H - Electricity – 03 – K
Patent
H - Electricity
03
K
325/80
H03K 9/00 (2006.01) H04B 7/005 (2006.01) H04L 27/227 (2006.01) H04L 27/18 (2006.01)
Patent
CA 1080807
DISTORTION ADAPTER RECEIVER HAVING INTERSYMBOL INTERFERENCE CORRECTION Abstract A differentially adaptive receiver system in which correction is provided for degradation of performance caused by overlapping of adjacent data pulses. A reference signal is produced having the same complex envelope as the received signals and having a constant phase state independent of changes of phase state of the received signals. The received signals are detected against the reference signal as in an ideal matched filter receiver. The detected signals are integrated by an integrate and dump filter over the duration of the pulse period. A correction signal representing the amount of overlap between overlapping adjacent pulses is summed with the output of the integrated dump filter. The sum of the correction signal and integrate and dump filter output is sampled and held by sample and hold circuit to produce the digital data output. The invention herein described was made in the course of or under a contract or subcontract thereunder with the Department of Defense. -1-
267422
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