[전기전자전파] 신호및시스템2 8장 연습문제풀이
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신호및시스템2 8장 연습문제풀이
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8.1-1 Figure P8.1-1 shows Fourier spectra of signals and . Determine the Nyquistsampling rates for signalsand .
8.1-2 Determine the Nyquistsampling rate and the Nyquistsamplinginterval for the signals
8.1-3 (a) Sketch , the amplitude spectrum of a signal, where εis a very small number → 0. Determine the minimum sampling rate required to be able to reconstruct from these samples.
8.3-2 A TV signal (video and audio) has a bandwidth of 4.5 MHz.This signalis sampled, quantized, and binary coded.
8.5-1 For a signal that is timelimitedto 10ms and has an essentialbandwidth of 10 kHz, determine , the number of signal samples necessary to compute a power-of-2 FFT with a frequency resolution ofat least 50 Hz. Explain whether any zero padding is necessary.
8.5-5 For the signals and represented in Fig. P8.5-5, writethe appropriate sequences and necessary for the computationof the convolution of and using DFT. Use T=1/8.
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