分数阶傅里叶变换对chirp信号进行解调 frft

这是一个用来用手机操控电脑上的ppt的一个源码，挺有意思的，可以用来做参考(thiao this is a android ffio fjdiofj fjia ofji afjifjidjifiroagjiorajpo)

苹果手机完美越狱软件 支持6.1 6.12(IPhone 6.1 jailbreak software support 6.12)

西门子通讯软件prodave测试程序，可直接高速读取s7300,200 系列plc数据，比opc方式实时性强很多(Siemens Communication Software prodave test program, high-speed read directly s7300, 200 series plc data, real-time than the way a lot stronger opc)

说明：  EEMD分解信号，可将信号分解为不同频率的固有模态分量，方便后续分析(EEMD decomposition signal)

matlab simulation for radar systems design

说明：  C++开发104协议，支持主从站。支持多客户端连接(C++ develops 104 protocol to support master and slave stations. Support multi-client connection)

所有有关DOA估计的程序和代码，相当于一个完整的工具箱(All programs and codes related to DOA estimation are equivalent to a complete toolbox.)

说明：  基于和均方误差的MIMO中继联合预编码算法的误码率仿真(Error rate simulation of joint precoding algorithm for MIMO Relay Based on sum mean square error)

说明：  5. 在三条径的瑞利信道中，对于直接序列扩频： (1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法，接收机分别采用等均益合并、最大比合并。用Simulink进行仿真，画出比特信噪比与信道估计均方误差的关系曲线和比特信噪比与误码率的关系曲线。 (2) 设频率已经同步，请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法，用Simulink进行仿真，画出比特信噪比与捕获概率的关系曲线。 (3) 设时间已经同步，请设计DS-CDMA一种具体的频率同步方法，用Simulink进行仿真，画出比特信噪比与频率同步误差的关系曲线。(5. In three-path Rayleigh channel, for direct sequence spread spectrum: (1) please design a specific code division navigation aided channel estimation method for ds-cdma, and adopt equal-beneficial combination and maximum ratio combination for receivers respectively.Simulink is used to simulate and draw the relationship curve between bit SNR and channel estimation mean square error and the relationship curve between bit SNR and bit error rate. (2) assuming that the frequency has been synchronized, please design a specific single-stop sliding correlation time synchronization method ds-cdma, Simulink simulation, draw the relationship between the bit SNR and the acquisition probability curve. (3) if the time has been synchronized, please design a specific frequency synchronization method ds-cdma, Simulink simulation, draw the relationship between the bit SNR and frequency synchronization error curve.)

数字信号处理，利用matlab语言仿真，对信号进行滤波。(Digital signal processing, using MATLAB language simulation to filter the signal)