NDLI: Differential Geometry Measures of Nonlinearity for Ground Moving Target Indicator (GMTI) Filtering

Content Provider	IEEE Xplore Digital Library
Author	Mallick, M. La Scala, B.F.
Copyright Year	2005
Description	Author affiliation: Toyon Res. Corp., Goleta, CA (Mallick, M.)
Abstract	The ground moving target indicator (GMTI) radar is widely used to detect, geolocate, track, and classify ground-moving targets in all weather, day-night, and cluttered conditions. The measurements of a GMTI radar are slant range, azimuth, and range-rate or Doppler. These measurements are nonlinear functions of the target state. Until recently, a quantitative measure of the degree of nonlinearity (DoN) for nonlinear filtering problems was lacking. Recently, the DoN of a filtering problem with a nonlinear measurement model has been quantified using the differential geometry based measures of nonlinearity such as the parameter-effects curvature and intrinsic curvature. We calculate three types of parameter-effects curvature and intrinsic curvature for the nonlinear GMTI filtering problem for a variety of scenarios. We vary the distance between the target and the GMTI sensor in these scenarios using simulated data. We demonstrate that the state estimation mean square error (MSE) increases with increase in the DoN
Starting Page	219
Ending Page	226
File Size	1461237
Page Count	8
File Format	PDF
ISBN	0780392868
DOI	10.1109/ICIF.2005.1591858
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-07-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Geometry Filtering Doppler radar Radar tracking Meteorological radar Radar clutter Radar detection Target tracking Radar measurements Azimuth intrinsic curvature Ground moving target indicator (GMTI) radar GMTI filtering nonlinear filtering differential geometry measures of nonlinearity parameter-effects curvature
Content Type	Text
Resource Type	Article

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