Radar-countermeasure-

此压缩包含有遗传算法工具箱函数集合，对遗传算法初学者有参考价值。(This compression genetic algorithm toolbox contains a collection function of the genetic algorithm beginners a valuable reference.)

Alamouti space time coding simulation Maximal Ratio Combining BER simulation

本文件包含大量的matlab命令，并附有简单的举例，方便查阅和学习…………(This document contains a lot of matlab command, together with a simple example, for easy access and learning ... ... ... ...)

用于地球物理中重力和磁力位场边界提取的几个常用的算法，包含数据处理，建模，和滤波。(Gravity and Magnetic Data Mapping, Processing, Modeling and Filtering Software.)

随机信号分析实验之白噪声测试，白噪声信号的特性，包括均值、方差、相关函数、概率密度、频谱及功率谱密度等。( White noise of test random signal analysis experiment, white noise signal characteristic, including average value , variance, correlation function, probability density, frequency spectrum and power spectral density and so on. )

To decode SIRC data when someone want to build some device remote control.

实现在网页上利用matlab画图,实现在网页上利用matlab画图(On a web page using matlab drawing)

说明：  直扩信号BPSK的仿真，采用异或移位的算法实现PN码达到扩频的目的(BPSK DS signal simulation, using different algorithms, or shift the PN code to achieve the purpose of spreading)

通过比较传统仅移相的波束与移相+理想延时的波束，来说明述S波段宽带阵列孔径渡越现象(To demonstrate the aperture effct of S_band windband array, this programe comparing the beam pattern of the traditional beamforming method "phase shifting only" with that of "phase shifting+ ideal delay".)

说明：   empirical formula with kaiser clc clear all fs=1000 fc=250 df=50 r=0.001 f=fc/fs dw=2*pi*(df/fs) a=-20*log(r) n=floor(((a-8)/(2.285*dw))+1) if a>50 b=0.1102*(a-8.7) elseif a>=21 && a<=50 b=0.5842*((a-21)^0.4)+0.07886*(a-21) elseif a<21 b=0.0 end w=kaiser(n,b) for i=1:n if i~=(n-1)/2 hd(i)= (2*f*sin((i-((n-1)/2))*2*pi*f))/((i-((n-1)/2))*2*pi*f) elseif i==(n-1)/2 hd(i)=2*f end end for j=1:n h(j)=w(j)*hd(j) end subplot(3,1,1), plot(w) subplot(3,1,2), plot(h) subplot(3,1,3), plot(h,n)