Dual detection scheme for compressive receivers

Details Dual detection scheme for compressive receivers Dual detection scheme for compressive receivers

1978-10-06

1980-04-29

Martin, John C.

Telecommunications

Receiver or analog modulated signal frequency converter

Measuring or testing of receiver

324 77B, 343 5SA, H04B 1700

Patent

active

042008409

ABSTRACT:
Undesired spurious noise signals appearing in the dispersive delay line (DDL) of a compressive receiver are suppressed and the dynamic range of the receiver is significantly increased by utilizing parallel channels of processing in combination with a signal comparator. Each channel contains a different weighting filter which accordingly modifies the signal passing therethrough. The weighting filters are selected to produce a reversal as to the signal having the largest relative amplitude at a time nearly coincident with the main lobe of the DDL created pulse. Thereby, the comparator produces a square wave form pulse which is nearly coincident in time with the main lobe of the DDL pulse, yet suppresses the adjacent spurious side lobes of the signal being processed in the receiver.

REFERENCES:
patent: 2882395 (1959-04-01), White
patent: 3879661 (1975-04-01), Collins
patent: 3955137 (1976-05-01), Harrington et al.
patent: 4005417 (1977-01-01), Collins
patent: 4131852 (1978-12-01), Holland-Moritz

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