Research/Patents/US 4439770
US 4439770

CASCADED ADAPTIVE LOOPS

Assignee

Filed

Jun 23, 1976

Granted

Mar 27, 1984

Location

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.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 3, 1982

Rescinded

Nov 7, 1983

Duration

1 year, 8 months

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records