有的,给你参考下!
毕业设计(论文)OFDM通信系统创思通信毕业设计论文参考doc
一般学校里面带毕业论文的老师都有自己特定的课题，你可以选择自己喜欢、感兴趣的去做，如果没有你喜欢的，可以自己设置一个题目，经学校批准，自己做，不过这样导师可能无法在内容上指导你，仅能在做课题的一般方法上给予你指导。以上是作为过来人的个人意见，仅供参考！
现化通信技术给我们带来方便太多了，从以前为了传输信号用的风火台点狼烟到现在用电话和手机。从以前亲眼看到几百米景物到现在电视捍几千米几千公里里景物。从一个人讲话小范围几十人听到现在几万人或几亿人都能听的音视。从人记录信息甲骨文到现在计算机打印等
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下面的都是毕业论文范文,有用的话,请给我红旗LMX2350/LMX2352芯片简介及电路设计基于LMX2306/16/26 芯片简介及应用电路设计 基于LT5500f 的8~7 GHzLNA/混频器电路设计基于LT5517 40MHZ到90NHZ 积分解调器的设计基于LT5527的400MHz至7GHz高信号电平下变频混频器电路设计基于LT5572的芯片简介及应用电路设计基于LT5516的芯片简介及应用电路设计 基于MAX2039的芯片简介及应用电路设计 基于MAX2102/MAX2105芯片简介及应用电路设计基于MAX2106 芯片简介及应用电路设计 基于MAX2323/MAX2325 的芯片简介及应用电路设计 基于MAX2338芯片简介及应用电路设计 基于MAX2511的芯片简介及应用电路设计 基于MAX2685的芯片简介及应用电路设计 基于MAX2753的芯片简介及应用电路设计基于MAX9981芯片简介及应用电路设计基于MAX9994的芯片简介及应用电路设计 基于MAX9995的芯片简介及应用电路设计基于MC12430的芯片简介及应用电路设计基于MC88920芯片简介及应用电路设计基于MPC97H73的简介及电路设计基于MPC9229 芯片简介及应用电路设计 基于mpc9239芯片简介及应用电路设计 基于MPC9992 芯片简介及应用电路设计基于mpc92433芯片的简介及应用电路设计基于TQ5121的无线数据接收器电路设计基于TQ5135的芯片简介及应用电路设计基于TQ5631 3V PCS波段CDMA射频放大混频器电路设计语音信号处理技术及应用网络文档发放与认证管理系统网络配置管理对象分析与应用三维激光扫描仪中图像处理快速算法设计基于分形的自然景物图形的生成图像压缩编码基于奇异值分解的数字图像水印算法研究数字图象融合技术汽车牌照定位与分割技术的研究焦炉立火道温度软测量模型设计加热炉的非线性PID控制算法研究直接转矩控制交流调速系统的转矩数字调节器无线会议系统的设计温度检测控制仪器简易远程心电监护系统基于LabVIEW的测试结果语音表达系统程控交换机房环境监测系统设计单片机控制的微型频率计设计基于DSP的短波通信系统设计（射频单元）等精度数字频率计不对称半桥直直变换器仿真研究基于MATLAB的直流电动机双闭环调速系统无线传输应变型扭矩仪模糊控制在锅炉焊接过程中的应用三层结构的工作流OA的应用与实现基于ANSYS0的永磁直线电机的有限元分析及计算音频信号的数字水印技术3V低压CMOS零延迟1：11时钟发生器基于ADF4116/4117/4118的芯片简介及应用电路设计ADF4193芯片简介及应用电路设计LMX2310U/LMX2311U/LMX2312U/LMX2313U芯片简介及应用电路设计MAX2754芯片简介及应用电路设计MPC92432芯片简介及应用电路设计高增益矢量乘法器基于400MSPS 14-Bit,8VCMOS直接数字合成器AD9951基于900MHz低压LVPECL时钟合成器的电路设计基于 MAX2450芯片简介及应用电路设计基于AD831低失真有源混频器的电路设计基于AD7008的芯片简介及应用电路设计基于AD8341 芯片简介及应用电路设计基于AD8348的50M-1000M正交解调器基于AD8349的简介及应用电路设计基于AD9511的简介及电路应用基于AD9540的芯片简介及电路设计基于AD9952的芯片简介和应用电路设计基于ADF436的集成数字频率合成器与压控振荡器基于ADF4007简介及电路设计基于ADF4110/ADF4111/ADF4112/ADF4113上的应用电路设计基于ADF4154的芯片简介及应用电路设计基于ADF4360-0的芯片简介及应用电路设计基于ADF4360-3电路芯片简介及应用电路设计基于ADF4360-6的简介及应用电路设计基于ADF4360-7的集成整形N合成器的压控振荡器基于ADL5350的简介及应用电路设计基于CMOS 200 MHZ数字正交上变频器设计基于CMOS 的AD9831芯片数字频率合成器的电路设计基于CX3627ERDE的芯片简介及应用电路设计基于CXA3275Q的芯片简介及应用电路设计基于CXA3556N的芯片简介及应用电路设计基于IMA-93516的芯片简介及应用电路设计VPN技术研究UCOSII在FPGA上的移植IPTV影音信号传输网络设计GSM移动通信网络优化的研究与实现 FSK调制系统DSP处理GPS接收数据的应用研究Boot Loader在嵌入式系统中的应用ADS宽带组网与测试基于FPGA的IIR滤波器设计MP3宽带音频解码关键技术的研究与实现基本门电路和数值比较器的设计编码器和译码器的设计智力竞赛抢答器移位寄存器的设计与实现四选一数据选择器和基本触发器的设计四位二进制加法器和乘法器数字钟的设计与制作数字秒表的设计数控分频器及其应用汽车尾灯控制器的设计交通灯控制器的设计简易电子琴的设计简单微处理器的设计DSP最小系统的设计与开发基于消息队列机制（MSMQ）的网络监控系统基于DSP的电机控制的研究基于数学形态学的织物经纬密度的研究纱条均匀度测试的研究 图像锐化算法的研究及其DSP实现 手写体数字识别有限冲击响应滤波器的设计及其DSP实现 同步电机模型的MATLAB仿真USB通信研究及其在虚拟仪器中的应用设计WLAN的OFDM信道估计算法研究采用S12交换机支持NGN下MEGACO呼叫流程的设计基于语音信号预测编码的数据压缩算法的研究与实现基于小波变换数字图像水印盲算法基于小波变换和神经网络的短期负荷预测研究嵌入式系统建模仿真环境PtolemyII的研究与应用分布式计算环境的设计与实现复合加密系统中DES算法的实现大学自动排课算法设计与实现基于AES的加密机制的实现基于AES算法的HASH函数的设计与应用基于DM642的H264视频编码器优化和实现基于Huffman编码的数据压缩算法的研究与实现基于internet的嵌入式远程测控终端研制基于Matlab的FMCW（调频连续波）的中频正交处理和脉冲压缩处理 基于MATLAB的对称振子阻抗特性和图形仿真基于windows的串口通信软件设计基于粗糙集和规则树的增量式知识获取算法自适应蚁群算法在DNA序列比对中的应用远程监护系统的数据记录与传输技术研究基于分布式体系结构的工序调度系统的设计基于活动图像编码的数据压缩算法的设计与实现基于宽带声音子带编码的数据压缩算法的设计与实现基于网络数据处理XML技术的设计基于小波变换的数据压缩算法的研究与实现基于小波变换的配电网单相接地故障定位研究及应用英特网上传输文件的签名与验证程序
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现化通信技术给我们带来方便太多了，从以前为了传输信号用的风火台点狼烟到现在用电话和手机。从以前亲眼看到几百米景物到现在电视捍几千米几千公里里景物。从一个人讲话小范围几十人听到现在几万人或几亿人都能听的音视。从人记录信息甲骨文到现在计算机打印等
毕业设计(论文)OFDM通信系统创思通信毕业设计论文参考doc
这种文体一般是先指出对方错误的实质，或直接批驳（驳论点），或间接批驳（驳论据、驳论证）；继而，针锋相对地提出自己的观点并加以论证。驳论是跟立论紧密联系着的，因为反驳对方的错误论点，往往要针锋相对地提出自己的正确论点，以便彻底驳倒错误论点。侧重于驳论的议论文是驳论文驳论文往往破中有立,边破边立,即在反驳对方错误论点的同时,针锋相对地提出自己的正确观点批驳错误论点的方法有三种:驳论点驳论据驳论证但归根结底是为了驳论点。 驳论文是议论文常见的论证文体，在对一些社会丑陋现象的批判与揭露上价值尤为突出，但学生在写作中往往感到不知从何驳起，无从下笔。其实，这类文章写作有一个思路，那就是：1、列现象，2、示弊端，3、探根源，4、指出路。本文适宜高中课文，鲁迅先生的名篇《拿来主义》为例，对驳论文的这一特征予以探析。列现象对现实中不合道德、有碍社会健康发展的现象进行列举。事例选取的典型性，以求警醒人们；罗列的丰富性，以求引起读者共鸣；修辞的多样性，以求彰显行文文采，增强气势。例：单是学艺上的东西，近来就先送一批古董到巴黎去展览，但终“不知后事如何”；还有几位“大师”们捧着几张古画和新画，在欧洲各国一路的挂过去，叫作“发扬国光”。听说不远还要送梅兰芳博士到苏联去，以催进“象征主义”，此后是顺便到欧洲传道。
论文是有题目的，根据题目不同 体例也不同，要根据导师的要求撰写开题报告、论证、最后试验、总结报告。
下面的都是毕业论文范文,有用的话,请给我红旗 LMX2350/LMX2352芯片简介及电路设计 基于LMX2306/16/26 芯片简介及应用电路设计 基于LT5500f 的8~7 GHzLNA/混频器电路设计 基于LT5517 40MHZ到90NHZ 积分解调器的设计 基于LT5527的400MHz至7GHz高信号电平下变频混频器电路设计 基于LT5572的芯片简介及应用电路设计 基于LT5516的芯片简介及应用电路设计 基于MAX2039的芯片简介及应用电路设计 基于MAX2102/MAX2105芯片简介及应用电路设计 基于MAX2106 芯片简介及应用电路设计 基于MAX2323/MAX2325 的芯片简介及应用电路设计 基于MAX2338芯片简介及应用电路设计 基于MAX2511的芯片简介及应用电路设计 基于MAX2685的芯片简介及应用电路设计 基于MAX2753的芯片简介及应用电路设计 基于MAX9981芯片简介及应用电路设计 基于MAX9994的芯片简介及应用电路设计 基于MAX9995的芯片简介及应用电路设计 基于MC12430的芯片简介及应用电路设计 基于MC88920芯片简介及应用电路设计 基于MPC97H73的简介及电路设计 基于MPC9229 芯片简介及应用电路设计 基于mpc9239芯片简介及应用电路设计 基于MPC9992 芯片简介及应用电路设计 基于mpc92433芯片的简介及应用电路设计 基于TQ5121的无线数据接收器电路设计 基于TQ5135的芯片简介及应用电路设计 基于TQ5631 3V PCS波段CDMA射频放大混频器电路设计 语音信号处理技术及应用 网络文档发放与认证管理系统 网络配置管理对象分析与应用 三维激光扫描仪中图像处理快速算法设计 基于分形的自然景物图形的生成 图像压缩编码 基于奇异值分解的数字图像水印算法研究 数字图象融合技术 汽车牌照定位与分割技术的研究 焦炉立火道温度软测量模型设计 加热炉的非线性PID控制算法研究 直接转矩控制交流调速系统的转矩数字调节器 无线会议系统的设计 温度检测控制仪器 简易远程心电监护系统 基于LabVIEW的测试结果语音表达系统 程控交换机房环境监测系统设计 单片机控制的微型频率计设计 基于DSP的短波通信系统设计（射频单元） 等精度数字频率计 不对称半桥直直变换器仿真研究 基于MATLAB的直流电动机双闭环调速系统 无线传输应变型扭矩仪 模糊控制在锅炉焊接过程中的应用 三层结构的工作流OA的应用与实现 基于ANSYS0的永磁直线电机的有限元分析及计算 音频信号的数字水印技术 3V低压CMOS零延迟1：11时钟发生器 基于ADF4116/4117/4118的芯片简介及应用电路设计 ADF4193芯片简介及应用电路设计 LMX2310U/LMX2311U/LMX2312U/LMX2313U芯片简介及应用电路设计 MAX2754芯片简介及应用电路设计 MPC92432芯片简介及应用电路设计 高增益矢量乘法器 基于400MSPS 14-Bit,8VCMOS直接数字合成器AD9951 基于900MHz低压LVPECL时钟合成器的电路设计 基于 MAX2450芯片简介及应用电路设计 基于AD831低失真有源混频器的电路设计 基于AD7008的芯片简介及应用电路设计 基于AD8341 芯片简介及应用电路设计 基于AD8348的50M-1000M正交解调器 基于AD8349的简介及应用电路设计 基于AD9511的简介及电路应用 基于AD9540的芯片简介及电路设计 基于AD9952的芯片简介和应用电路设计 基于ADF436的集成数字频率合成器与压控振荡器 基于ADF4007简介及电路设计 基于ADF4110/ADF4111/ADF4112/ADF4113上的应用电路设计 基于ADF4154的芯片简介及应用电路设计 基于ADF4360-0的芯片简介及应用电路设计 基于ADF4360-3电路芯片简介及应用电路设计 基于ADF4360-6的简介及应用电路设计 基于ADF4360-7的集成整形N合成器的压控振荡器 基于ADL5350的简介及应用电路设计 基于CMOS 200 MHZ数字正交上变频器设计 基于CMOS 的AD9831芯片数字频率合成器的电路设计 基于CX3627ERDE的芯片简介及应用电路设计 基于CXA3275Q的芯片简介及应用电路设计 基于CXA3556N的芯片简介及应用电路设计 基于IMA-93516的芯片简介及应用电路设计 VPN技术研究 UCOSII在FPGA上的移植 IPTV影音信号传输网络设计 GSM移动通信网络优化的研究与实现 FSK调制系统 DSP处理GPS接收数据的应用研究 Boot Loader在嵌入式系统中的应用 ADS宽带组网与测试 基于FPGA的IIR滤波器设计 MP3宽带音频解码关键技术的研究与实现 基本门电路和数值比较器的设计 编码器和译码器的设计 智力竞赛抢答器 移位寄存器的设计与实现 四选一数据选择器和基本触发器的设计 四位二进制加法器和乘法器 数字钟的设计与制作 数字秒表的设计 数控分频器及其应用 汽车尾灯控制器的设计 交通灯控制器的设计 简易电子琴的设计 简单微处理器的设计 DSP最小系统的设计与开发 基于消息队列机制（MSMQ）的网络监控系统 基于DSP的电机控制的研究 基于数学形态学的织物经纬密度的研究 纱条均匀度测试的研究 图像锐化算法的研究及其DSP实现 手写体数字识别 有限冲击响应滤波器的设计及其DSP实现 同步电机模型的MATLAB仿真 USB通信研究及其在虚拟仪器中的应用设计 WLAN的OFDM信道估计算法研究 采用S12交换机支持NGN下MEGACO呼叫流程的设计 基于语音信号预测编码的数据压缩算法的研究与实现 基于小波变换数字图像水印盲算法 基于小波变换和神经网络的短期负荷预测研究 嵌入式系统建模仿真环境PtolemyII的研究与应用 分布式计算环境的设计与实现 复合加密系统中DES算法的实现 大学自动排课算法设计与实现 基于AES的加密机制的实现 基于AES算法的HASH函数的设计与应用 基于DM642的H264视频编码器优化和实现 基于Huffman编码的数据压缩算法的研究与实现 基于internet的嵌入式远程测控终端研制 基于Matlab的FMCW（调频连续波）的中频正交处理和脉冲压缩处理 基于MATLAB的对称振子阻抗特性和图形仿真 基于windows的串口通信软件设计 基于粗糙集和规则树的增量式知识获取算法 自适应蚁群算法在DNA序列比对中的应用 远程监护系统的数据记录与传输技术研究 基于分布式体系结构的工序调度系统的设计 基于活动图像编码的数据压缩算法的设计与实现 基于宽带声音子带编码的数据压缩算法的设计与实现 基于网络数据处理XML技术的设计 基于小波变换的数据压缩算法的研究与实现 基于小波变换的配电网单相接地故障定位研究及应用 英特网上传输文件的签名与验证程序参考资料：_1369005087_7_html
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通信与信息系统管理毕业论文怎么写？学长help 你
移动通信作为一个科技密集型和知识密集型的高新技术产业，在现代市场经济条件下，在竞争空间日趋激烈和社会信息化发展趋势下，必须十分重视市场营销管理，重视市场营销管理体系建设。要充分根据市场需求的现状与趋势，制定计划，合理有效配置资源。通过有效地满足市场需求，来赢得竞争优势，在加快市场营销步伐的同时，努力建立和完善移动通信市场营销管理体系，以不断适应新的发展形势需要。1目前国内移动通信市场营销管理的现状“市场部”这个词走进国内企业还是近几年的事，目前移动通信企业内部所设置的营销部、分销处、运营部、销售部、以及市场管理部等都是市场部的涵盖范围。从分营后的中国移动通信、中国联通、上海光大、电信长城等具有运营资格的运营商来看，中国移动通信市场营销做的比较大，在原先营业厅基础上，又发展了商场、专卖店、量贩等销售形式，给人一种规模和实力的感觉，然而市场知名度高，但市场品牌忠诚度低；中国联通起步晚，但市场经济条件下没有迟到的经营者，只有善于经营的赢家，中国联通采取分销商网络营销的思路引起业内效仿，但诸多不完善的环节也时常引起消费者反应；其它几家运营商尽管营销思路很前卫，但是制约其市场开发的因素较多，市场反应冷淡。可以说，目前移动通信企业市场营销管理是各行其道，短期行为太多，缺乏长远统一的规划。从行业整个市场来看，我国移动通信企业尚未真正掌握专业营销知识和操作技能，就其对市场的态度和行为而言，移动通信企业还处于为完成短期销售目标而采用广告、公关、有奖销售等促销手段为主的促销导向型阶段，尚未达到市场营销导向型阶段。当然，其中原因也有我国通信行业长期处于垄断阶段的因素，广大从业者没有市场危机感。没有市场危机感就不会产生市场营销紧迫感，对市场营销管理的认识和努力只是在竞争机制下才有所转变。就移动通信行业进入市场经济状态的时间和目前市场供需关系的状况看，从业者的观念和认识的迅速提高要靠调查、分析、预测、营销企划等方式来引导、开拓、扩大和满足广大消费者对其服务的需求来完成，进而达到企业整体长远的营销目标的实现，尽管尚须时日，但这是市场营销的需求和必然发展趋势。从市场发展规律来看，卖方市场到买方市场的转变往往是在市场开始竞争之时，对竞争日渐激烈的移动通信业而言，具有前瞻性目光的人士早已看到，初露端倪的买方市场正在形成。如何适应市场、创造市场，是移动通信企业面临的带有战略性的问题。移动通信商们应该清醒认识到，拥有目前的市场并不完全意味着必然占有市场，还必须依靠行之有效的方式去进行市场拓展，发展市场，创造市场，这个行之有效的方式就是建立和完善企业的市场营销管理体系。2市场营销管理体系的组成和细分从事过营销的人都知识，市场营销的表现是市场管理，市场营销管理的实质是需求管理。企业在开展市场营销的过程中，一般要设定一个在目标市场上预期要实现的交易水平。然而，实际需求水平可能低于、等于、或高于这个预期的需求水平，换言之，在目标市场上，可能没有需求、需求很小或超量需求，市场营销管理就是要对付这些不同的需求，市场营销管理体系就是要对市场营销管理进行科学有效组合。根据移动通信行业自身特点以及市场的发展情况来看，移动通信市场营销管理体系应包括五个方面：(1)市场需求管理；(2)市场营销网络管理；(3)市场推动管理；(4)市场营销环境管理；(5)市场营销组织管理。这个市场营销管理体系就是通过创造建立和保持与目标市场之间的有益交换和联系，以实现移动通信企业的各种目标并进行分析、计划、执行和控制的市场营销指挥系统，可以说，这个系统不仅是定价、分销、促销等单一活动的职能行使，而是一个目标市场运作的中枢神经系统，通过这个系统，企业不断观察市场，发现和评估各种变化因素，然后反馈企业，作为企业制定新战略和行动计划的基础，然后运用新的修正过的行动来消除阻碍目标实现的因素，并观察评价客户和竞争对此作出的反应，然后再反馈到企业使企业再次形成新的战略修正方案推向市场，这样形成良性循环，以达到不断适应市场，创造市场的目的。就移动通信市场营销管理体系的五个组成部分而言，既有机地结合，又独立工作，每一部分又包涵着丰富的细分内容。1市场营销需求管理细分我们知道，市场营销管理的实质是需求管理。根据市场需求水平、时间和性质不同，市场需求一般有八种不同状况：(1)负需求；(2)无需求；(3)潜伏需求；(4)下降需求；(5)不规则需求；(6)充分需求；(7)过量需求；(8)有害需求。从市场的组成要素人口、购买力、购买欲望来看，目前移动通信市场需求状况基本处于充分需求和潜伏需求的阶段，是市场开拓者应好好把握的大好时机。市场营销需求管理就是要对市场的需求状况进行有效管理，充分做好市场调查研究，深入市场，广泛了解客户、顾客、分销商、供应商以及广告反应、行业信息、营销网络、促销效果等有关业内的综合情况，广泛搜集市场信息，摸准市场的变化，找准潜在市场及市场盲区和死角，做出详尽属实的市场调研分析报告，以便企业的企划者以此制定市场营销企划方案，制定新业务计划。可以说，市场营销需求管理是企业营销工作的一双眼睛。一般来说，市场营销需求管理包括目标市场分析和市场目标分析两个方面。(1)目标市场影响移动通信目标市场的因素较多，从市场定位、营销策略、促销政策、广告方式、产品价格、产品包装及外形到技术先进程度、购买形式、服务态度、营销网络建设、售后服务等方面都要认真考虑。目标市场变化不断，移动通信运营商也要依据市场的变化不断变化营销管理思路。从手机市场上我们可以看到，手机从当初的组织消费购买到如今的私人消费购买为主，目标市场的变化也引起供应商的努力，摩托罗拉从当初以行政机关领导为主到现在形色多样的各种层次手机，正是目标市场使然。移动通信商要在研究目前目标市场的综合情况时，不断把目光投向市场的新变化，进行市场细分与目标市场新选择，准确把握和预测市场需求的发展动态，才能做到有的放矢。(2)市场目标那些收入稳定、有一定的经济实力和地位的人群，固然是市场目标，但这些人早已是手机的拥有者，移动通信商关注的是新增长的消费层和高消费层新的消费变化。市场永远在变化，所有稳定都是暂时的，移动通信市场也不例外。不同的消费者有不同的变化，从行政机关公务员、企业老板到小业主、企业白领阶层、打工仔，不同年龄不同性别，需求不同，变化也不同，兴趣爱好各异，审美观点有别，需要市场开拓者仔细研究，区别对待，进行准确市场定位。这一点我们从外企的情况可以看出，摩托罗拉手机以厚重大方为主，为行政机关人员和高级管理者所看重；诺基亚以专业公司著称，倡导科技以人为本，平均不到一周时间推出新款，其先进的形象对新潮时尚人士和高级知识分子具有较强吸引力，而在全国各大媒体统一推出的《专业、全面、关怀》系列宣传篇，更是把诺基亚推向大众化市场；爱立信则以灵巧方便为高级商务人士所青睐；飞利浦更是以外形美观色彩明快吸引着广大青年消费者。我国的科键、波导、康佳则以工薪阶Mobile communications as a technology-intensive and knowledge-intensive high-tech industries, in a modern market economy, the space in the increasingly fierce competition and social development trend of information technology, we must attach great importance to marketing management, attention to marketing management To fully meet market demand the status and trends, planning, rational and efficient allocation of To effectively meet the market demand, to gain a competitive advantage in accelerating the pace of marketing at the same time, efforts to establish and improve mobile communications marketing management system to continuously adapt to the new development of the 1 domestic mobile communications marketing management status "Market" or words into the domestic enterprises in recent years, the current mobile communication enterprises set up by the marketing, distribution, the Ministry of operations, sales and market management, and so are the Department of the Ministry of the coverage of the market From the camp after China Mobile, China Unicom, the Shanghai Everbright, telecommunications operators, such as the Great Wall of qualified operators, China Mobile Marketing to do more, in the original business on the basis of the Office and the development of shopping malls, Stores, hypermarkets and other forms of sales, gives people a sense of size and strength, but the market well-known, but the market is low brand loyalty; China Unicom late start, but not under market economy conditions late for the operators, only good at business The winner, China Unicom network marketing distributors to take the ideas from the industry to follow, but many imperfections often caused part of the response of consumers; several other carriers despite the very avant-garde marketing ideas, but restricted their market development than the factors , The market It can be said that the current mobile communication business marketing management is Gexingqidao, too much short-term, long-term lack of unified From the industry look at the entire market, China's mobile communication business has yet to truly master professional knowledge and operating skills marketing, on his attitude and behaviour of the market, the mobile telecommunications sector is still in the short-term sales target for the completion of using advertising, public relations, sales crossword , And other promotions based marketing-oriented stage, have not yet reached the market-oriented marketing Of course, the reasons for China's communications industry has a monopoly stage of the long-term factors, the majority of market practitioners no sense of No market will not have a sense of crisis on the marketing sense of urgency, the market knowledge and marketing management efforts in the mechanism of competition only if they On the mobile communications industry into the market economy status of the time and the market supply and demand situation, the practitioners of the concept and awareness of the rapid increase to rely on investigation, analysis, forecasts, marketing and other ways to guide the planning, development, to expand and meet the majority of consumer To demand for its services to complete, thereby achieve their overall long-term goal of marketing, despite the need to be given time, but this is the marketing needs and inevitable From the development of the market, a seller's market to a buyer's market is often the changes in the market when the competition began, the increasingly fierce competition in the mobile communications industry, are forward-looking vision of people already see emerging is a buyer's market F How to adapt to the market and create markets, is facing the mobile communications companies with strategic Mobile communications have to be clearly recognized that the current market has not fully occupy the market will inevitably mean that, we must rely on effective ways to conduct market development, market development, market creation, the effective ways is to build and Improve enterprise marketing management 2 marketing management system and the breakdown of the composition Engaged in the marketing people have the knowledge, marketing is the performance of market management, marketing management, in essence, is demand In carrying out marketing enterprises in the process, to set a general target market in order to achieve the expected level of However, the level may be lower than actual demand, equal to or higher than the expected level of demand, in other words, the target market, may not demand, needs little or excessive demand, marketing management is to deal with these different needs, Marketing Management System is to the marketing management of scientific and effective According to the mobile telecommunications sector of its own characteristics and the development of the market situation, mobile communications marketing management system should include five areas: (1) market demand management, (2) marketing network management, (3) market-driven management, (4 ) Marketing environment management, (5) marketing organization and The marketing management system is established and maintained through the creation of target markets and between the exchange and useful links, mobile communication enterprises in order to achieve the objectives and analysis, planning, implementation and control of the marketing chain of command, it can be said that this System is not only pricing, distribution, marketing and other activities of the functions of a single exercise, but a target market operation of the central nervous system, through this system, enterprises have continuously observe the market, the detection and assessment of the changes, and then feedback enterprises, as enterprises develop New strategies and action plans based on, and then use the new revised action to eliminate obstacles to achieve the objectives, and to observe and evaluate customer response to this competition, and then back to the enterprises so that enterprises once again to form a new strategic programme that Into the market, such a virtuous circle, constantly adapting to the market to achieve, the purpose of creating the Marketing on the mobile communication management system of five components, the combination of both, working independently, each part also includes a breakdown of rich 1 marketing demand management breakdown We know that marketing management is the essence of demand According to market demand, time and a different nature, the general market demand has eight different conditions: (1) negative demand (2) No demand, (3) latent demand (4) decreased demand (5) irregular demand; (6) the full demand (7) excessive demand (8) harmful From the constituent elements of the market, purchasing power, the desire to purchase, the current mobile communication market demand situation is basically in full demand and potential demand for the stage, the market should take full advantage of the pioneers of Marketing is to manage demand in the market demand for effective management, to make full market research studies, in-depth market, broad knowledge of clients, customers, distributors, suppliers and advertising response, industry information, marketing network, promotional effects On the comprehensive situation of the industry, extensive collection of market information, Mozhun market changes, and identify potential markets and market blind spots and dead ends, make a detailed analysis of the case of market research reports in order to enterprises are planning to develop marketing planning programme, The development of new business It can be said that marketing needs of enterprise marketing management is the work of the pair of In general, marketing demand management, including the target market analysis and objective analysis of two aspects of the (1) target market Impact of mobile communications market factors more objective, market positioning, marketing strategy, promotion policies, advertising, product prices, product packaging and appearance to the advanced level of technology, purchase forms, service and marketing network construction, service and other aspects To seriously Target market changes constantly, mobile communication operators to market changes based on the changing marketing and management From the phone on the market, we can see that the phone from the original purchase of consumer organizations to today's mainly the purchase of private consumption, the target market also caused changes in the supplier's efforts, Motorola from the original mainly in the executive leadership to diverse now Xingse Various levels of mobile phones, the result is the target Mobile communications have to study the current target market in the comprehensive situation, keep eyes on the new changes in the market, market segmentation and target market of new options, accurate grasp of market demand and projected developments can be (2) target market Those who are stable, have a certain economic strength and status of the crowd, of course, is the target market, but these people have long been the owner of a mobile phone, mobile communications are concerned that the new growth of consumption and high consumption of the new changes in The market will never change, and stability are all temporary, mobile communications market is no Different consumers have different changes, from the administrative organs of civil servants, owners of small business owners, corporate white-collar class, wage earners and age groups of different sex, different needs, different changes, different hobbies, aesthetic views are different, the needs of the market Portland careful study and treat them differently, accurate market This is the situation we can see that foreign invested enterprises, Motorola mobile phones mainly to heavy generous, for the executive officers and senior managers by value; Nokia to a professional company, science and technology to promote people-centered, less than a week the average time a new , Of its advanced image of the futuristic and intellectuals have strong appeal, and the reunification of the country the major media's "professional, comprehensive and caring" series of promotional articles, Geng Shiba popular Nokia push the market; love Ericsson while ingenious convenient for senior business people favor; Philips is a more attractive appearance bright colors to attract a large number of young China's key Branch, Bird, Konka while working order
基于WIN CE的ADSL线路参数研究ADSL line parameters research based on WIN CE _EMC&dq=ADSL&printsec=frontcover&source=web&ots=oJXbatzNWO&sig=fyomvlADYeB7NRS2gjTJAfpSapQ--------------Windows CE (also known officially as Windows Embedded CE since version 0[2][3], and sometimes abbreviated WinCE) is a variation of Microsoft's Windows operating system for minimalistic computers and embedded Windows CE is a distinctly different kernel, rather than a trimmed-down version of desktop W It is not to be confused with Windows XP Embedded which is NT- It is supported on Intel x86 and compatibles, MIPS, ARM, and Hitachi SuperH FeaturesWindows CE is optimized for devices that have minimal storage—a Windows CE kernel may run in under a megabyte of Devices are often configured without disk storage, and may be configured as a “closed” system that does not allow for end-user extension (for instance, it can be burned into ROM) Windows CE conforms to the definition of a real-time operating system, with a deterministic interrupt It supports 256 priority levels and uses priority inheritance for dealing with priority The fundamental unit of execution is the This helps to simplify the interface and improve execution Microsoft has stated that the ‘CE’ is not an intentional initialism, but many people believe CE stands for ‘Consumer Electronics’ or ‘Compact Edition’; users often disparagingly called it “Wince”[4] Microsoft says it implies a number of Windows CE design precepts, including “Compact, Connectable, Compatible, Companion, and E”[5] The first version, known during development under the codename “Pegasus”, featured a Windows-like GUI and a number of Microsoft's popular applications, all trimmed down for smaller storage, memory, and speed of the palmtops of the Since then, Windows CE has evolved into a component-based, embedded, real-time operating It is no longer targeted solely at hand-held Many platforms have been based on the core Windows CE operating system, including Microsoft's AutoPC, Pocket PC 2000, Pocket PC 2002, Windows Mobile 2003, Windows Mobile 2003 SE, Windows Mobile 0, Windows Mobile 6, Smartphone 2002, Smartphone 2003 and many industrial devices and embedded Windows CE even powered select games for the Sega Dreamcast, was the operating system of the controversial Gizmondo handheld, and can partially run on modified Microsoft Xbox game A distinctive feature of Windows CE compared to other Microsoft operating systems is that large parts of it are offered in source code First, source code was offered to several vendors, so they could adjust it to their Then products like Platform Builder (an integrated environment for Windows CE OS image creation and integration, or customized operating system designs based on CE) offered several components in source code form to the general However, a number of core components that do not need adaptation to specific hardware environments (other than the CPU family) are still distributed in binary form Development toolsVisual StudioLate versions of Microsoft Visual Studio support projects for Windows CE / Windows Mobile, producing executable programs and platform images either as an emulator or attached by cable to an actual mobile A mobile device is not necessary to develop a CE The NET Compact Framework supports a subset of the NET Framework with projects in C# and VBNET, but not Managed C++Platform BuilderThis programming tool is used for building the platform (BSP + Kernel), device drivers (shared source or custom made) and also the This is a one step environment to get the system up and One can also use Platform Builder to export an SDK (standard development kit) for the target microprocessor (SuperH, x86, MIPS, ARM ) to be used with another associated tool set named Embedded Visual C++ (eVC)The Embedded Visual C++ tool is for development of embedded application for Windows CE based This tool can be used standalone using the SDK exported from Platform Builder or using the Platform Builder using the Platform Manager connectivity Relationship to Windows Mobile, Pocket PC, and SmartPhoneOften Windows CE, Windows Mobile, and Pocket PC are used This practice is not entirely Windows CE is a modular/componentized operating system that serves as the foundation of several classes of Some of these modules provide subsets of other components' features ( varying levels of windowing support; DCOM vs COM), others which are mutually exclusive (Bitmap or TrueType font support), and others which add additional features to another One can buy a kit (the Platform Builder) which contains all these components and the tools with which to develop a custom Applications such as Excel Mobile/Pocket Excel are not part of this The older Handheld PC version of Pocket Word and several other older applications are included as samples, Windows Mobile is best described as a subset of platforms based on a Windows CE Currently, Pocket PC (now called Windows Mobile Classic), SmartPhone (Windows Mobile Standard), and PocketPC Phone Edition (Windows Mobile Professional) are the three main platforms under the Windows Mobile Each platform utilizes different components of Windows CE, as well as supplemental features and applications suited for their respective Pocket PC and Windows Mobile is a Microsoft-defined custom platform for general PDA use, and consists of a Microsoft-defined set of minimum profiles (Professional Edition, Premium Edition) of software and hardware that is The rules for manufacturing a Pocket PC device are stricter than those for producing a custom Windows CE-based The defining characteristics of the Pocket PC are the digitizer as the primary Human Interface Device and its extremely portable The SmartPhone platform is a feature rich OS and interface for cellular phone SmartPhone offers productivity features to business users, such as email, as well as multimedia capabilities for The SmartPhone interface relies heavily on joystick navigation and PhonePad Devices running SmartPhone do not include a touchscreen SmartPhone devices generally resemble other cellular handset form factors, whereas most Phone Edition devices use a PDA form factor with a larger Windows Mobile 5 supports USB 0 and new devices running this OS will also conform to the USB Mass Storage Class, meaning the storage on PPC can be accessed from any USB-equipped PC, without requiring any extra software, except requiring a compliant In other words, you can use it as a flash Competing productsCompetitors to consumer CE based PDA platforms like Pocket PC – the main application of Windows CE – are Java, Symbian OS, Palm OS, iPhone OS and Linux based packages like Qtopia Embedded Linux environment from Trolltech, Convergent Linux Platform from a La Mobile, and Access Linux Platform from Orange and AThe secondary usage of CE is in devices in need of graphical user interfaces, (point of sale terminals, media centers, web tablets, thin clients) as the main selling point CE is the look and feel being similar to desktop W The competition is Windows XP, Linux and graphical packages for simpler embedded operating Being an RTOS, Windows CE is also theoretically a competitor to any realtime operating system in the embedded space, like VxWorks, ITRON or eC The dominating method, however, of mixing Windows look and feel with realtime on the same hardware, is to run double operating systems using some virtualization technology, like TRANGO Hypervisor from TRANGO Virtual Processors or Intime from TenAsys in the case of Windows, and OS Ware from VirtualLogix, Padded Cell from Green Hills Software, OKL4 from Open Kernel Labs, TRANGO Hypervisor from TRANGO Virtual Processors, RTS Hypervisor from Real-Time Systems or PikeOS from Sysgo, in case of the ---------Asymmetric Digital Subscriber Line (ADSL) is a form of DSL, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can It does this by utilizing frequencies that are not used by a voice telephone A splitter - or microfilter - allows a single telephone connection to be used for both ADSL service and voice calls at the same Because phone lines vary in quality and were not originally engineered with DSL in mind, it can generally only be used over short distances, typically less than 3mi (5 km) [William Stallings' book]At the telephone exchange the line generally terminates at a DSLAM where another frequency splitter separates the voice band signal for the conventional phone Data carried by the ADSL is typically routed over the telephone company's data network and eventually reaches a conventional internet In the UK under British Telecom the data network in question is its ATM network which in turn sends it to its IP network IP CThe distinguishing characteristic of ADSL over other forms of DSL is that the volume of data flow is greater in one direction than the other, it is Providers usually market ADSL as a service for consumers to connect to the Internet in a relatively passive mode: able to use the higher speed direction for the "download" from the Internet but not needing to run servers that would require high speed in the other There are both technical and marketing reasons why ADSL is in many places the most common type offered to home On the technical side, there is likely to be more crosstalk from other circuits at the DSLAM end (where the wires from many local loops are close to each other) than at the customer Thus the upload signal is weakest at the noisiest part of the local loop, while the download signal is strongest at the noisiest part of the local It therefore makes technical sense to have the DSLAM transmit at a higher bit rate than does the modem on the customer Since the typical home user in fact does prefer a higher download speed, the telephone companies chose to make a virtue out of necessity, hence ADSL On the marketing side, limiting upload speeds limits the attractiveness of this service to business customers, often causing them to purchase higher cost Digital Signal 1 services In this fashion, it segments the digital communications market between business and home usersHow ADSL worksOn the wireCurrently, most ADSL communication is full Full duplex ADSL communication is usually achieved on a wire pair by either frequency division duplex (FDD), echo canceling duplex (ECD), or time division duplexing (TDD) FDM uses two separate frequency bands, referred to as the upstream and downstream The upstream band is used for communication from the end user to the telephone central The downstream band is used for communicating from the central office to the end With standard ADSL (annex A), the band from 875 kHz to 138 kHz is used for upstream communication, while 138 kHz – 1104 kHz is used for downstream Each of these is further divided into smaller frequency channels of 3125 kH During initial training, the ADSL modem tests which of the available channels have an acceptable signal-to-noise The distance from the telephone exchange, noise on the copper wire, or interference from AM radio stations may introduce errors on some By keeping the channels small, a high error rate on one frequency thus need not render the line unusable: the channel will not be used, merely resulting in reduced throughput on an otherwise functional ADSL Vendors may support usage of higher frequencies as a proprietary extension to the However, this requires matching vendor-supplied equipment on both ends of the line, and will likely result in crosstalk issues that affect other lines in the same There is a direct relationship between the number of channels available and the throughput capacity of the ADSL The exact data capacity per channel depends on the modulation method [edit] ModulationADSL initially existed in two flavours (similar to VDSL), namely CAP and DMT CAP was the de facto standard for ADSL deployments up until 1996, deployed in 90 percent of ADSL installs at the However, DMT was chosen for the first ITU-T ADSL standards, G1 and G2 (also called Gdmt and Glite respectively) Therefore all modern installations of ADSL are based on the DMT modulation Annexes J and M shift the upstream/downstream frequency split up to 276 kHz (from 138 kHz used in the commonly deployed annex A) in order to boost upstream Additionally, the "all-digital-loop" variants of ADSL2 and ADSL2+ (annexes I and J) support an extra 256 kbit/s of upstream if the bandwidth normally used for POTS voice calls is allocated for ADSL While the ADSL access utilizes the 1 MHz band, ADSL2+ utilizes the 2 MHz The downstream and upstream rates displayed are theoretical Note also that because Digital subscriber line access multiplexers and ADSL modems may have been implemented based on differing or incomplete standards some manufacturers may advertise different For example, Ericsson has several devices that support non-standard upstream speeds of up to 2 Mbit/s in ADSL2 and ADSL2+[edit] Installation issuesDue to the way it uses the frequency spectrum, ADSL deployment presents some It is necessary to install appropriate frequency filters at the customer's premises, to avoid interferences with the voice service, while at the same time taking care to keep a clean signal level for the ADSL In the early days of DSL, installation required a technician to visit the A splitter was installed near the demarcation point, from which a dedicated data line was This way, the DSL signal is separated earlier and is not attenuated inside the customer However, this procedure is costly, and also caused problems with customers complaining about having to wait for the technician to perform the As a result, many DSL vendors started offering a self-install option, in which they ship equipment and instructions to the Instead of separating the DSL signal at the demarcation point, the opposite is done: the DSL signal is "filtered off" at each phone outlet by use of a low pass filter, also known as This method does not require any rewiring inside the customer A side effect of the move to the self-install model is that the DSL signal can be degraded, especially if more than 5 voiceband devices are connected to the The DSL signal is now present on all telephone wiring in the building, causing attenuation and A way to circumvent this is to go back to the original model, and install one filter upstream from all telephone jacks in the building, except for the jack to which the DSL modem will be Since this requires wiring changes by the customer and may not work on some household telephone wiring, it is rarely It is usually much easier to install filters at each telephone jack that is in
As we all know ,communication has been playing an important part in people‘s As far as I know there are many kinds of communication, among them mail, telephone and computer are most commonly Writing letters is one of People use it to exchange information, ideas and Slow as the mail is, it is the cheapest means of The second kind is the By using telephone, people can hear each other even if they are far With the development of modern science and technology,the computer has come into Communication with computers is fast and In this way, people can send E-mail to each In a word, mail, telephone and computer all help to bring people all over the world
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