Hardware Development and Error Characterization for the AFIT RAIL SAR System
Technical Report,01 Sep 2014,24 Mar 2016
AIR FORCE INSTITUTE OF TECHNOLOGY WRIGHT-PATTERSON AFB OH WRIGHT-PATTERSON AFB United States
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This research is focused on updating the Air Force Institute of Technology AFIT Radar Instrumentation Lab RAILSynthetic Aperture Radar SAR experimental system. Firstly, this research assesses current hardware limitations and updates the system configuration and methodology to enable collections from a receiver in motion. Secondly, orthogonal frequency-division multiplexing OFDM signals are used to form SAR images in multiple experimental and simulation configurations. This research analyses, characterizes and attempts compensation of relevant SAR image error sources, such as Doppler shift or motion measurement errors MMEs. Error characterization is conducted using theoretical, simulated and experimental methods. Final experimental results are presented to verify performance of the updated SAR collection system and show improvements to the final product through an updated methodology and various signal processing techniques.
- Active and Passive Radar Detection and Equipment