Adaptive radar threat detection and tracker verification system

• US 4,146,892 A
• Filed: 01/06/1977
• Issued: 03/27/1979
• Est. Priority Date: 01/06/1977
• Status: Expired due to Term

• Current Assignee: Northrop Grumman Corporation
• Original Assignee: Westinghouse Electric Company LLC (Brookfield Asset Management Incorporated)
• Inventors: Overman, Kelly C., Overman, Thelma L.
• Primary Examiner(s): Tubbesing, T. H.
• Application Number:
  US05/757,402
• Time in Patent Office: 810 Days
• Field of Search: 343/5 SA, 343/18 E
• US Class Current: 342/20
• CPC Class Codes: G01S 7/021 Auxiliary means for detecting or identifying radar signals or the like, e.g. radar jamming signals
• CPC Class Codes: G01S 7/295 Means for transforming co-ordinates or for evaluating data, e.g. using computers

Abstract

A system for detecting threats with respect to stored beams that have been established as characteristic of the beams of the signal emitters associated with a particular threat, and for adaptively redefining the stored beam parameters of signal emitters associated with a particular threat in response to the parameters of beams detected by the adaptive tracking system. A radar system for tracking a signal wherein the radar system periodically verifies that tracking has not been transferred from the original signal to a second signal having similar parameters.

Claims

1. A radar system for detecting threats that transmit microwave beams, said system comprising:

means for detecting the incidence of microwave signals at a location in space; and

means for detecting threats from the detected signals, said threat detecting means being operative to compare the detected signals with adaptively redefined stored beams that are associated with stored threats to detect beams transmitted by the threat, said threat detecting means being further operative to detect threats corresponding to the stored threats associated with the adaptively redefined stored beams that are comparable to the detected signals.

2. The radar system of claim 1 further comprising:

means for predicting the incidence of microwave signals, said predicting means being responsive to the detected threat signals of said threat detecting means to control the signals detected by said signal detecting means.

3. A radar system for adaptively detecting threats that transmit microwave beams, where the parameters of the microwave beams are varied by the threat, said system comprising:

means for detecting the incidence of microwave signals at a location in space; and

means for detecting threat signals from the detected signals, said threat detecting means being operative to compare the detected signals with stored beams that are associated with stored threats to detect beams transmitted by the threat, said threat detecting means also being operative to detect threats corresponding to the stored threats associated with the stored beams that are comparable to the detected signals, said threat detecting means being further operative to adaptively redefine the parameters of the stored beams in response to the corresponding parameters of the detected beams.

4. The radar system of claim 3 further comprising:

means for predicting the incidence of microwave signals, said predicting means being responsive to the detected threat signals of said threat detecting means to control said signal detecting means such that said signal detecting means tracks the detected threat signal.