Research And Realization Of Baseband Module For DMR Digital Terminal

Along with the advance of the community and the development of Radio telecommunication, traditional analog walkie-talkie can no longer meet the needs, and the walkie-talkie digitization already becomes one inexorable tendency.As the latest global open standard for digital radio which the Europe Telecommunication Standards Institute (ETSI) is developing on, compared with the two developed digital communication standards:TETRA and iDEN. DMR has the advantages of low cost and easier transition to digital radio.The digital walkie-talkie development survey and the characteristic of DMR Digital Trunking Standards are introduced in this paper first. And according to the development of the DMR digital walkie-talkie; taking the Digital Signal Process (TMS320VC5510) and Micro Controller Unit (Msp430) as the core chips, this paper introduces a baseband signal processing module which specialized apply to the DMR digital terminal. The hardware platform designing and debugging are presented in detail; Finally, the hardware platform and the RF module joint debugging, achieving the function of DMR digital terminal.