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資源簡介

matlab實現的利用backstepping算法設計的移動機器人軌跡跟蹤控制器,有四種軌跡,分別是直線、圓、橢圓和不規則軌跡。

資源截圖

代碼片段和文件信息

t=0:0.1:100;
n=length(t);
a=1;b=1.5;
l=0.2005;
r=0.097;
e=[];
u=[];
se=[];
se(1)=pi*3/4;
k1=0.01;k2=0.01;ky=1.5;ks=15.2;
ser=[];vc=[];
x=[];y=[];xe=[];ye=[];see=[];
x(1)=1.2;y(1)=0.8;
w=[];w(1)=0.3;
v=[];v(1)=0.4;
xr=[];yr=[];yr(1)=0;xr(1)=1;ser(1)=pi/2;
p=[];seo=[];
for?i=1:n
????vc=2.5-2*i*0.1/(0.1*i+5);wc=1+0.2*i/(0.1*i+5);
????vcd=-0.2*((0.1*i+5)^(-1))+0.02*i*((0.1*i+5)^(-2));
????wcd=0.2*((0.1*i+5)^(-1))-0.02*i*((0.1*i+5)^(-2));rc=0.2;
????ser(i+1)=ser(i)+wc*0.1;
????xr(i+1)=xr(i)+0.1*vc*cos(ser(i+1));yr(i+1)=yr(i)+0.1*vc*sin(ser(i+1));
????se(i+1)=se(i)+0.1*w(i);
????x(i+1)=x(i)+0.1*v(i)*cos(se(i));
y(i+1)=y(i)+0.1*v(i)*sin(se(i));
e=[cos(se(i))*(xr(i)-x(i))+sin(se(i))*(yr(i)-y(i));
????-sin(se(i))*(xr(i)-x(i))+cos(se(i))*(yr(i)-y(i));
????ser(i)-se(i)];
xe(i)=e(1);ye(i)=e(2);see(i)=e(3);
jiaosd=wc+2*vc*ky*ye(i)*cos(see(i)/2)+ks*sin(see(i)/2);
yed=-(wc+2*ky*ye(i)*vc*cos(see(i))+ks*sin(see(i)/2))*xe(i)+vc*sin(see(i));
sed=-2*ky*ye(i)*vc*cos(see(i)/2)-ks*sin(see(i)/2);
jiaosdd=wcd+2*ky*(vc*yed+vcd*ye(i))*cos(see(i)/2)-ky*vc*ye(i)*sin(see(i)/2)*sed+0.5*ks*cos(see(i)/2)*sed;
xiansd=vc*cos(see(i))+k1*sin(atan(jiaosd))*jiaosd*xe(i)-k1*vc*sin(atan(jiaosd))*sin(see(i))+k2*(xe(i)-k1*sin(atan(jiaosd))*ye(i))-k1*cos(atan(jiaosd))*(1/(1+jiaosd^2))*jiaosdd*ye(i);
w(i+1)=jiaosd;v(i+1)=xiansd;
end
figure;
plot(x(1:1000)y(1:1000)‘:k‘);
hold?on;
plot(xr(1:1000)yr(1:1000)‘r‘);h_xlabel=xlabel(‘x/m‘);h_ylabel=ylabel(‘y/m‘);h_legend=legend(‘實際軌跡‘‘期望軌跡‘2);legend?boxoff;
set(h_xlabel‘fontsize‘16);set(h_ylabel‘fontsize‘16);set(gca‘fontsize‘14);?set(h_legend‘fontsize‘18);
saveas(gcf‘renyiyi‘‘emf‘);
zuob1=(1:100)/10;
figure;plot(zuob1v(1:100)‘r‘);hold?on;?plot(zuob1w(1:100)‘g‘);
zuob=(1:1000);
figure;plot(zuob/10xr(1:1000)-x(1:1000)‘r‘);h_xlabel=xlabel(‘t/s‘);h_ylabel=ylabel(‘x_e/m?y_e/m?\theta_e/rad‘);hold?on;plot(zuob/10yr(1:1000)-y(1:1000)‘:k‘);hold?on;plot(zuob/10see(1:1000)+0.01‘--b‘);
h_legend=legend(‘x_e‘‘y_e‘‘\theta_e‘1);legend?boxoff;
set(h_xlabel‘fontsize‘16);set(h_ylabel‘fontsize‘16);set(gca‘fontsize‘14);set(h_legend‘fontsize‘18);?
saveas(gcf‘renyier‘‘emf‘);





?屬性????????????大小?????日期????時間???名稱
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?????文件??????15732??2013-12-19?00:10??trajectorytrack-backsteeping\3.jpg

?????文件??????18911??2013-12-19?00:10??trajectorytrack-backsteeping\4.jpg

?????文件??????37220??2013-12-06?14:50??trajectorytrack-backsteeping\renyier.emf

?????文件???????2193??2008-03-26?11:33??trajectorytrack-backsteeping\renyilj.m

?????文件??????26536??2013-12-06?14:50??trajectorytrack-backsteeping\renyiyi.emf

?????文件???????1523??2013-12-08?14:14??trajectorytrack-backsteeping\tuoyuan2lj.m

?????文件??????30092??2013-06-09?12:06??trajectorytrack-backsteeping\yuaner.emf

?????文件???????2085??2013-06-09?12:39??trajectorytrack-backsteeping\yuanljtest1.m

?????文件??????25284??2013-06-09?12:06??trajectorytrack-backsteeping\yuanyi.emf

?????文件??????30564??2013-12-09?16:47??trajectorytrack-backsteeping\zhier.emf

?????文件???????1992??2013-12-09?16:46??trajectorytrack-backsteeping\zhixianljtest1.m

?????文件??????21228??2013-12-09?16:47??trajectorytrack-backsteeping\zhiyi.emf

?????文件????????421??2012-05-29?08:07??trajectorytrack-backsteeping\新建文本文檔.txt

?????目錄??????????0??2014-03-03?23:43??trajectorytrack-backsteeping

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???????????????213781????????????????????14


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