Automatic thresholding multichannel digital radar early warning

Details Automatic thresholding multichannel digital radar early warning Automatic thresholding multichannel digital radar early warning

1988-04-04

1989-08-22

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

Radar ew

Detection of surveilance

G01S 740

Patent

active

048600130

ABSTRACT:
An RF multiplexer divides an incoming signal from an RF antenna into disce frequency bands. Each frequency band has its own separate circuit on separate lines to operate on the frequency band and determine if a radar signal is present or if only noise is present on the line. This is done by comparing the incoming signal for magnitude with a DC signal that is generated within the circuit and is proportional to the noise within the frequency band. An indication that any of the signals within the discrete frequency bands exceed the DC signal generated within the same band results in an alarm indication.

REFERENCES:
patent: 3465253 (1969-09-01), Rittenbach
patent: 3660844 (1972-05-01), Potter
patent: 4313216 (1982-01-01), Jaeger et al.
patent: 4700191 (1987-10-01), Manor

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