Accession Number:

ADA071921

Title:

Radar Identification of Naval Vessels.

Descriptive Note:

Final rept.,

Corporate Author:

OHIO STATE UNIV COLUMBUS ELECTROSCIENCE LAB

Personal Author(s):

Report Date:

1979-04-01

Pagination or Media Count:

64.0

Abstract:

Research progress on a method of identification of naval vessels from radar data based on substructure complex natural resonances is reported. Discrete multiple-frequency scattering data on two vessels one battleship, one cruiser for aspects bracketing the bow-on, abeam and stern-on aspects are presented. From these data a relatively new type response waveform is synthesized and complex natural resonances extracted. It is demonstrated that the suggested quasi-invariance of the resonances is true and that identification is also quasi-invariant to the aspect of the interrogating radar signal. Accordingly, probability of identification estimates are extended to new ranges of vessel aspect. Also reported are initial results of a new system to obtain characteristics time domain waveforms of targets via an encapsulated source and receiver technique. Promising results are obtained when this technique is used in conjunction with Pronys method to obtain the poles of a conducting hemisphere on a ground plane the odd TM poles of a conducting sphere. Author

Subject Categories:

  • Marine Engineering
  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE