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Question

Consider a sinusoidal signal \(s(t) = \cos(\omega_{i}t)\), then the spectrum of Amplitude Modulation is: [Answer the Spectrum and \(s_{HF}(t)\)]

status	not learned	measured difficulty	37% [default]	last interval [days]
repetition number in this series	0	memorised on		scheduled repetition
scheduled repetition interval		last repetition or drill

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Compared to AM, the spectrum \(s_{HF}(t)\) of the DSB signal does not contain the carrier: [Answer the Spectrum and \(s_{HF}(t)\) of DSB]

status	not learned	measured difficulty	37% [default]	last interval [days]
repetition number in this series	0	memorised on		scheduled repetition
scheduled repetition interval		last repetition or drill

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Question

The Circuit Diagram of Coherent DSB Demodulation: [Answer the Circuit Diagram and \(\tilde{r}_{HF}(t)\)]

status	not learned	measured difficulty	37% [default]	last interval [days]
repetition number in this series	0	memorised on		scheduled repetition
scheduled repetition interval		last repetition or drill