Open Style Mobile Communication Experiment System's Research

The open style mobile communication experiment system is one kind of mobile communication basic principle demonstration system. And the mobile communication terminal is divided into many modules to realize. Its circuit can be modified easily. This design's goal is to let the general students can experience and test the principle and realization of mobile communication technology, and promotes the propagation of mobile communication knowledge. This system's characteristic is high openness, bread knowledge, and easy re-development. System's control module takes the MSP430 monolithic integrated circuit as the core, and it is easy for student to modify its control procedure, and do kinds of experiment. In the signal change obvious place, there are many test points for student to observe signal by oscilloscopes. In addition, the system retained many external interfaces and the debugging port, as the re-development preparation.The system involves rich aspect of knowledge. It covers the voice compression technology, the line codec technology, the ASIC logic and sequential control technology, the CDMA coding technique, the digital modulation and demodulation technique, the monolithic integrated circuit control technology, as well as RF transceiver technology. This article introduced mobile communication basic principle knowledge's, and divided the system into several modules, so as to let the application of mobile communication technology more specifically and clearly. In addition, this article also introduced some code principle, basic theory, as well as mainstream application direction of mobile communication technology in present stage.The article not only introduced basic principles and realization of the mobile communication experiment system's, moreover designed many experiment contents and proposed some new design method after refers many common experiment equipment in university laboratory.It is valuable for spreading the knowledge of mobile communication technology, especially for communication students in university.