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function [xm,xf,xp]=modsig(ty,x,c,k) % MODSIG Generate AM, FM and PM signals. % % [XM,XP,XF] = MODSIG(TY,X,C,K) returns the modulated signal in XM % FOR 'pm' and 'fm' ONLY: XP

function Y = si2(x,a) % SI2 Integral of [sin(at)/(at)]^2 . % % Y = SI2(X,A) Computes integral of [sin(At)/(At)]^2 over [0, X] % % SI2 (with no input arguments) invokes the following example:

switch get (wq1 ,'Value') case 1 subplot(1,1,1); Wp = 0.2*pi; Ws = 0.3*pi; Rp = 7; As = 16; [b,a] = afd_butt(Wp,Ws,Rp,As); [C,B,A] = sdir2cas(b,a) [db,mag,pha,w] = freqs_m(b,a,0.5*pi); subpl

wp = 0.2*pi; ws = 0.3*pi; Rp = 1; As = 15; T = 1; Fs = 1/T; OmegaP = (2/T)*tan(wp/2); OmegaS = (2/T)*tan(ws/2); [cs,ds] = afd_chb2(OmegaP,OmegaS,Rp,As); [b,a] = bilinear(cs,ds,Fs); [C,B,A] =

wp = 0.2*pi; ws = 0.3*pi; Rp = 1; As = 15; T = 1; OmegaP = wp/T; OmegaS = ws/T; [cs,ds] = afd_butt(OmegaP,OmegaS,Rp,As); [b,a] = imp_invr(cs,ds,T); [C,B,A] = dir2par(b,a) [db,mage,pha,grd,w]

wp = 0.2*pi; ws = 0.3*pi; Rp = 1; As = 15; T = 1; Fs = T^(-1); OmegaP = (2/T)*tan(wp/2); OmegaS = (2/T)*tan(ws/2); [cs,ds] = afd_butt(OmegaP,OmegaS,Rp,As); [b,a] = bilinear(cs,ds,Fs); [C,B,A

wp = 0.2*pi; ws = 0.3*pi; Rp = 1; As = 15; T = 1; Fs = 1/T; OmegaP = (2/T)*tan(wp/2); OmegaS = (2/T)*tan(ws/2); [cs,ds] = afd_elip(OmegaP,OmegaS,Rp,As); [b,a] = bilinear(cs,ds,Fs); [C,B,A] =

wp = 0.2*pi; ws = 0.3*pi; Rp = 1; As = 15; T = 1; OmegaP = wp/T; OmegaS = ws/T; [cs,ds] = afd_chb2(OmegaP,OmegaS,Rp,As); [b,a] = imp_invr(cs,ds,T); [C,B,A] = dir2par(b,a) [db,mage,pha,grd,w]

h0=figure('position',[10 10 800 500],... 'name','频带变换'); wplp = 0.2*pi; wslp = 0.3*pi; Rp = 1; As = 15; T = 1; Fs = 1/T; OmegaP = (2/T)*tan(wplp/2); OmegaS = (2/T)*tan(wslp/2); [cs,ds] =

figure('position',[100 100 400 300],'name','music'); p1_string = {'1.数星星' '2.小蜜蜂' '3.两只老虎' '4.欢乐颂' }; n=1:2000; k=1:1000; m=1:4000; fs=8192; f