MATLAB program for Sinwave signal Generation

Sine Wave:

A sine wave has the same shape as the graph of the sine function used in trigonometry. The sine wave or sinusoid is a mathematical function that describes a smooth repetitive oscillation. It occurs often in pure mathematics, as well as physics, signal processing, electrical engineering and many other fields. It’s most basic form as a function of time (t) is:

y(t) = A sin (wt + ɸ  )

where;

     A, the amplitude, is the peak deviation of the function from its center position.

     ω, the angular frequency, specifies how many oscillations occur in a unit time interval, in

          radians per second

     ɸ, the phase, specifies where in its cycle the oscillation begins at t = 0.

Sine Wave can be obtained by using the following formulae

x=sin(2*pi*fi*n)

MATLAB Code:-

Sine wave:-

T=input ('Input time of the Sinusoidal signal= ');

fi=input('Input Frequency of the Sinusoidal signal= );

n =0:0.01:T;

X=sin(2*pi*fi*n);

stem(n,X);

%plot(n,X)

title('input Squence');

xlabel('Time n');

ylabel('Amplitude');

Output Waveform:-

Input time of the Sinusoidal signal= 1

Input Frequency of the Sinusoidal signal= 4 

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