PCA

现代通信系统（实用MATLAB)第四章程序(Modern communication systems (useful MATLAB) Chapter IV procedures)

一款简单的原创M脚本，通过帧直接识别视频中的车流量，使车流量数据的统计更加便捷。(A simple M original script by frame directly identify the video traffic, data traffic statistics to make more convenient.)

二维波动方程的有限差分法，与解析解进行了误差比对(Finite difference method for two-dimensional wave equation)

LTE下行链路空分复用闭环。仿真配置：16QAM调制、1/3码率Turbo编码、10MHz带宽、每个子帧一个PDCCH符号、单码字，8次迭代Turbo译码、早期终止机制、MMSE（最小均方误差）MIMO接收器，PDSCH发射端进行空分复用预编码。信道模型是LTE-MIMO信道附加AWGN信道。(LTE downlink closed loop space division multiplexing. Simulation Configuration: 16QAM modulation, 1/3 rate Turbo code, 10MHz of bandwidth, one PDCCH per subframe symbol, single code word, 8 Turbo decoding iterations, early termination mechanisms, the MMSE (minimum mean square error) the MIMO receivers, PDSCH transmitting terminal space division multiplexing precoding. Channel model is LTE-MIMO channel additional AWGN.)

说明：  BPSK原理仿真，采用的是相干解调和非相干解调(BPSK principle simulation, using coherent detection and non-coherent demodulation)

Frequency-resolved optical gating

基于公交上下客的客流OD矩阵推算，与参考文献所推数据完全一致。代码完全独创，实用价值高。(Transit OD Matrix estimation based on Passenger boarding and alighting. )

卷积码（2，1，3）编译码matlab程序，简单易懂(Convolutional code (2,1,3) codec matlab)

先进pid参数整定，包含各种用于pid参数整定的算法(Advanced pid parameter tuning)

矢量拟合算法,可将测试数据或者仿真数据，若S参数、Y参数等网络参数进行拟合得到极点-留数形式的有理式(Vector fitting)