Adaptive coherent signal detection method and apparatus

Details Adaptive coherent signal detection method and apparatus Adaptive coherent signal detection method and apparatus

1994-01-24

1995-08-29

Chin, Stephen

Pulse or digital communications

Testing

375222, 375320, 375325, 375377, 327 7, 327 42, 327 46, 327 47, 379 93, 329363, H04B 346

Patent

active

054467713

ABSTRACT:
A detector (100) determines whether an input signal (10) comprises a first signal or a second signal. A first local signal (207) is generated based on the first signal and a second local signal (307)is generated based on the second signal. A first error (211) is formed based on the first local signal and a scaled input signal (50), and a second error (311) is formed based on the second local signal and the scaled input signal. A first distance (215) between the scaled input signal and the first local signal is formed based on the first error, while a second distance (315) between the scaled input signal and the second local signal is formed based on the second error. Whether the input signal comprises the first signal or the second signal is determined by comparing (60) the first distance to the second distance.

REFERENCES:
patent: 4931250 (1990-06-01), Grezczuk
patent: 5202905 (1993-04-01), Sakamoto et al.
patent: 5287540 (1994-02-01), Kuusinen
patent: 5311578 (1994-05-01), Bremer et al.
patent: 5331666 (1994-07-01), Dent
patent: 5349635 (1994-09-01), Scott

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