Method and apparatus for decoding a quadrature modulated signal

Details Method and apparatus for decoding a quadrature modulated signal Method and apparatus for decoding a quadrature modulated signal

H - Electricity

03

D

329/2

H03D 1/02 (2006.01) H04L 27/38 (2006.01)

Patent

CA 1323402

ABSTRACT OF THE DISCLOSURE A method of demodulating a quadrature modulated signal includes first receiving the signal. The rf signal is then quadrature demodulated to produce in-phase and quadrature signals. One of these signals is filtered to produce a correction signal which is used for phase and amplitude correction. Both of the demodulated signals are again quadrature demodulated to produce the output signals. The second demodulation can be accomplished utilizing a correlation decoder. The applied correlation pulse includes a subcarrier component.

610541

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