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    發布日期: 2021-06-15
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資源簡介

基于擴展卡爾曼濾波的室內定位方法,多源信息融合課程報告,附帶程序和數據。

資源截圖

代碼片段和文件信息

%%
%分布式融合檢測
%一共兩步聲納,在H0處為均值為零,方差為一的高斯分布,sigma1=sigma2=1;
%u1=1.8;
%u2=2.2;
%f(x)=exp(-(x-ui).^2/2)/sqrt(2*pi);
%norminv為求-Inf到x的高斯分布的概率

%P(ui=1|H1)=Pdi
%P(ui=0|H0)=1-Pfi;


%%
clear?all;
clc;

%檢測器一
figure;
u1=1.8;
d1=u1.^2;
u2=2.2;
d2=u2.^2;
u=(u1+u2)/2;
d=u.^2;

count=1;
Pd1=zeros(101);
Pd2=zeros(101);
Pdf=zeros(101);
for?Pf=0.00001:0.025:1
????Pf
????Vt=0-norminv(Pf01);
????y21=sqrt(d1)-Vt;
????y22=sqrt(d2)-Vt;
????Vt1=u1-y21;
????Vt2=u2-y22;
????syms?x;
????f(x)=exp(-(x-u1).^2/2)/sqrt(2*pi);
????Pd1(count1)=double(int(f(x)Vt1Inf));
????syms?x;
????g(x)=exp(-(x-u2).^2/2)/sqrt(2*pi);
????Pd2(count1)=double(int(g(x)Vt2Inf));
????
????%融合檢測概率
????%P0=(Pd2(count1)+Pf)*(Pd1(count1)+Pf)*Pf*Pf+(Pd1(count1)+Pf)*(2-Pd2(count1)-Pf)*Pf*(1-Pf)+(Pd2(count1)+Pf)*(2-Pd1(count1)-Pf)*Pf*(1-Pf)+(2-Pd1(count1)-Pf)*(2-Pd2(count1)-Pf)*(1-Pf)*(1-Pf);
????%P1=(Pd2(count1)+Pf)*(Pd1(count1)+Pf)*Pd2(count1)*Pd1(count1)+(Pd1(count1)+Pf)*(2-Pd2(count1)-Pf)*Pd1(count1)*(1-Pd2(count1))+(Pd2(count1)+Pf)*(2-Pd1(count1)-Pf)*Pd2(count1)*(1-Pd1(count1))+(2-Pd1(count1)-Pf)*(2-Pd2(count1)-Pf)*(1-Pd1(count1))*(1-Pd2(count1));
????P1=1-(1-Pd1(count1))*(1-Pd2(count1));
%?????P0=Pf.^2;
%?????P1=Pd1(count1)*Pd2(count1);
%?????P1/P0
????Pdf(count1)=P1;
????count=count+1;
end
plot(0.00001:0.025:1Pd1(:1)‘r‘);
hold?on;
plot(0.00001:0.025:1Pd2(:1)‘b‘);
hold?on;
plot(0.00001:0.025:1Pdf(:1)‘k‘);
hold?off;

title(‘固定虛警概率的檢測融合曲線效果圖‘);
xlabel(‘Pf‘);
ylabel(‘Pd‘);
legend(‘檢測器一曲線‘‘檢測器二曲線‘‘并行分布式融合曲線‘);

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-05-22?10:04??多元信息融合實驗\
?????文件????????1680??2017-01-06?11:17??多元信息融合實驗\distributed_detection_fusion.m
?????文件???????28577??2016-11-21?20:43??多元信息融合實驗\location.txt
?????文件???????15823??2015-09-06?22:40??多元信息融合實驗\locationv3.txt
?????文件????????4129??2017-01-06?15:48??多元信息融合實驗\robotic_fusion.m
?????文件??????335756??2018-05-22?10:04??多元信息融合實驗\多元信息融合報告-擴展卡爾曼濾波.docx

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