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Lets say I perform amplitude modulation (modulation index = 1) of a signal that has a range of [0, 1]. If I demodulate by taking the absolute value of this signal and then low-pass filter it, what will be the range of the demodulated signal (assuming the low-pass filter doesn't attenuate any of the modulation signal's frequencies)?

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  • $\begingroup$ I think you've answered your own question in the last parentheses. Not quite sure what you're asking us here. $\endgroup$ – Marcus Müller Jan 16 at 8:37
  • $\begingroup$ Experimentally I seem to be getting a smaller signal back. $\endgroup$ – Chris_F Jan 16 at 15:34

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