A Signature Correlation Study of Ground Target VHF/UHF ISAR Imagery
Abstract
VV and HH-polarized radar signatures of several ground targets were acquired in the VHF/UHF band (171- 342 MHz) by using 1/35th scale models and an indoor radar range operating from 6 to 12 GHz. Data were processed into medianized radar cross sections as well as focused, ISAR imagery. Measurement validation was confirmed by comparing the radar cross section of a test object with a method of moments radar cross section prediction code. The signatures of several vehicles from three vehicle classes (tanks, trunks, and TELs) were measured and a signature cross correlation study was performed. The VHF/UHF band is currently being exploited for its foliage penetration ability, however, the coarse image resolution which results from the relatively long radar wavelengths suggests a more challenging target recognition problem. One of the study's goals was to determine the amount of unique signature content in VHF/UHF ISAR imagery of military ground vehicles. Open-field signatures are compared with each other as well as with simplified shapes of similar size. Signatures were also acquired on one vehicle in a variety of configurations to determine the impact of minor target variations on the signature content at these frequencies.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 2003
- Accession Number
- ADA462278
Entities
People
- A. J. Gatesman
- C. Beaudoin
- Julia Waldman
- R. H. Giles
- S. Carter
- W. E. Nixon
- W. T. Kersey
Organizations
- University of Massachusetts Lowell