jiefangcheng

Calling Windows APIs without declaration, full Visual Basic source code example.

《最优阵列处理》一书第六章的MATLAB例程，包括各种最优波束形成算法的仿真。(" Optimal array processing," the sixth chapter of a book of MATLAB routines, including the optimal beamforming simulation algorithm.)

QPSK仿真，误码率计算及其仿真结果的比较(QPSK )

相控阵技术广泛应用于雷达、导航、声呐等领域，该文件为matlab及HFSS对相控阵的仿真，很经典(Phased array technology is widely used in radar, navigation, sonar and other fields, the file is matlab and HFSS simulation for phased array, classic)

matlab2009和2010从入门到精通的好教材(matlab 2009 and 2010 from entry to the proficient good material)

距离函数用matlab实现的距离函数用matlab实现的(Distance function using matlab matlab realize the distance function)

顾比移动平均线组合，用于MT4操作平台中的交易工具(Care than the combination of moving average for the MT4 trading platform in the tool)

说明：  一个自动发现某年和另外一年的星期全部相同的程序。。。功能很强大 可以下载看看(An auto-discovery a year and another week of the year all the same procedures. . . Very powerful to see available for download)

basic image processing

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)