The Earth rotation effect on a LEO L-band GMTI SBR and mitigation strategies

Author

Zulch, Peter ; Davis, Mark ; Adzima, Larry ; Hancock, Robert ; Theis, Sid

Author_Institution

Sensors Directorate, Air Force Res. Lab., Rome, NY, USA

fYear

2004

fDate

26-29 April 2004

Firstpage

27

Lastpage

32

Abstract

Space based radars (SBR) have been used to accomplish a number of civilian and military missions. Most recently, SBR concepts have been considered to perform ground moving target indication (GMTI) radar modes. Unlike airborne surveillance platforms, SBR clutter returns are affected by the high satellite velocity and Earth rotation. The phenomenology of the Earth´s rotation, and its impact on clutter Doppler returns, are discussed for a Low Earth Orbit (LEO) L-band radar concept. The USA Air Force´s Research Laboratory Space Time Adaptive Processing Tool (RLSTAP) high fidelity radar modeling tool is used to provide simulated data in order to demonstrate the Earth rotation effects, and resulting clutter rejection impact on slow moving target detection.

Keywords

Doppler radar; Earth rotation; interference suppression; military radar; radar clutter; radar detection; radar tracking; space-time adaptive processing; spaceborne radar; 1 to 2 GHz; Earth rotation effect; GMTI; L-band SBR; LEO; Low Earth Orbit; RLSTAP; Research Laboratory Space Time Adaptive Processing Tool; USA Air Force; clutter Doppler returns; clutter rejection; ground moving target indication; high fidelity radar modeling tool; military missions; mitigation strategies; slow moving target detection; space based radars; Clutter; Doppler radar; Frequency; L-band; Laboratories; Low earth orbit satellites; Phased arrays; Signal to noise ratio; Spaceborne radar; Surveillance;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference, 2004. Proceedings of the IEEE

Print_ISBN

0-7803-8234-X

Type

conf

DOI

10.1109/NRC.2004.1316390

Filename

1316390