Cascaded adaptive loops

Details Cascaded adaptive loops Cascaded adaptive loops

1976-06-23

1984-03-27

Blum, Theodore M.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

G01S 316, G01S 328

Patent

active

044397704

ABSTRACT:
A sidelobe-canceller system for cancelling jamming interference signals f a radar signal includes serially cascaded cancellation channels utilizing preprocessing cancellers and main-channel cancellers. The last serially cascaded cancellation channel includes terminal preprocessing cancellers and terminal main-channel cancellers. The preprocessing is improved by the use of AGC circuits connected one each between the terminal preprocessing cancellers and terminal main-channel cancellers to stabilize the gain of the terminal main-channel cancellers, thus improving the cancellation ratio and transient response of the system.

REFERENCES:
patent: 3202990 (1959-05-01), Howells
patent: 3938154 (1976-02-01), Lewis
patent: 4005426 (1977-01-01), White

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