Tetra Digital Trunking Communication System, Digital Terminal Software Design

The topic of this thesis is pre-research of TETRA digital trunked communication system design. I am responsible for algorithm learning and software design.Trunked communication system is an advanced mobile scheduling system. It is the developing trend of specific communication network meanwhile digital trunked communication is the developing trend of trunked communication. The real digital trunked system is digitalized all through and widely used with its advantages such as high utilizing rate, ability of anti-channel attenuation and easy to keep secret. ITU promotes 7 digital trunked communication systems. On September 28th, Information Industry Department issues promotional criterion of our country, which involves TETRA and iDEN systems.With the reform of information of military, the demands for military mobile communication are changed. Our force needs military individual mobile communication system urgently, which is based on the whole net motion. Integrate mobile communication system based on TETRA, absorbing the advantages of other systems, compatible with trunked communication system used at present, reforming by adaptive technologies, will be new generation group communication technology system.This thesis introduces the system technology of TETRA, and analyses the algorithm of signal source code and signal channel code. At the same time, algorithm is implemented the in software.This thesis involves 4 parts: 1) summarize of trunked mobile communication system; 2) TETRA digital trunked mobile communication system and technology; 3) introduction of hardware platform; 4) software implementation and analysis. The end of this paper is conclusion from the project and gives some suggestions for later work.