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Active & Passive Radar Detection & Equipment

Passive Multistatic Radar Imaging using an OFDM Based Signal of Opportunity

Authors: Matthew B Rapson; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
Abstract:
This paper demonstrates a proof of concept in using an OFDM-based signal of opportunity for SAR imaging purposes within a passive, multistatic radar construct. Two signal processing methods have been proposed to create phase history data. The same methods are applied in both a simulated software model and an experimental data collection environment to produce simulated SAR images using the CBP imaging algorithm. The images generated from both the experimental and simulated data were observed to be consistent with each other and with expectations in terms of resolution. Coherent addition of the images results in improved image resolution due to the geometric and frequency diversity of the multistatic scenario compared to the individual bistatic pairs.

Limitations: APPROVED FOR PUBLIC RELEASE
Description: Master's thesis
Pages: 106
Report Date: 22 Mar 2012
Report Number: A070755
Keywords relating to this report:
ALGORITHMS
ANTENNA LOBES
BISTATIC DETECTION
FREQUENCY DIVERSITY
FREQUENCY DIVISION MULTIPLEXING
PASSIVE SYSTEMS
RADAR ANTENNAS
RADAR IMAGES
SIGNAL PROCESSING
SYNTHETIC APERTURE RADAR
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