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Two signals A and B each contain 4 periods of an infinite periodic signal X. In the figure below, the thick red plot and the thin blue plot correspond to the DFT of A and B, respectively. What should change so that the DFT of A becomes similar to the DFT of B? 15 10 500 1000 1500 2000 2500 3000 3500 4000 frequency in Hz O a. The resolution of the DFT of A should be increased. O b. The resolution of the DFT of A should be decreased. O c. The length of A should be increased. O d. The length of A should be decreased. magnitude

Two signals A and B each contain 4 periods of an infinite periodic signal X. In the figure below, the thick red plot and the thin blue plot correspond to the DFT of A and B, respectively. What should change so that the DFT of A becomes similar to the DFT of B? 15 10 500 1000 1500 2000 2500 3000 3500 4000 frequency in Hz O a. The resolution of the DFT of A should be increased. O b. The resolution of the DFT of A should be decreased. O c. The length of A should be increased. O d. The length of A should be decreased. magnitude

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Two signals A and B each contain 4 periods of an infinite periodic signal X. In the figure below, the thick red plot and the thin blue plot correspond to the DFT of A and B, respectively. What should change so that the DFT of A becomes similar to the DFT of B? 15 500 1000 1500 2000 2500 3000 3500 4000 frequency in Hz O a. The resolution of the DFT of A should be increased. O b. The resolution of the DFT of A should be decreased. The length of A should be increased. O d. The length of A should be decreased. magnitude 101
Transcribed Image Text:Two signals A and B each contain 4 periods of an infinite periodic signal X. In the figure below, the thick red plot and the thin blue plot correspond to the DFT of A and B, respectively. What should change so that the DFT of A becomes similar to the DFT of B? 15 500 1000 1500 2000 2500 3000 3500 4000 frequency in Hz O a. The resolution of the DFT of A should be increased. O b. The resolution of the DFT of A should be decreased. The length of A should be increased. O d. The length of A should be decreased. magnitude 101
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