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Software radio technology in recent years, wireless communication is one of the hot areas of research . As communications technology from analog to digital fast conversion, and microelectronics, digital signal processing technology, the rapid development , more and more modern radio systems can be implemented by means of software , software radio technology emerged. After ten years of development, software radio frequency systems in residential and commercial applications almost become possible, but its application potential is far from played out. In this paper, software radio sending and receiving system platform technology to achieve the modulation method in depth research . Under the existing conditions proposed for practical experimental platform modulator gives a feasible implementation ; Finally, further research IF digital modulation signal processing algorithm based on the combination of the modulation used in mobile communication method , summed up the several more optimized frequency modulation algorithm implementation , given MATLAB simulation process , in order to further research can play a valuable role .
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