Studies of Target Detection Algorithms Which Use Polarimetric Radar Data

This reprint considers the use of polarimetric radar information in the detection and discrimination of targets embedded in a ground clutter background. A frequency diverse radar such as the HOWLS radar is adopted as a baseline. The basic radar resolution is assumed to be on the order of the size of...

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Bibliographic Details
Main Authors: Novak, Leslie M, Sechtin, Michael B, Cardullo, Michele J
Format: Report
Language:English
Subjects:
Active & Passive Radar Detection & Equipment
ALGORITHMS
BACKGROUND
DETECTION
DISCRIMINATION
FREQUENCY
FREQUENCY DIVERSITY
GROUND CLUTTER
HORIZONTAL ORIENTATION
LINEAR POLARIZATION
MEASUREMENT
ORTHOGONALITY
POLARIMETRY
POLARIZATION
PREDICTIONS
RADAR
RADAR CLUTTER
RADAR TARGETS
REPRINTS
RESOLUTION
TARGET DETECTION
TARGETS
VERTICAL ORIENTATION
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Summary:This reprint considers the use of polarimetric radar information in the detection and discrimination of targets embedded in a ground clutter background. A frequency diverse radar such as the HOWLS radar is adopted as a baseline. The basic radar resolution is assumed to be on the order of the size of a typical target (10 m by 10 m). We assume the frequency diverse radar has a fully polarimetric measurement capability. To measure the full polarization scattering matrix (PSM), the radar transmits two orthogonal linear polarizations at each frequency. First, horizontal polarization is transmitted and the radar receives two linear orthogonal components (denoted HH and HV). Next, vertical polarization is transmitted and the radar receives the VV and VH returns. By reciprocity, we assume VH=HV and thus the HH, HV, and VV returns comprise the total information contained in the polarization scattering matrix. Frequency diversity is used to obtain successively independent scattering matrix measurements for multi-look polarimetric processing schemes. Keywords: Performance predictions. Availability: Pub. in Proceedings of the Asilomar Conference on Signals, Systems and Computers (21st), p641-652 1988. No copies furnished by DTIC/NTIS.