Title :
Target geolocation in Gotcha data using cross-channel interferometry
Author :
Murthy, Vinay ; Uysal, Faruk ; Scarborough, Steven
Author_Institution :
C & P Technol. Inc., Closter, NJ, USA
Abstract :
This paper discusses application of a cross-channel interferogram based technique for target geolocation to data from the Gotcha sensor. A modified SAR/ATI/STAP geolocation method is used to compensate for the inability to perform STAP well using the available Gotcha data due to limitations in spatial degrees of freedom. SAR/ATI geolocation is illustrated with three examples from the measurements for: two known targets with truth data, and an unknown target. The first known target is geolocated with a 15.6m accuracy; the unknown target is geolocated with reasonable accuracy for 8 out of 11 detections; and the second known target is geolocated with an average error of 13.18m for 10 consecutive CPIs.
Keywords :
Global Positioning System; radar interferometry; synthetic aperture radar; Gotcha data; Gotcha sensor; cross-channel interferogram based technique; cross-channel interferometry; modified SAR/ATI/STAP geolocation method; synthetic aperture radar; target geolocation; Accuracy; Geology; Interferometry; Object detection; Sensors; Synthetic aperture radar; Clutter Suppression; Cross-channel interferometry; GMTI; Ground Moving Target Indication; SAR; Synthetic Aperture Radar; Target Geolocation;
Conference_Titel :
Radar Conference, 2014 IEEE
Conference_Location :
Cincinnati, OH
Print_ISBN :
978-1-4799-2034-1
DOI :
10.1109/RADAR.2014.6875547
