If x(t)=A sin(50 rt) +B cos (100t), and the fs =200 Hz, then is the discrete time* :signal x[n] is equal toA sin 0.5nn+ B cos 0.5nA sin 0.25nn+ B cos 0.5nA sin 0.25nn+ B cos 0.5tnA sin 0.25n+B cos 0.5nn* If x(t)=3cos100rt what is the sampling rate to avoid aliasing100100n5050 m For the 8-points DFT/FFT method, the frequency resolution of converting a (9sampled signal with sampling frequency fs=150 Hz to the frequency domain is* :equal to17.3 O11.7 O12 O18.7518 OFor 5 bits ADC that accepts analog signal in the range of (0-4) volt, the* :quantization step is equal to0.125 O1.3 O3.2 O0.132 O

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If x(t)=A sin(50 rt) +B cos (100t), and the fs =200 Hz, then is the discrete time signal x[n] is equal to

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Question

If x(t)=A sin(50 rt) +B cos (100t), and the fs =200 Hz, then is the discrete time
* :signal x[n] is equal to
A sin 0.5nn+ B cos 0.5n
A sin 0.25nn+ B cos 0.5n
A sin 0.25nn+ B cos 0.5tn
A sin 0.25n+B cos 0.5nn
* If x(t)=3cos100rt what is the sampling rate to avoid aliasing
100
100n
50
50 m

For the 8-points DFT/FFT method, the frequency resolution of converting a (9
sampled signal with sampling frequency fs=150 Hz to the frequency domain is
* :equal to
17.3 O
11.7 O
12 O
18.75
18 O
For 5 bits ADC that accepts analog signal in the range of (0-4) volt, the
* :quantization step is equal to
0.125 O
1.3 O
3.2 O
0.132 O

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