| In recent years, software radio technology both in military and civil fields have been got more and more attention at home and abroad, research about software radio technology also got much attention, too. Software radio technology and software radio platform were studied deeply in this paper, modulated signal generated platform based on software radio platform put DSP as the core was realized, finally RS(204,188) coding algorithm was realized on the platform.The origin, definition and idea of software radio technology were studied at the beginning of this paper, the combination of software radio technology and DSP technology was analysized synthetically. Software radio technology applications and research situation of DSP software development were also studied. Then, modulated signal generated platform based on software radio platform put DSP chip TMS320DM6446 as the core was implemented, and the hardware test of the platform was done combined CCStudio v3.3 IDE and TDS560USB emulator. In order to debug the modulated signal generation platform, reconfiguration software of FPGA and debug software of software radio technology were developed using VC++6.0,based on this ground, software realization and debug work of modulated signal generated platform were finished. At the end of this paper, RS coding algorithm and its realization were studied. And coding work of RS code of DVB-T was done on modulated signal generated platform. The test result indicates that the modulated signal generated platform can complete the desired function, the design of the platform and the realization both hardware and software were successful. |
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