通信方式的文章英语大学

Abstract: Chinese have experienced the pre-researches and partial satellite tests on the man carried cosmonautic vehicle, carried on the researches on environmental control and ecology protection subsystem in "Shenzhou" airships, carried on the researches on physical chemistry regenerating technical of environmental control and ecology protection & that of controlled ecology and ecology protection. This paper mainly introduces the research evolution of the technical of the environmental control and ecology protection system and analyses the technical characteristic about the environmental control and ecology protection : In this paper, we provide a new practical method to abstract noise model of INS/GNSS integrated navigation system for Kalman filter from measuring data, we first designed the experiment which based on the elaborate deduction, then we log the data of GNSS and made stationary test of the stochastic process, after that, we fit the model and estimate the parameter. This method, we think, can be used practically in other integrated navigation system.

Computers are changing our life. You can do a lot of things with a computer. Such as, you can use a computer to write articles, watch video CDs, play games and do office work. But the most important use of a computer is to join the Internet. By joining a computer to Internet, we can get the latest information in all fields. We don’t need to leave home to borrow books from a library or to do shopping in a supermarket. Computers help us live a more convenient life. With the development of computers,

Three Kinds of CommunicationAs we all know, communication has been playing an important part in people's life. As far as I know there are many kinds of communication, among them mail, telephone and computer are most commonly letters is one of them. People use it to exchange information, ideas and thoughts. Slow as the mail is, it is the cheapest means of communication. The second kind is the telephone. By using telephone, people can hear each other even if they are far away. With the development of modern science and technology,the computer has come into being. Communication with computers is fast and easy. In this way, people can send E-mail to each a word, mail, telephone and computer all help to bring people all over the world closer.