exam4_2

烟雾具有半透明性，本程序是基于小波变换的烟雾半透明性的仿真；代码+图片！(Smoke with the translucency, the procedure is based on the wavelet transform of the simulated smoke translucent code+ pictures!)

改算法描述CDMA系统的多用户检测，很详细(CDMA,MUD)

说明：  长周期光栅的仿真程序，计算反射谱与透射谱！(Long period grating)

ANSI input 5p1 implementation example

CoSaMP算法，在重构信号时，选取两倍稀疏度的原子来恢复原始信号，再删去一倍稀疏度的原子。(CoSaMP algorithm, in the reconstructed signal, select twice the atomic sparsity to recover the original signal, and then deleting the double sparsity of atoms.)

粒子群算法（PSO）优化BP神经网络，用来进行非线性的校正，效果良好(Particle swarm optimization (PSO) to optimize BP neural network, used for non-linear correction, to good effect)

说明：  BP，基于压缩传感的基追踪重建算法，能够较好实现压缩数据的还原(BP, the base track reconstruction algorithm based on compressed sensing)

This program is written to control two inverters MM420 of siemens using PLC s7300

说明：  Matlab神经网络算法中的BP神经网络算法在语音特征信号分类应用的源程序。(BP neural network algorithm in the Matlab neural network algorithm source signal classification applications in speech features.)

利用Matlab函数或者模块产生随机数据，经过16QAM数字调制，送入高斯白噪声信道；在接收端使用16QAM解调数据后，与信源数据进行误码率统计；分析误码率与信噪比的关系。(Have the random data using the Matlab function or the module, undergoes the 16QAM digital modulation, sends in the white gaussian noise channel After the receiving end uses the 16QAM demodulation data, carries on the error rate statistics with the source data Analysis error rate and signal-to-noise ratio relations. )