Write the signal x(t) = cos(6t) + 2 sin(10t) as (a) The real part of a sum

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Write the signal x(t) = cos(6πt) + 2 sin(10πt) as

(a) The real part of a sum of rotating phasors.
(b) A sum of rotating phasors plus their complex conjugates.
(c) From your results in parts (a) and (b), sketch the single-sided and double-sided amplitude and phase spectra of x(t).

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Principles of Communications Systems, Modulation and Noise

ISBN: 978-8126556793

7th edition

Authors: Rodger E. Ziemer, William H. Tranter

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Question Posted: Sep 13, 2018 11:39 AM

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Write the signal x(t) = cos(6t) + 2 sin(10t) as (a) The real part of a sum

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a The result is xt cos 6t 2 cos 10t 2 Re e j6t Re 2e j10t ...View the full answer

Principles of Communications Systems, Modulation and Noise

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