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A signal m(t) with bandwidth 500 Hz is first multiplied by a signal g(t). The resulting signal is passed through an ideal low pass filter with bandwidth 1 kHz. The output of the low pass filter would be :(a) Impulse(b) m(t)(c) 0(d) m(t)del(t)The question was posed to me in homework.I'm obligated to ask this question of Spectrum Analysis of Sampling Process topic in chapter Digital Control Systems of Control Systems |
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Answer» CORRECT answer is (c) 0 The EXPLANATION is: m (t) G (t)->M (f)*G (f) After low pass filtering with FC =1 kHz, hence the output is zero. |
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