regress-137

扫频信号的产生，以及扫频信号的时频分析；(The generation of sweep frequency signal and the time frequency analysis of sweep signal;)

说明：  快衰落多输入多输出信道中，无信道状态信息的酉空时调制。属于信道发射和接收两端均无信道状态信息的非相干空时码。程序包含一个主程序和一个酉空时信号产生子程序，并给出误比特率。(Unitary space-time modulation without channel state information in fast fading MIMO channels. It belongs to the incoherent space-time code with no channel state information at both ends of the channel transmitting and receiving. The programs include a main program and a unitary space-time signal generation subroutine, and gives the bit error rate.)

比较完整的OFDM的仿真模型和源码,有比较完整的设计思路,可供学习(Relatively complete OFDM simulation model and the source code, there is a complete design ideas, to learn from)

OFDM+信道估计（DFT）单一文档，超级详细，对理解OFDM很有帮助，同时有助于了解如何对信道估计进行仿真(OFDM+ channel estimation (DFT) which is a single document, super-detailed, very helpful in understanding the OFDM ，at the same time help to understand how to channel estimation simulation)

北斗卫星接口文件 北斗卫星导航系统 空间信号接口控制文件 （测试版） (Beidou satellite interface file Beidou satellite navigation system space signal Interface Control Document (Beta))

说明：  SOCKET调试工具与压力测试小工具源代码 VS2008下测试通过，非常好用！(SOCKET debugging tools and stress testing tool for source code for VS2008 under a small test, very easy to use!)

水下扩频系统研究，本系统采用直接扩频序列方式，在有多径水声信道和无多径的水声信道进行研究比较(Underwater spread spectrum system, the system uses direct sequence spread-spectrum approach, in a number of Acoustic Channel Drive and non-multi-path acoustic channel for the study of comparative)

说明：  降低papr的pts算法的一种次优化算法。(reduce the papr pts a meeting algorithm optimization algorithm.)

说明：  OFDM的matlab注水算法编程算法。经典注水算法。用于频率资源分配。(OFDM's Matlab water injection algorithm programming algorithm. Classic water injection algorithm. It is used for the allocation of frequency resources.)

混合预编码的数字预编码矩阵和模拟预编码矩阵的代码(mm-wave hybrid precode.including bd precode and analog precode)