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Performance Comparison of RADARSAT-2 Advanced Moving Object Detection Experiment Modes
Authors: S. Chiu; DEFENCE RESEARCH AND DEVELOPMENT CANADA OTTAWA (ONTARIO) |
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Abstract: It has been recognized that a two-aperture approach to ground moving target indication is sub-optimum and that target parameter estimation is often compromised by clutter interference or poor signal-to-clutter ratios. This paper investigates the Ground Moving Target Indication (GMTI) performance of several virtual channel concepts proposed for the RADARSAT-2 Moving Object Detection EXperiment (MODEX). These are capable of increasing the spatial diversity of RADARSAT-2 by exploiting its very flexible antenna programming capabilities and allowing the two-channel SAR system to operate like a three or four channel radar. A high fidelity Space-Based Radar Moving Target Indication Simulator (SBRMTISIM) is used to generate virtual channel raw GMTI data for analysis. Moving targets are detected using a combination of the Factored Space-Time Adaptive Processing (Factored STAP) and the Cell-Averaging Constant False Alarm Rate (CA-CFAR) detector. The detection performances of virtual multichannel MODEX modes are analyzed and compared with each other and with those of true or fictitious multichannel space-based radar systems.
| Description: |
Techincal memorandum |
| Pages: |
42 |
| Report Date: |
DEC 2007 |
| Report Number: |
A892974 |
Report Unavailable |
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