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Efficient demodulator for bandpass sampled AM signals

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1 Author(s)
Larkin, K.G. ; Dept. of Phys. Opt., Sydney Univ., NSW, Australia

A simple nonlinear (quadratic) filter is shown to demodulate bandpass sampled AM signals efficiently. The filter is based upon a discrete version of the recently introduced Teager-Kaiser energy operator, but also closely resembles a complex digital sampling demodulator. Such a filter can also be implemented in analogue circuitry

Published in:

Electronics Letters  (Volume:32 ,  Issue: 2 )