61549844cs_exam

OFDM系统，调制方式QPSK，查看星座图，分析误码率(OFDM systems, modulation QPSK, view the constellations, the bit error rate analysis)

2X2 MIMO系统使用ML（最大似然）接受。（验证可用）(2X2 MIMO system using the ML (maximum likelihood) to accept. (Verification can be used))

the algorithm of cross validation

说明：  通用Matlab求出：两个圆的交点坐标(不用solve语句)(Using MatLab program to get the intersection of two circle.)

粒子群优化算法求解贷款方面的程序，供大家参考(Particle swarm optimization algorithm lending program, for your reference)

模极大程序，小波模极大程序。模极大程序，小波模极大程序模极大程序，小波模极大程序模极大程序，小波模极大程序(Modulus maxima procedure, wavelet modulus maxima procedures modulus maxima procedure on modulus maxima of wavelet modulus maxima procedure, wavelet modulus great program)

基于matlab的咬尾卷积码，对数据进行编码，再利用维特比译码的方式进行解码，大学课程设计内容。(Based on matlab tail biting convolutional codes, to encode the data, and then use the Viterbi decoding the way to decode the University curriculum content. )

说明：  metropolis-Hastings samplermetropolis-Hastings抽样的matlab实现(metropolis-Hastings samplermetropolis-Hastings in matlab)

非线性系统的模型阶次辨识+模型系统辨识，非常有效(Model order nonlinear system identification+ model system identification, is very effective)

说明：  SAR 信号处理中常用的带频移的傅里叶变换函数，可以直接对信号进行处理(SAR fft transform with fftshift)