MATLAB SIGNAL PROCESSING TOOLBOX 6 Manuel d'utilisateur télécharger pdf (Page 13)

Impulse, Step, and Ramp Functions

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Impulse, Step, and Ramp Functions

Since MATLAB is a programming language, an endless variety of different signals is

possible. Here are some statements that generate several commonly used sequences,

including the unit impulse, unit step, and unit ramp functions:

t = (0:0.001:1)';

imp = [1; zeros(99,1)]; % Impulse

unit_step = ones(100,1); % Step (with 0 initial cond.)

ramp_sig = t; % Ramp

quad_sig = t.^2; % Quadratic

sq_wave = square(4*pi*t); % Square wave with period 0.5

All of these sequences are column vectors. The last three inherit their shapes from t.

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MATLAB SIGNAL PROCESSING TOOLBOX 6 Manuel d'utilisateur Page 13