matlab printout full.pdf
Post on 25-Oct-2015
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Generate the following signals (assume f) and plot their frequency spectrum using DFT commands.
a) Square function b) Sine function c) Ramp function
Find the impulse response of a LTI system for given difference equationy(n) - y(n-1) + 0.9y(n+2) = x(n)
% Program to evaluate quadtratic equation:
clc; clear all; close all; a=input('Enter the value of a='); b=input('enter the value of b='); c=input('enter the value of c='); x(1)=(-b+sqrt(b*b-4*a*c))/(2*a); x(2)=(-b-sqrt(b*b-4*a*c))/(2*a); disp('The roots of quadratic equations are'); disp('x(1)='); disp(x(1)); disp('x(2)='); disp(x(2));
Result: Enter the value of a=4 Enter the value of b=6 Enter the value of c=2 The roots of quadratic equations are x(1)= -0.5000 x(2)= -1
%Program to calculate the trigonometric quantities: clc; clear all; close all; deg=input('Enter the value of theta in degree='); rad=deg*pi/180; cal_1=sin(rad/6); disp('The value of sin(deg/6) is ='); disp(cal_1); cal_2=cos(rad); disp('The value of cos(deg) is ='); disp(cal_2); cal_3=tan(rad/2); disp('The value of tan(deg/2) is ='); disp(cal_3); cal_4=[(sin(rad/6))^2+(cos(rad/6))^2]; disp('The value of (sin(rad/6))^2=(cos(rad/6))^2 is ='); disp(cal_4);
Result: Enter the value of theta in degree=60 The value of sin(deg/6) is = 0.1736 The value of cos(deg) is = 0.5000 The value of tan(deg/2) is = 0.5774 The value of (sin(rad/6))^2=(cos(rad/6))^2 is = 1.0000
Generate two sinusoids & compute their product. plot them in time & frequency domain (Fourier transform)
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