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Description: JJ测试仪采集数据函数格式为：
delphi:
function Readjj(i:Pchar p:Pchar):integer stdcall external Readjj.dll name Readjj
i:为酒精值
p:为结论-JJ tester data acquisition function format : delphi : function Readjj (i : Pchar p : Pchar) : integer stdcall external Readjj.dll name Readjj i : p value of alcohol : Conclusion
Platform: |
Size: 174150 |
Author: my |
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Description: JJ测试仪采集数据函数格式为：
delphi:
function Readjj(i:Pchar p:Pchar):integer stdcall external Readjj.dll name Readjj
i:为酒精值
p:为结论-JJ tester data acquisition function format : delphi : function Readjj (i : Pchar p : Pchar) : integer stdcall external Readjj.dll name Readjj i : p value of alcohol : Conclusion
Platform: |
Size: 174080 |
Author: my |
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Description: JeCat-Jabber(简称：JJ) 是一款完全由 PHP 开发的即时通讯软件。JJ 采用 Gtk2 图像界面库来实现用户界面。顾名思义 JJ 使用 Jabber 协议(XMPP) ，因此可以 和 包括 GTalk 在内的 其它任何 XMPP 即时通讯软件 聊天。-JeCat-Jabber (referred to as: JJ) is a complete PHP development by real-time communication software. JJ images Gtk2 interface library used to achieve the user interface. JJ As the name suggests the use of Jabber protocol (XMPP), and therefore can include any other GTalk and other XMPP instant messaging software to chat.
Platform: |
Size: 18649088 |
Author: 阿萨德 |
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Description: CORNACCHIA Algorithm
*
* GOAL: given d and p prime, find (x,y) such that x^2 + y^2 = d * p
*
* in this implementation, d = 1. This code does not accept d <> 1 !!!
* see "A Course in Computational Algebraic Number Theory" by Henri Cohen
* coded by malik@hammoutene.com, 2004,the 5th of August
you must install GMP
Platform: |
Size: 2048 |
Author: silkan |
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Description: MUSIC 算法MATLAB仿真源代码
clc
clear all
format long %将数据显示为长整型科学计数
N=200;%快拍数
doa=[20 60]/180*pi; %信号到达角
w=[pi/4 pi/3]';%信号频率
M=10;%阵元数
P=length(w); %信号个数
lambda=150;%波长
d=lambda/2;%阵元间距
snr=20;%信噪比
B=zeros(P,M); %创建一个P行M列的0矩阵
for k=1:P
B(k,:)=exp(-j*2*pi*d*sin(doa(k))/lambda*[0:M-1]); %矩阵赋值
end
B=B';
xx=2*exp(j*(w*[1:N])); %仿真信号
x=B*xx;
x=x+awgn(x,snr);%加入高斯白噪声
R=x*x'; %数据协方差矩阵
[U,V]=eig(R); %求R的特征值和特征向量
UU=U(:,1:M-P); %估计噪声子空间
theta=-90:0.5:90;
%%谱峰搜索
for ii=1:length(theta)
AA=zeros(1,length(M));
for jj=0:M-1
AA(1+jj)=exp(-j*2*jj*pi*d*sin(theta(ii)/180*pi)/lambda);
end
WW=AA*UU*UU'*AA';
Pmusic(ii)=abs(1/ WW);
end
Pmusic=10*log10(Pmusic/max(Pmusic)); %空间谱函数
plot(theta,Pmusic,'-k')
xlabel('角度 \theta/degree')
ylabel('谱函数P(\theta) /dB')
title('MUSIC算法的DOA估计谱')
grid on(MUSIC algorithm MATLAB simulation source code)
Platform: |
Size: 15360 |
Author: 冠华 |
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