(New page: '''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. ''' ...) |
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'''Problem''' | '''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. | 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. | ||
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| − | F0 =13; | + | '''Solution''' |
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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. | ||
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| + | '''Matlab code:'''. <pre>F0 =13; | ||
T0 =1/F0; | T0 =1/F0; | ||
Ts = 0.07/100; | Ts = 0.07/100; | ||
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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 16:31, 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)
