10285713

计算非平稳随机信号的WVD时频谱的matlab程序(Calculation of non-stationary random signal WVD time-frequency spectrum of the matlab program)

极化码matlab仿真程序,包含各种译码方法（sc译码,scl译码，crc校验scl译码）(matlab simulation of polar codes)

可以产出LDPC_802.16e码字，不同码长不同码率(creat LDPC_802.16e ldpc code)

communication related file

costas环解调程序，需要的可以参考一下。costas环解调.m(It is a matlab code for demodulation as costas ring .if you are interested in it, you can refer to it.)

一个从MSDN的scribble改进的程序,可以画直线,矩形及椭圆,对于学习图像处理是个很好的入门()

实现雷达的恒虚警检测，采用的是CA-CFAR，内有部分注释(The CFAR detection of radar is implemented by CA-CFAR.)

说明：  6. 在三条径的瑞利信道中，对于OFDM： (1) 请设计一种具体的导引辅助的信道估计方法，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) 设频率已同步，请设计OFDM一种具体的采用循环前缀进行时间同步方法，用Simulink进行仿真，画出比特信噪比与捕获概率的关系曲线。 (3) 设时间已同步，请设计OFDM一种具体的采用循环前缀进行频率同步方法，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。(6. In the three-path Rayleigh channel, for OFDM: (1) please design a specific navigation-assisted channel estimation method and use Simulink for simulation.The relation curves of bit signal-noise ratio and channel estimation mean square error and the relation curves of bit signal-noise ratio and bit error rate are drawn. (2) if the frequency has been synchronized, please design a specific method of time synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit-snr and acquisition probability. (3) if time has been synchronized, please design a specific method of frequency synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit signal-to-noise ratio and frequency synchronization error.)

说明：  Modbus协议中文版，比较完善，仅供学习参考(Chinese version of Modbus Protoco)

qpsk突发调制，完美实现qpsk，使用方便，简介，完美运行(qpsk burst modulation, the perfect realization of qpsk, easy to use, Profile, perfect running)