陈氏超混沌系统相图(该系统由陈关荣提出,故命名:Chen’s hyperchaos)
建立函数:
function dydt=HyChen(t,y)
global a b c d r
a=35; b=3; c=12; d=7; r=0.58;%input('r=');
dydt=[a*y(2,:)-a*y(1,:)+y(4,:)
d*y(1,:)+c*y(2,:)-y(1,:)*y(3,:)
y(1,:)*y(2,:)-b*y(3,:)
y(2,:)*y(3,:)+r*y(4,:)
];
建立文件:
y0=[-4 -3 5 -6];
x0=0; %起始时间点
xf=200;%终止时间点
[t,ym]=ode45('HyChen',x0:0.001:xf,y0);
figure(1)
subplot(221)
plot(ym(:,1),ym(:,2));
grid on
xlabel('y1');ylabel('y2');
subplot(222)
plot(ym(:,1),ym(:,3));
grid on
xlabel('y1');ylabel('y3');
subplot(223)
plot(ym(:,1),ym(:,4));
grid on
xlabel('y1');ylabel('y4');
subplot(224)
plot(ym(:,2),ym(:,3));
grid on
xlabel('y2');ylabel('y3');
figure(2)
subplot(221)
plot(ym(:,2),ym(:,4));
grid on
xlabel('y2');ylabel('y4');
subplot(222)
plot(ym(:,3),ym(:,4));
grid on
xlabel('y3');ylabel('y4');
subplot(223)
plot3(ym(:,1),ym(:,2),ym(:,3));
grid on
xlabel('y1');ylabel('y2');zlabel('y3')
subplot(224)
plot3(ym(:,1),ym(:,2),ym(:,4));
grid on
xlabel('y1');ylabel('y2');zlabel('y4')
显示图像:
![](https://img.laitimes.com/img/_0nNw4CM6IyYiwiM6ICdiwiI0gTMx81dsQWZ4lmZf1GLlpXazVmcvwFciV2dsQXYtJ3bm9CX9s2RkBnVHFmb1clWvB3MaVnRtp1XlBXe0xCMy81dvRWYoNHLwEzX5xCMx8FesU2cfdGLwMzX0xiRGZkRGZ0Xy9GbvNGLpZTY1EmMZVDUSFTU4VFRR9Fd4VGdsYTMfVmepNHLrJXYtJXZ0F2dvwVZnFWbp1zczV2YvJHctM3cv1Ce-cGcq5SO3QDM1UWO5QWZxkjMkljZyYzX3UDO1ITM1EzLchDMyIDMy8CXn9Gbi9CXzV2Zh1WavwVbvNmLvR3YxUjLyM3Lc9CX6MHc0RHaiojIsJye.jpg)