Effect of Doppler ambiguities on GMTI tracking

Author

Koch, W.

Author_Institution

FGAN-FKIE, Wachtberg, Germany

fYear

2002

fDate

15-17 Oct. 2002

Firstpage

153

Lastpage

157

Abstract

We focus on the effect of Doppler ambiguities on target tracking with airborne GMTI radar. Even after platform motion compensation by STAP techniques, GMTI tracking proves to be a challenging task. Unless appropriately handled, Doppler blindness can cause serious problems, which seem to be even more difficult in the presence of Doppler ambiguities producing multiple clutter notches. We develop an appropriately modified GMTI sensor model and evaluate its impact on the GMTI tracking process. By this approach the minimum detectable velocity (MDV) and the pulse-repetition frequency (PRF) explicitly enter into the GMTI tracking algorithms.

Keywords

Doppler effect; airborne radar; motion compensation; radar clutter; radar detection; radar signal processing; radar tracking; space-time adaptive processing; target tracking; Doppler ambiguities; Doppler blindness; GMTI detection model; GMTI tracking; STAP techniques; airborne GMTI radar; ground surveillance; minimum detectable velocity; modified GMTI sensor model; multiple clutter notches; platform motion compensation; pulse-repetition frequency; space-time adaptive processing; target tracking; Airborne radar; Blindness; Clutter; Doppler radar; Frequency; Radar detection; Radar tracking; Sensor phenomena and characterization; Signal processing algorithms; Target tracking;

fLanguage

English

Publisher

iet

Conference_Titel

RADAR 2002

Conference_Location

Edinburgh, UK

ISSN

0537-9989

Print_ISBN

0-85296-750-0

Type

conf

DOI

10.1109/RADAR.2002.1174672

Filename

1174672