Consider the signal x[n] = (-1) for the interval of all time -0...
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Consider the signal x[n] = (-1) for the interval of all time -∞0 <n<∞0. 1. If we express x[n] = cos(won) observed for all time -∞o <n<∞o, give the value of wo. II. Give a formula for y[n] that is the output of downsampling by 2 applied to x[n]. Upsampling by L can be used to increase the sampling rate of the input signal by a factor of L and downsampling by M can be used to decrease the sampling rate of the input signal by a factor of M. III. What is the sampling rate change from x[n] to y[n] for each of the cases below? Do the second and thrid configurations produce the same output? Explain your answer? State under what circumstances, the two responses may or may not be the same. x[n] x[n] 1 L x[n] Upsampling 14 Upsampling | M Downsampling 12 Downsampling ↓ M Downsampling ↓ L Upsampling y[n] y[n] y[n] Consider the signal x[n] = (-1) for the interval of all time -∞0 <n<∞0. 1. If we express x[n] = cos(won) observed for all time -∞o <n<∞o, give the value of wo. II. Give a formula for y[n] that is the output of downsampling by 2 applied to x[n]. Upsampling by L can be used to increase the sampling rate of the input signal by a factor of L and downsampling by M can be used to decrease the sampling rate of the input signal by a factor of M. III. What is the sampling rate change from x[n] to y[n] for each of the cases below? Do the second and thrid configurations produce the same output? Explain your answer? State under what circumstances, the two responses may or may not be the same. x[n] x[n] 1 L x[n] Upsampling 14 Upsampling | M Downsampling 12 Downsampling ↓ M Downsampling ↓ L Upsampling y[n] y[n] y[n]
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Thermodynamics An Engineering Approach
ISBN: 978-0073398174
8th edition
Authors: Yunus A. Cengel, Michael A. Boles
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