MATLAB

Matlab关于微分方程的解法，这个介绍很经典的

给出了线性方程组的CG法、Gauss_Seidel、SOR、Jacobi、fem求解，(Linear equations given the CG method, Gauss_Seidel, SOR, Jacobi, fem solution)

this code for pr classroom code useful

a usefull algorithm to smooth PERIODOGRAM of a selected signal.

u率pcm编码,还有误差分析,通信原理实验的一个例子(u rate PCM coding, error analysis, communication principle of an experimental examples)

说明：  S 变换是 Stockwell（1996）等提出的一个时-频分析方法，它结合了短时 Fourier 变换和小波变换的特点，能够完全无损地实现逆变换。(S-transform is a time-frequency analysis method proposed by Stockwell (1996). It combines the characteristics of short-time Fourier transform and wavelet transform, and can realize inverse transform completely without loss.)

说明：  MATLAB进行汉明码的编码译码的实现和通信仿真(MATLAB for coding and decoding of hamming code implementation and communication simulation)

例4：在sinc(t)信号中叠加噪声，分析对应频谱 fs=100 采样频率,必须大于两倍基带信号最高频率 ts=1/fs 采样时间间隔 T=2 时间窗大小 ( x=x+0.1*randn(1,N) x=awgn(x,-10, measured ) figure plot(t,x) title( 时域信号图 ) xlabel( t /s ) y=fft(x,N) figure if mod(N,2)~=0 N=N-1 end f=linspace(0,fs/2,N/2) plot(f,abs(y(1:N/2))*2/N) title( 叠加噪声的sinc(t)信号频谱 ) xlabel( f /Hz ) figure y0=y(1:N/2) P=y0.*conj(y0)/N P=10*log10(P) plot(f,P) title( 功率谱 ) xlabel( f /Hz ) )

基于PCA主成分分析的混沌时间序列嵌入维求解算法(Based on PCA principal component analysis of chaotic time series embedding dimension algorithm)

无线合作分集网络中资源分配策略研究的论文(Cooperative diversity in wireless network resource allocation policy research papers)