One-bit autocorrelation envelope detector

Details One-bit autocorrelation envelope detector One-bit autocorrelation envelope detector

1981-12-28

1983-10-25

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

375102, 364728, H03D 302

Patent

active

044123400

ABSTRACT:
An apparatus for automatically detecting the existence of an unknown narrband signal in the presence of wide-band noise-like interference. The apparatus performs a one-bit autocorrelation at a delay time such that wide-band signals are decorrelated while narrow-band signals remain correlated. Additionally, the autocorrelation is separated into quadrature components which are re-combined to give an estimate of the envelope of the autocorrelation of the input signal.

REFERENCES:
patent: 3921075 (1975-11-01), Denny
patent: 3993956 (1976-11-01), Gilmore et al.
patent: 4057759 (1977-11-01), Genova et al.
patent: 4088960 (1978-05-01), Osborne
patent: 4100378 (1978-07-01), Claasen et al.
patent: 4164036 (1979-08-01), Wax

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