convm

复旦大学matlab课程，Fourier transforms的代码以及教学课件(Fudan University matlab course, Fourier transforms of the code, and courseware)

CDMA transciver matlab code

实现分数阶傅里叶变换，可以用于LFM信号的时频分析。(Realizing Frft, which can be used to perform the time frequency analysis of the LFM signal.)

SVPWM仿真的matlab模块，仅供参考。(SVPWM simulation matlab module, for reference only.)

Program that implements echo watermarking. The basic idea is to embed a watermark by adding an echo to the original sample.

说明：  复杂网络BA模型matlab代码，返回网络图的邻接矩阵，代码中采用稀疏矩阵，极大地释放内存，提高效率。(BA model complex network matlab code, return to the network adjacency matrix, the code used in sparse matrix, which greatly release memory and improve efficiency.)

LDPC码校验矩阵声称函数，可以根据度分布生成相应的校验矩阵，适用于码长很长的LDPC.(LDPC check matrix function claims that can be generated in accordance with the corresponding distribution check matrix, for a very long code length LDPC.)

线性调频信号是一种雷达常用的电磁波信号，当雷达信号检测到目标时候，反射后得到雷达回波信号，此时由于多普勒效应，信号的频率发生偏移，这个源码仿真出雷达检测到目标加速度信息的回波信号。(LFM signal is a commonly used electromagnetic radar signal, when the radar signal detection to the target time, after reflection of radar echo signal, at this time due to Doppler effect, the signal)

一个ldpc码的寻找围长（girth）为10的程序(Ldpc code to find a girth (girth) of the program 10)

免疫方法来解决TSP问题，方法不错，程序有注释(Immunological methods to solve TSP problem by good procedure Notes)