用MATLAB仿真的数字下变频程序，变频，滤波未用matlab函数，而是用代码完成，便于移到DSP或FPGA上。供参考。-Using MATLAB simulation of digital down conversion process, conversion, filtering is not used matlab functions, but with code completion, easier to move on a DSP or FPGA. For reference.

matlab simulink 开发的CDMA2K DDC数字下变频器和滤波器，使用XILINX FPGA V5系列，并包含DDC每个阶段的输出验证matlab程序，非常实用。-matlab simulink developed CDMA2K DDC digital down converter and filter, using the XILINX FPGA V5 series, and contains the output of each stage of verification DD