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% 第三章: 例 3.13: % w = [0:1:500]*pi/500; % 把[0, pi]轴分为501个点 X = exp(j*w) ./ (exp(j*w) - 0.9*ones(1,501)); magX = abs(X); angX = angle(X); subplot(2,1,1); plot(w/pi,magX); grid; axis([0,1,0,10]) x

% Chapter 8: Example 8.29 % Elliptic Bandpass Filter Design: % Use of the ELLIP function % % 第八章: 例 8.29 % 椭圆带通滤波器设计 % ELLIP函数的应用 % % 数字低

% 第八章: 例 8.28 % 切比雪夫-1高通滤波器设计 % CHEBY1函数的应用 % % 数字低通滤波器指标: % 切比雪夫-1型高通: ws = 0.4586*pi; % 数字阻带边缘频率 wp = 0.6*pi;

% 第八章: 例 8.30 % 切比雪夫-2带阻滤波器设计 % CHEBY2函数的应用 % % 数字低通滤波器指标: % 切比雪夫-2型带阻: ws = [0.4*pi 0.7*pi]; % 数字阻带边缘频率 wp = [0.25*pi 0.8*pi];

% 第四章: 例 4.4: % 用 ztrans 求 X(z) % x(n) = (n-2)(0.5)^(n-2)cos[pi*(n-2)/3]u(n-2) x = 'n*((0.5)^n)*cos(pi*n/3)'; X = ztrans(x); [nX,dX] = numden(X); nX=expand(nX) dX = symmul(dX,'z^2'); dX=exp

% 第四章: 例4.11: % z-平面函数: % a) b = [1,0]; a = [1, -0.9]; pzplotz(b,a); title('极点-零点图'); text(0.85,-0.1,'0.9');text(0.01,-0.1,'0');pause, print -deps fg0407.eps % b) [H,w]=freqz(b,a,100); magH

% 第四章: 例4.13: % z-平面函数: % b) b = [1,0,-1]; a = [1,0,-0.81]; [R,p,C] = residuez(b,a); % d) w = [0:500]*pi/500; [H]=freqz(b,a,w); magH = abs(H);phaH = angle(H); subplot(2,1,1),plot(w/pi,magH)

REM COPY and RENAME Monitor Files REM REM set name of target system to "KC161RI+PI" COPY abstract.txt "..\Phytec KC161RI+PI.TXT" COPY boot167 "..\Phytec KC161RI+PI.BOT" COPY monitor "..

/* * Copyright (c) 1999-2000 Image Power, Inc. and the University of * British Columbia. * Copyright (c) 2001-2003 Michael David Adams. * All rights reserved. */ /* __START_OF_JASPER_LICENSE__

%微积分例1:一元函数求导（diff,gradient) clear;close; x=-2*pi:0.1:2*pi; y=sin(x); dy=diff(y)./diff(x); plot(x,y,x(1:length(x)-1),dy); hold on; yx =gradient(y,x); plot(x,yx,'ro');