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Filter type selection for signal envelope detection

Obviously, when the envelope detection is of concern, the signal (e.g., a sound signal) must be reconstructed so that it looks like the original one as much as possible which means maximising SINAD (...
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AWGN continous time channel + colored noise

To solve this problem, it is necessary to understand what exactly is meant by $\langle R, \psi_1 \rangle$ and $\langle R, \psi_2 \rangle$. These are the outputs of correlators or matched filters and ...
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Why would the emitted signal from repeating binary data over a wire appear at a frequency lower than the bit frequency?

The highest possible fundamental frequency to be emitted is when we send the binary pattern 10101010…. Note that we send each bit at the data rate but the repetition of the pattern will be half the ...
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Why would the emitted signal from repeating binary data over a wire appear at a frequency lower than the bit frequency?

If you send the same pattern again and again, you have a periodic signal which has a line spectrum and the fundamental frequency is the inverse of the time period. If you send a random bit pattern at ...
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