Say I have an overmodulated signal like the example above. When you demodulate this you will get distortion. Is it possible to somehow demodulate this?
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1If you can recover the carrier and detect the phase flips, it should be possible. – Spehro Pefhany Mar 31 '14 at 23:05
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A synchronous (or product) detector should be used. Widely used in SSB/CW receivers – GR Tech Apr 01 '14 at 11:49
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This signal is half way between regular AM modulation (for broadcasting music) and full double-sideband-suppressed-carrier. Because there is still carrier present you can filter this out to give a constant amplitude sine wave at only the carrier frequency. Use this sine wave and the original "over-modulated" signal and feed them into a balanced modulator (aka 4-quadrant multiplier) to recover the base-band audio.
Andy aka
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