BER_BD

例3：分析占空比为ta的矩形脉冲频谱 T=1 时间窗大小 ta=0.5 占空比 N=256 t=linspace(-T,T,N) ts=2*T/N fs=1/ts (x=zeros(1,N) x(N/2-round(N/2*ta):N/2+round(N/2*ta))=ones(1,2*round(N/2*ta)+1) y=fft(x,N) figure plot(t,x) title([ 时域信号图 占空比为 ,num2str(ta)]) axis([-T T-0.2 1.2]) xlabel( t /s ) figure subplot(211) f=linspace(-fs/2,fs/2,N) plot(f,abs(fftshift(y))/N) title([ 矩形脉冲双边谱 脉冲时间t=[- ,num2str(ta*T), , ,num2str(ta*T), ] ]) xlabel( f /Hz ) )

Smulink model for ASK

谱估计法分析随机信号，并对其进行傅里叶变换(Spectral analysis is a tool for signal analysis. Power spectrum estimation is based on limited data looking for signals, the frequency of random process or system components. It said random signal frequency-domain statistical characteristics, there is a clear physical meaning, is an important signal processing research content. Of random signals in the frequency domain, power distribution, that is the power spectral density or power spectrum. Power spectrum estimation has been widely used.)

Surfer是地学中常用的一个软件，可以完成等值线图，立体图，流向图等的汇制。其自带的类VBA的开发语言，可以进行二次开发。附件是一些源程序。其中的Jackknifes可以用来对比不同的内差方法，从而得出最优化的内差方法。 (Surfer is the study of a commonly used software, complete contour map, a three-dimensional map, map the flow of the system. Its built-in categories VBA programming languages that can be re-developed. Annex some source. Jackknifes which can be used for comparison within the poor, so as to come up with the most optimal way worse.)

智能微粒群为最小二乘支持向量机调参的示例程序（LSSVM+PSO）(Intelligent Particle Swarm and least squares support vector machine modeling(LSSVM+ PSO))

ar9341 openwrt package：modify mac

关于协作通信方面的放大转发、译码转发、编码协作的介绍，对学习协作通信非常有帮助。(About cooperative communications amplification forwarding, forwarding decoding encoded collaboration introduction learning collaborative communication is very helpful.)

实现了用burg法进行功率谱估计，并比较它的结果(Burg achieved by power spectrum estimation method, and compare its results)

MATLAB基础练习，适合初学者，画正弦波形，证明公式，设计简单滤波器等(MATLAB based exercises, suitable for beginners, painting sine to prove the formula, simple design, filters, etc.)

Commande vectoriel par mode glissant de la MSAP