A signal A contains 1 period of an infinite periodic signal X, while a signal B contains 4 periods of 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 length of A should be decreased. O b. The length of A should be increased. O c. The resolution of the DFT of A should be increased. O d. The resolution of the DFT of A should be decreased. magnitude

A signal A contains 1 period of an infinite periodic signal X, while a signal B contains 4 periods of 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 length of A should be decreased. O b. The length of A should be increased. O c. The resolution of the DFT of A should be increased. O d. The resolution of the DFT of A should be decreased. magnitude

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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