代码搜索结果

clear all; close all; clc; N=8; zpb=13.5; c=1500; f0=1500; fs=5000; nfft=512; A=2; d=0.4; n=1:nfft; w=2*pi*f0; s=zeros(N,nfft); y=[]; for x=-pi/2:pi/180:pi/2 tao=d*(sin(x)-sin(0))/

clear all; close all; clc; h0=0.01; beta=0.002070*10^(-8); loss=0.0173; density=1.3394; v=1.08; gam=3.25; c=1500; f=35000; lamda=c/f; k=2*pi/lamda; theta=(0:1:90)*pi/180; %Kirchhoff Appr

clear all; close all; clc; h0=0.01; beta=0.002070*10^(-8); loss=0.0153; density=1.1782; v=1.006; gam=3.25; c=1500; f=35000; lamda=c/f; k=2*pi/lamda; theta=(0:1:90)*pi/180; %Kirchhoff App

clear all; close all; clc; h0=0.01; beta=0.002070*10^(-8); loss=0.0087; density=1.15; v=0.989; gam=3.25; c=1500; f=35000; lamda=c/f; k=2*pi/lamda; theta=(0:1:90)*pi/180; %Kirchhoff Appro

clear clc subplot(2,2,1), fplot('humps',[0 1]) subplot(2,2,2), fplot('abs(exp(-j*x*(0:9))*ones(10,1))',[0 2*pi]) subplot(2,2,3), fplot('[tan(x),sin(x),cos(x)]',2*pi*[-1 1 -1 1]) subplot(2,2,4), f

n=0:35; m=0:63; T=1/64; x=cos(8*pi*n*T)+cos(16*pi*n*T)+cos(20*pi*n*T); close all subplot(2,1,1);stem(n,x); title('X6(t)的序列图形'); subplot(2,1,2); stem(m,abs(fft(x,64))) ;titl

n=0:16; m=0:15; a=cos((pi/4)*n); b=sin((pi/8)*n); c=a+b; g=fft(c,16); subplot(4,1,2); stem(m,abs(g)) ; title('X4(t)+X5(t)的序列16点的FFT'); d=real(g); e=imag(g); f=ifft(d); subplot

% k=-25:25; n=1:50; A=444.128; %设置信号有关的参数 a=50*sqrt(2.0)*pi; T=0.001; %采样率 w0=50*sqrt(2.0)*pi; %ω符号在MatLab中不能输入，用w代替 x=A*exp(-a*n*T).*sin(w0*n*T); %pi是MATL

n=0:50; A=1; a=0.4; w0=2.0734; T=1; x=A*exp(-a*n*T).*sin(w0*n*T); close all %清除已经绘制的x(n)图形 subplot(2,1,1);stem(x); %绘制x(n)的图形 title('理想采样信号序列'); k=-25:25; W=(pi/12.5)*

function huakuai(A,B,D,R0,DR,S0,N,E) x=0; while x==0 dr=DR/N; R=zeros(1,N+1);S=zeros(1,N+1);Q=zeros(1,N+1);V=zeros(1,N+1); for i=0:N R(i+1)=R0+i*dr; S(i+1)=A*(sin(R(i+1)*pi/180)-sin(R0*