Incorporating pulse-to-pulse motion effects into side-looking array radar models

A technique is presented for incorporating pulse-to-pulse (inter-pulse) motion effects into side-looking array radar data models yielding a motion-sensitive space-time snapshot. Low flying, highly-maneuverable unmanned aerial vehicles (UAV) represent a potential worst case application scenario given...

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Bibliographic Details
Published in:	Fourth IEEE Workshop on Sensor Array and Multichannel Processing, 2006 pp. 580 - 585
Main Authors:	Green, J.W., Hale, T.B., Temple, M.A., Buckreis, J.T.
Format:	Conference Proceeding
Language:	English
Published:	IEEE 2006
Subjects:	Clutter Data models Frequency Geometry Interference Linear algebra Propagation delay Spaceborne radar Unmanned aerial vehicles Vectors
Online Access:	Get full text
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Summary:	A technique is presented for incorporating pulse-to-pulse (inter-pulse) motion effects into side-looking array radar data models yielding a motion-sensitive space-time snapshot. Low flying, highly-maneuverable unmanned aerial vehicles (UAV) represent a potential worst case application scenario given their roll, yaw, and pitch rates are primarily limited by structural integrity. High degrees of maneuverability during the coherent processing interval (CPI) allow clutter and target returns to change significantly. The technique presented uses M coordinate transformations to describe platform attitude variations throughout the CPI. Ward's model then is extended to incorporate maneuver-induced changes in spatial frequency and Doppler. The new motion-sensitive space-time snapshot is used to characterize space time adaptive processing (STAP) performance without motion-compensation applied. Results clearly show motion-induced clutter-null broadening with measurable degradation of STAP algorithm minimal discernable velocity.
ISBN:	9781424403080 1424403081
ISSN:	1551-2282 2151-870X
DOI:	10.1109/SAM.2006.1706200