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However when we lower the Ts value considerably,say Ts=0.7/100 we increase the step size and get a clearer sinusoidal wave.
 
However when we lower the Ts value considerably,say Ts=0.7/100 we increase the step size and get a clearer sinusoidal wave.
  
'''Matlab code:'''. <pre></pre>
+
'''Matlab code:'''. <pre>F0 =13;
 
+
F0 =13;
+
 
T0 =1/F0;
 
T0 =1/F0;
 
Ts = 0.07/100;
 
Ts = 0.07/100;
Line 15: Line 13:
 
x = real(exp(j*(2*pi*F0*t-pi/2)));
 
x = real(exp(j*(2*pi*F0*t-pi/2)));
 
plot(t,x)
 
plot(t,x)
 +
</pre>

Latest revision as of 17:31, 9 September 2008

Problem Since the Ts value is quite large,ie .07 and the period of the sinusoidal t0 = .0769 So, we cant plot 13 ycles of 13Hz accurately as we hardly get 1 point in each cycle.


Solution

However when we lower the Ts value considerably,say Ts=0.7/100 we increase the step size and get a clearer sinusoidal wave.

Matlab code:.
F0 =13;
T0 =1/F0;
Ts = 0.07/100;
t = 0:Ts:13*T0;
x = real(exp(j*(2*pi*F0*t-pi/2)));
plot(t,x)

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