Bootstrapping cross-polarization canceler with a noise-blanking

Details Bootstrapping cross-polarization canceler with a noise-blanking Bootstrapping cross-polarization canceler with a noise-blanking

1985-06-27

1987-01-13

Ng, Jin F.

Telecommunications

Receiver or analog modulated signal frequency converter

Modulation distortion or cross talk correction or elimination

455304, 455305, 455278, 455 63, 375 58, 375 99, H04B 110

Patent

active

046370676

ABSTRACT:
The present invention relates to a bootstrapping cross-polarization canceler which includes a noise-blanking limiter in the path before a correlation detector, and a processor which uses the output from the correlation detector to provide cross-polarization cancellation continuously or just during an outage condition where orthogonally received signals from a communication path include error rates which exceed a predetermined threshold. Alternatively, the processor can use the output of a pseudo error detection, which detects the error rate of the orthogonally received signals, when the error rates in the received signals are below the predetermined threshold in order to achieve convergence and cross-polarization cancellation in the canceler during a non-outage period.

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W. Poel, Radio and Electron. World (GB), Oct. 1983, pp. 19-23.

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