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reset

System object: dsp.SineWave
Package: dsp

Reset sine wave to the beginning

Syntax

reset(sine)

Description

reset(sine) resets the sine wave object to the beginning (n=0). If you invoke the step method without first invoking the reset method, the sine wave object generates additional samples of the original sinusoid.

Reset the SineWave Signal

Note: This example runs only in R2016b or later. If you are using an earlier release, replace each call to the function with the equivalent step syntax. For dsp.ColoredNoise System object™, myObject() becomes step(myObject). For all other objects, myObject(x) becomes step(myObject,x).

sine = dsp.SineWave('Amplitude',1,'Frequency',1/4,'SamplesPerFrame',7);

7 samples of a sine wave with frequency of 1/4 Hz

y = sine();

Call step method without reset

y1 = sine();
stem([y; y1])

y1 is a continuation of y. Now reset

reset(sine);
y2 = sine();

y2 starts at n = 0 and equals y

isequal(y,y2)
ans =

  logical

   1

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