Method for determining desired components of quadrature modulate

Details Method for determining desired components of quadrature modulate Method for determining desired components of quadrature modulate

1993-09-02

1995-03-07

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Modulation distortion or cross talk correction or elimination

455 63, 455303, 375235, 375261, 375349, H04B 116

Patent

active

053966562

ABSTRACT:
In the following manner, a receiver that receives quadrature modulated signals may determine desired components of the quadrature modulated signals by minimizing effects of transmitted distortion produced by gain, phase, or gain-phase imbalance. A quadrature modulated signal that includes a desired component, a fading component, and a transmitter distortion component is received by the receiver, wherein the transmitter distortion component includes a conjugate component and an imbalance component. The receiver estimates the fading component, the conjugate component, and the imbalance component and determines the desired component based on these estimates and the quadrature modulated signal.

REFERENCES:
patent: 4899367 (1990-02-01), Sampei
patent: 5245611 (1993-09-01), Ling et al.
patent: 5263196 (1993-11-01), Jasper

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