Official PYQ · 2015Set 1 · Q23Continuous-time SignalsMCQ1 mark

GATE EC 2015 Set 1 Q23 — Continuous-time Signals

Consider the signal $s(t)=m(t) \cos(2 \pi \: f_ct)+ \hat{m}(t) \sin(2 \pi f_c t)$ where $\hat{m}(t)$ denotes the Hilbert transform of $m(t)$ and the bandwidth of $m(t)$ is very small compared to $f_c$ . The signal $s(t)$ is a

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Published 10 Oct 2026

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