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.

FPGA实现滑动平均滤波算法和LZW压缩算法-my english is poor please see Chinese

使用FPGA实现快速副力叶变换,用于数据滤波,压缩和识别-with FPGA to realize the FFT algritum and to realize the filter,compress and recognition

FIR数字滤波，亲自测试，都是源码，希望可以帮到大家，谢谢，谢谢！大家要好好学习呀，学习好VHDL(FIR digital filter, personally tested, are source code, and I hope to help you, thank you, thank you! We should study hard, good study, VHDL)