基于FPGA的扩频接收机（直扩）vhdl编写的，最好在quartus环境运行。-FPGA-based spread spectrum receiver (DS) vhdl prepared, the best environment to run in quartus.

基于FPGA的直扩调制解调器的设计与实现，挺好的！-DS FPGA-based modem design and implementation, good!

直序扩频通信发送部分的源代码，用verilog编的，包括信源模块、扩频模块、极性变换模块和DDS调制模块-Direct sequence spread spectrum communication sent part of the source code, compiled with verilog source modules, spread spectrum modules, polarity transform module and DDS modulation module