Through the analysis of advantages of several GMSK arithmetic and requirement of system processing, the base-band time lag demodulating algorithm based on quadrature demodulation and TMS320VC5402 are selected for base-band processing.

• 通过分析GMSK几种算法的优越性以及系统对处理的需求，选择基于正交解调的基带时延检波算法以及TMS320VC5402进行基带处理。