Localised three-dimensional adaptive spatial-temporal processing for airborne radar

Author

Hale, T.B. ; Temple, M.A. ; Raquet, J.F. ; Oxley, M.E. ; Wicks, M.C.

Author_Institution

Dept. of Electr. & Comput. Eng., Air Force Inst. of Technol., Wright-Patterson AFB, OH, USA

Volume

150

Issue

1

fYear

2003

fDate

2/1/2003 12:00:00 AM

Firstpage

18

Lastpage

22

Abstract

Radar space-time adaptive processing (STAP) techniques have classically focused on azimuth-Doppler adaptivity while placing minimal emphasis on elevation. Elevation adaptivity offers significant clutter suppression improvement, allowing further suppression of interference sources having identical Doppler and azimuth as the expected target. Work is presented which incorporates elevation adaptivity using two approaches: a factored approach and a joint domain approach, both greatly improving clutter suppression performance. The proposed concepts are validated using results based on simulated range ambiguous airborne radar data. Target detection improvements on the order of 8 dB and 10 dB (as compared to standard 2D-JDL processing) are demonstrated for the factored and joint domain approaches, respectively, using an 8 × 8 nonuniform rectangular array.

Keywords

airborne radar; interference suppression; radar clutter; radar detection; radar interference; radar signal processing; space-time adaptive processing; 2D JDL processing; Doppler; STAP; azimuth; azimuth-Doppler adaptivity; clutter suppression; elevation adaptivity; factored approach; interference sources suppression; joint domain approach; localised 3D adaptive spatial-temporal processing; nonuniform rectangular array; simulated range ambiguous airborne radar data; space-time adaptive processing; target detection;

fLanguage

English

Journal_Title

Radar, Sonar and Navigation, IEE Proceedings -

Publisher

iet

ISSN

1350-2395

Type

jour

DOI

10.1049/ip-rsn:20030075

Filename

1192336