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4a的信道模型，中低速率不可少的工具信道，其中MATLAB已将信道分析，使用时将绘图程序稍加改动便可使用，祝愿你使用愉快

建立正交频分多路复用(OFDM)系统调制器的仿真模型，并编程给出具有K=10个子信道、符号区间T=100s、采用16点QAM信号时，OFDM系统调制器的输出信号。(The establishment of orthogonal frequency division multiplexing (OFDM) system, the simulation model of the modulator and the program is given with K = 10 Ge sub-channel, symbol interval T = 100s, with 16-point QAM signal, OFDM system, the modulator output signal .)

一些常用的matlab程序，对于入门学者有很大的帮助，每一个程序均有详细的说明(Some commonly used matlab program for entry scholar of great help, every program has a detailed description)

I have to write a Navier-Stokes solver for a 2-D Lid Driven Cavity. My teacher gave me a portion of his code (the Poisson pressure solver and some I.C. s and B.C. s) and I have to fill in the blanks. I ve been using

一种对角牛顿法来求解非负稀疏编码问题，在原有的NNSC的算法上的进一步改进(Kind of angle Newton' s method to solve the problem of non-negative sparse coding, further improvements in the original NNSC algorithm)

说明：  基于负熵的盲源分离算法，可以用于语音的盲分离，提高语音信号质量。本代码中，对原始信号分别为正弦波，方波，和随机信号，通过高斯信道的混合矩阵，获得接收信号，并通过基于负熵的盲源分离算法分理处原始信号。PS：Matlab版本为2018Ra(The blind source separation algorithm based on negative entropy can be used for speech blind separation and improve the quality of speech signal. In this code, for the original signal, sine wave, square wave and random signal, the received signal is obtained through the mixture matrix of the Gauss channel, and the original signal is processed by the blind source separation algorithm based on negative entropy. PS: MATLAB Version 2018Ra)

现在通信系统中信号通过衰落信号引起的多普勒扩展程序(Now the signal communication system caused by the decline of the Doppler signal extender)

bpsk 调制方法及电路图 系统设计方案(Binary Phase Shift Keying)

滚动轴承内外圈故障仿真信号MATLAB程序实现(MATLAB fault simulation signal bearing program)

估计样本序列的自相关函数，并比较SBT，SMVDR，SAR，SMuisc，画出各估计结果 (The estimated autocorrelation function of the sample sequence, and compare the SBT, SMVDR, SAR, SMuisc, draw the estimated results)