Effects of Position Uncertainty on Passive Multistatic SAR Resolution Measures
Abstract
PMSAR research efforts such as emitters of opportunity selection thus far have not considered radar position uncertainty. Seeking to fill this knowledge gap, we run Monte Carlo trials to simulate transmitter position uncertainty and examine the effects on the multistatic resolution of radar sets of different geometries, center frequencies and bandwidths. By monitoring the 3dB contour of the multistatic point spread function (PSF), we find that the multistatic resolution worsens on average and the data spread grows with increasing levels of radar position uncertainty. We observe a robust correlation between the effects of position uncertainty and the bistatic angles. Furthermore, we find that the same amount of position uncertainty has less effects on transmitters with high frequencies and large bandwidths; however, including these transmitters does not guarantee better multistatic resolution, especially with high levels of position uncertainty. The findings and methods in this work can be immediately applied to enhance objective functions for the emitters of opportunity selection problem, producing more realistic rankings that account for non-ideal conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2018
- Accession Number
- AD1056200
Entities
People
- Duy K. Nguyen
Organizations
- Air Force Institute of Technology