monte_carlo_cs.m

雷达数据处理的重要模型算法之一

%Monte-Carlo仿真
clear,clc,close all
n=500;
%----------------
tic;
for kk=1:n
        
    cs;
    
   y(:,:,kk)=x;  
end
xx1=y;
time1=toc
%----------------
tic;
for kk=1:n
    

    cs1;
 

   y(:,:,kk)=x;  
end 
xx2=y;
time2=toc
%----------------
tic;
for kk=1:n
    
    cs2;  

   y(:,:,kk)=x;  
end 
xx3=y;
time3=toc
%----------------
tic;
for kk=1:n
    
    cs3;  

   y(:,:,kk)=x;  
end 
xx4=y;
time4=toc
%-------------------------------------------------------------
for i=1:length(z)
    ss1=0;
    ss2=0;
    ss3=0;
    ss4=0;
    for kk=1:n
        ss1=ss1+(xx1(1,i,kk)-X(1,i))^2;
        ss2=ss2+(xx1(2,i,kk)-X(2,i))^2;
        ss3=ss3+(xx1(4,i,kk)-X(4,i))^2;
        ss4=ss4+(xx1(5,i,kk)-X(5,i))^2;
    end
    RMSE_x1(i)=sqrt(ss1/n);
    RMSE_vx1(i)=sqrt(ss2/n);
    RMSE_y1(i)=sqrt(ss3/n);
    RMSE_vy1(i)=sqrt(ss4/n);
end

%-------------------------------------------------------------
for i=1:length(z)
    ss1=0;
    ss2=0;
    ss3=0;
    ss4=0;
    for kk=1:n
        ss1=ss1+(xx2(1,i,kk)-X(1,i))^2;
        ss2=ss2+(xx2(2,i,kk)-X(2,i))^2;
        ss3=ss3+(xx2(4,i,kk)-X(4,i))^2;
        ss4=ss4+(xx2(5,i,kk)-X(5,i))^2;
    end
    RMSE_x2(i)=sqrt(ss1/n);
    RMSE_vx2(i)=sqrt(ss2/n);
    RMSE_y2(i)=sqrt(ss3/n);
    RMSE_vy2(i)=sqrt(ss4/n);
end
%-------------------------------------------------------------
for i=1:length(z)
    ss1=0;
    ss2=0;
    ss3=0;
    ss4=0;
    for kk=1:n
        ss1=ss1+(xx3(1,i,kk)-X(1,i))^2;
        ss2=ss2+(xx3(2,i,kk)-X(2,i))^2;
        ss3=ss3+(xx3(4,i,kk)-X(4,i))^2;
        ss4=ss4+(xx3(5,i,kk)-X(5,i))^2;
    end
    RMSE_x3(i)=sqrt(ss1/n);
    RMSE_vx3(i)=sqrt(ss2/n);
    RMSE_y3(i)=sqrt(ss3/n);
    RMSE_vy3(i)=sqrt(ss4/n);
end
%-------------------------------------------------------------
for i=1:length(z)
    ss1=0;
    ss2=0;
    ss3=0;
    ss4=0;
    for kk=1:n
        ss1=ss1+(xx4(1,i,kk)-X(1,i))^2;
        ss2=ss2+(xx4(2,i,kk)-X(2,i))^2;
        ss3=ss3+(xx4(4,i,kk)-X(4,i))^2;
        ss4=ss4+(xx4(5,i,kk)-X(5,i))^2;
    end
    RMSE_x4(i)=sqrt(ss1/n);
    RMSE_vx4(i)=sqrt(ss2/n);
    RMSE_y4(i)=sqrt(ss3/n);
    RMSE_vy4(i)=sqrt(ss4/n);
end
clear ss1 ss2 ss3 ss4;
%-------------------------------------------------------------
t=1:length(z);

figure(1) ;
plot(t*T,RMSE_x1,'k*-',t*T,RMSE_x2,'ko-',t*T,RMSE_x3,'k:',t*T,RMSE_x4,'k');
xlabel('跟踪时间（秒）');
ylabel('位移误差（米）');
title('x轴位移均方误差');
legend('a=1/40,a^+=40,a^-=-40','a=1/40,a^+=100,a^-=-100','a=1/150,a^+=40,a^-=-40','a=1/150,a^+=120,a^-=-120');

figure(2) ;
plot(t*T,RMSE_vx1,'k*-',t*T,RMSE_vx2,'ko-',t*T,RMSE_vx3,'k:',t*T,RMSE_vx4,'k');
ylabel('速度误差（米/秒）');
xlabel('跟踪时间（秒）');
title('X轴速度均方误差');
legend('a=1/40,a^+=40,a^-=-40','a=1/40,a^+=100,a^-=-100','a=1/150,a^+=40,a^-=-40','a=1/150,a^+=120,a^-=-120');

figure(3) ;
plot(t*T,RMSE_y1,'k*-',t*T,RMSE_y2,'ko-',t*T,RMSE_y3,'k:',t*T,RMSE_y4,'k');
xlabel('跟踪时间（秒）');
ylabel('位移误差（米）');
title('y轴位移均方误差');
legend('a=1/40,a^+=40,a^-=-40','a=1/40,a^+=100,a^-=-100','a=1/150,a^+=40,a^-=-40','a=1/150,a^+=120,a^-=-120');

figure(4) ;
plot(t*T,RMSE_vy1,'k*-',t*T,RMSE_vy2,'ko-',t*T,RMSE_vy3,'k:',t*T,RMSE_vy4,'k');
ylabel('速度误差（米/秒）');
xlabel('跟踪时间（秒）');
title('y轴速度均方误差');
legend('a=1/40,a^+=40,a^-=-40','a=1/40,a^+=100,a^-=-100','a=1/150,a^+=40,a^-=-40','a=1/150,a^+=120,a^-=-120');