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AM signal's frequency is a constant True O False QUESTION 9 Noise equivelent bandwidth is always the same as -3dB bandwidth. True False QUESTION 10 A period signal's auto correlation is period as well. O True False

AM signal's frequency is a constant True O False QUESTION 9 Noise equivelent bandwidth is always the same as -3dB bandwidth. True False QUESTION 10 A period signal's auto correlation is period as well. O True False

Introductory Circuit Analysis (13th Edition)
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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### AM Signal Frequency and Bandwidth Concepts **Question 8:** AM signal's frequency is a constant - [X] True - [ ] False **Explanation:** Amplitude Modulated (AM) signals operate at a constant carrier frequency, while the amplitude of the signal is varied to encode information. --- **Question 9:** Noise equivalent bandwidth is always the same as -3dB bandwidth. - [ ] True - [ ] False **Explanation:** While the -3dB bandwidth is a measure of the frequency range where the signal power falls to half its maximum value, noise equivalent bandwidth involves the entire power density distribution and may differ from -3dB bandwidth. --- **Question 10:** A periodic signal's autocorrelation is periodic as well. - [X] True - [ ] False **Explanation:** Autocorrelation measures the similarity between a signal and a time-shifted version of itself. For a periodic signal, the autocorrelation will exhibit the same periodicity as the original signal.
Transcribed Image Text:### AM Signal Frequency and Bandwidth Concepts **Question 8:** AM signal's frequency is a constant - [X] True - [ ] False **Explanation:** Amplitude Modulated (AM) signals operate at a constant carrier frequency, while the amplitude of the signal is varied to encode information. --- **Question 9:** Noise equivalent bandwidth is always the same as -3dB bandwidth. - [ ] True - [ ] False **Explanation:** While the -3dB bandwidth is a measure of the frequency range where the signal power falls to half its maximum value, noise equivalent bandwidth involves the entire power density distribution and may differ from -3dB bandwidth. --- **Question 10:** A periodic signal's autocorrelation is periodic as well. - [X] True - [ ] False **Explanation:** Autocorrelation measures the similarity between a signal and a time-shifted version of itself. For a periodic signal, the autocorrelation will exhibit the same periodicity as the original signal.
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We need to explain about

1) Frequency of AM (amplitude modulated ) signal

2) Noise equivalent bandwidth (BN) vs -3dB cut off frequency (B3dB)

3) Period of periodic signal period=?

 

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