Question: Consider a wideband PM signal produced by a sinusoidal modulating wave A m cos (2 m t), using a modulator with a phase sensitivity equal

Consider a wideband PM signal produced by a sinusoidal modulating wave A_m cos (2πƒ_mt), using a modulator with a phase sensitivity equal to k _p radius per volt.

(a) Show that if the maximum phase deviation of the PM signal is large compared with one radian, the bandwidth of the PM signal varies linearly with the modulation frequency ƒ_m.

(b) Compare this characteristic of a wideband PM signal with that of a wideband FM signal.

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a The angle of the PM wave is t 2nfot mt anfot Kp Acos2nf t 2ft p ... View full answer

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