Research on the Realization of Software Radio Communication Modulator

In this paper,the concept and modulation model of software radio are discussed,and a realization method of the software radio hardware digital modulation platform based on the current DSP technology is also proposed.In this method,modulation is realized at based band.After D/A conversion and orthogonal analog up-conversion,the software radio signal can be got.The methods of realizing some digital modulation algorithms on the platform are also proposed in this paper.The experimental results show that the proposed platform is effectively practical.