Process for the demodulation of an amplitude modulated...

Details Process for the demodulation of an amplitude modulated... Process for the demodulation of an amplitude modulated...

H - Electricity

04

B

329/21, 325/82

H04B 1/68 (2006.01) H03D 1/00 (2006.01) H04N 11/16 (2006.01)

Patent

CA 1173912

ABSTRACT OF THE DISCLOSURE The process for the demodulation of a signal resulting from an amplitude modulation, with suppressed carrier, of two carriers at the same frequency F and in phase quadrature by two modulation signals, comprises sampling the signal according to a frequency mF (m positive integer) , determining the polar coordinates (Pt, ?t) of the rotating vector representing the signal by means of two successive samples of the signal, and determining the values of the amplitudes of the two modulation signals as a function of the polar coordinates of the rotating vector and the times at which the signal is sampled.

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