Method for remote detection of electronic bomb fuze

• US 4,951,058 A
• Filed: 09/11/1989
• Issued: 08/21/1990
• Est. Priority Date: 09/11/1989
• Status: Expired due to Fees

• Current Assignee: the united states of america as represented by the secretary of the navy
• Original Assignee: the united states of america as represented by the secretary of the navy
• Inventors: Schriner, David A., Lamp, Richard J.
• Primary Examiner(s): Tarcza, Thomas H.
• Assistant Examiner(s): Hellner, Mark
• Application Number:
  US07/406,948
• Time in Patent Office: 344 Days
• Field of Search: 342/175, 342/192, 342/42-44, 342/27, 342/61
• US Class Current: 342/61
• CPC Class Codes: G01S 13/003 Bistatic radar systems; Multistatic radar systems
• CPC Class Codes: G01S 13/88 Radar or analogous systems specially adapted for specific applications electromagnetic prospecting or detecting of objects, e.g. near-field detection, G01V3/00
• CPC Class Codes: G01S 7/41 using analysis of echo signal for target characterisation; Target signature; Target cross-section

Abstract

A method of remote detection of an electronic device, such as an electronicomb fuze, which employs active electronic elements includes the steps of transmitting a radar beam through an object which potentially encloses a suspected bomb and receiving the reflections of the transmitted beam, using doppler radar techniques to detect signal phase and amplitude modulations, if any, and processing the reflections to provide an output resulting from any detected modulations which would indicate the presence of active electronic elements within the searched object.

Claims

1. A method of remote detection of an electronic bomb fuze having an active electronic element, said remote detection method comprising the steps of:

(a) transmitting a radar beam through an object which potentially encloses a suspected bomb having an active electronic element;

(b) receiving the reflections of the transmitted beam; and

(c) processing the reflections to detect signal modulations, if any, and provide an output resulting from any detected modulation which would indicate the presence of an active electronic element within the searched object.

2. The remote detection method of claim 1 wherein said transmitting and receiving are carried out by a monostatic radar beam.

3. The remote detection method of claim 1 wherein said transmitting and receiving are carried out by a bistatic radar beam.

4. The remote detection method of claim 1 wherein said transmitting and receiving are carried out by a pass-through one-way bistatic radar beam.

5. The remote detection method of claim 1 wherein said transmitting and receiving are carried out by a pair of pass-through two-way bistatic radar beams.

6. The remote detection method of claim 1 wherein said transmitting and receiving are carried out by a pair of superhetrodyne monostatic radar beams.

7. The remote detection method of claim 1 wherein said transmitting and receiving are carried out by a pair of pass-through two-way superhetrodyne bistatic radar beams.

8. The remote detection method of claim 1 wherein said transmitting and receiving are carried out by scanning the object while the object is moving.