信号与系统阶跃信号-冲激信号.docx

《信号与系统阶跃信号-冲激信号.docx》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、信号与系统作业班级:电气12-4姓名：江伟学号：12034470449评分1-6(1)[1+12sin⁡(Vt)]sin(8Vt)>>t=-8:0.01:8;>>f1=1+1/2*sin(t);>>f2=sin(8*t);>>y=f1.*f2;>>plot(t,y)(1)[1+sin(Vt)]sin(8t)>>t=-8:0.01:8;>>f1=1+sin(t);>>f2=sin(8*t);>>y=f1.*f2;>>plot(t,y)1-7(1)[ut-u(t-T)]sin(4πTt)>>t=-8:0.01:8;>>T=2;>>

2、f1=heaviside(t)-heaviside(t-T);>>f2=sin((4*pi*t)/2);>>y=f1.*f2;>>plot(t,y)(1)[u(t)-2u(t-T)+u(t-2T)]sin(4πTt)>>t=-8:0.01:8;>>T=2;>>f1=heaviside(t)-2*heaviside(t-T)-heaviside(t-2*T);>>f2=sin((4*pi*t)/2);>>y=f1.*f2;>>plot(t,y)1-8f(t)=e-atu(t)-e-a(t-t0)u(t-t0)>>t=-8:0.0

3、1:8;>>k=2;>>a=2;>>f1=exp(-a*t);>>f2=heasivide(t);>>f2=heaviside(t);>>f3=exp(-a*(t-k));>>f4=heaviside(t-k);>>y=f1.*f2-f3.*f4;>>plot(t,y)阶跃信号：>>t=-8:0.01:8;>>y=(t>=0);>>plot(t-2,y)>>clearall;t1=-0.5:0.001:0;A=50;A1=1/A;n1=length(t1);u1=zeros(1,n1);t2=0:0.001:A1;t0=0;u

4、2=A*stepfun(t2,t0);t3=A1:0.001:1;n3=length(t3);u3=zeros(1,n3);t=[t1t2t3];u=[u1u2u3];plot(t,u)axis([-0.510A+2])抽样信号>>%samplefunction>>t=-3*pi:pi/100:3*pi;>>y=sinc(t/pi);>>plot(t,y)>>>>t=0:0.001:4;>>T=1;>>y=rectpuls(t-2*T,2*T);>>plot(t,y);gridon;axis([04-0.51.5]);???E

5、rrorusing==>axis>LocSetLimitsVectormusthave4,6,or8elements.Errorin==>axisat96LocSetLimits(ax(j),cur_arg);