资源简介
lqr轨迹跟踪的matlab编程,是通过lqr控制器控制,走出一条直线或者圆轨迹
代码片段和文件信息
% long=20
% lati=50
%
% A=[-1.4934 0; 0 -0.3038];
% B=[0;0.0012];
% C=[0 1];
% D=[0];
% E=[00.8];
% N=100;
% Ahat=[A zeros(21) zeros(21);-C 0 0;-E 0 0];
% Bhat=[B;0;0];
% Q=[100 0 0 0;0 1 0 0;0 0 1 0;0 0 0 1 ];
% R=[0.01];
% KK=lqr(AhatBhatQR)
%
% K1=[KK(1)KK(2)];
% K2=-KK(3);
% K3=-KK(4);
% for i=1:N;
% du=-0.7383*x1(i)+0.5565;
% x1(i+1)=x1(i)+du;
% e(i)=exhead-head(i);
% n(i)=15*e(i)-K1*[x2(i);x3(i)];
%
% d=A*[x2(i);x3(i)]+B*n(i);
% x2(i+1)=x2(i)+d(1);
% x3(i+1)=x3(i)+d(2);
% head(i+1)=head(i)+x3(i+1)*1;
% u(i+1)=x1(i)*cos(head(i))-x2(i)*sin(head(i));
% v(i+1)=x1(i)*sin(head(i))+x2(i)*cos(head(i));
% long(i+1)=long(i)+v(i+1)*1;
% lati(i+1)=lati(i)+u(i+1)*1;
% end
%
% figure
% plot(longlati)
% figure
% plot(x1)
% figure
% plot(x2)
% figure
% plot(x3)
% figure
% plot(head)
% figure
% plot(n)
% tic
% 2*6/8*4*6*1/5*7*2^5/3^3
% toc
%%%%%%%%%%%%%%%%%%%90°直线跟踪%%%%%%%%%%%%%%%%
% x1=0;
% x2=0;
% x3=0;
%
%
% n=0;%初始转速差
%
% long=20;
% lati=10;%初始位置
% head=0;%当前航向
% exhead=pi/2;%期望航向
%
% K1=[0 31.1923];
% K2=10;
% K3=0.4;
%
% for i=1:300;
% du=-0.7383*x1(i)+0.5565;
% x1(i+1)=x1(i)+du;
% e(i)=exhead-head(i);
% n(i)=K3*(lati(i))+K2*e(i)-K1*[x2(i);x3(i)];
%
% d=A*[x2(i);x3(i)]+B*n(i);
% x2(i+1)=x2(i)+d(1);
% x3(i+1)=x3(i)+d(2);
% head(i+1)=head(i)+x3(i+1)*1;
% u(i+1)=x1(i)*cos(head(i))-x2(i)*sin(head(i));
% v(i+1)=x1(i)*sin(head(i))+x2(i)*cos(head(i));
% long(i+1)=long(i)+v(i+1)*1;
% lati(i+1)=lati(i)+u(i+1)*1;
% end
%
% figure
% plot(longlati)
% figure
% plot(n)
%%%%%%%%%%%%%%%%%%%坐标系中任意直线跟踪%%%%%%%%%%%%%%%%
xx0=20;
yy0=40;%初始位置
xx1=5;
yy1=5;%位点1
xx2=60;
yy2=60;%位点2
head=0;%初始航向
theta2=acosd(dot([xx2-xx1yy2-yy1][01])/(norm([xx2-xx1yy2-yy1])*norm([01])));%位点2与位点1连线与y轴夹角
exhead=theta2*pi/180;
x1=0;
x2=0;
x3=0;
n=0;
% KK=[5.9583 2.6656 -0.0293];%Q=[1 0 0;0 1 0;0 0 0.01]R=0.1
KK=[6.1597 2.5177 -0.2769];%Q=[1 0 0;0 1 0;0 0 0.1]R=0.1
% KK=[6.0497 2.5970 -0.1428];%Q=[1 0 0;0 1 0;0 0 0.05]R=0.1
K1=KK(1);
K2=KK(2);
K3=KK(3);
% A=[-1.4934 0; 0 -0.3038];
% B=[0;0.0012];
A=[0.7037 0 0;0.8432 1 0;-0.9
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