Improved Ship Detection with Airborne Polarimetric SAR Data

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Authors
  1. Liu, C.
  2. Vachon, P.W.
  3. Geling, G.W.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
Abstract
The ship-detection performance that can be obtained from polarimetric synthetic aperture radar (SAR) data is compared with that obtained from single-channel SAR data. Statistical decision theory is used to define decision variables that quantify the tradeoff between the probability of missed detection and the probability of false alarm; performance is characterized by calculating receiver operating characteristics from single-channel and polarimetric SAR data by using likelihood ratio tests with the Neyman–Pearson criterion. It is shown that ship-detection performance obtained with polarimetric SAR data is improved compared with that obtained with single-channel SAR data. We also evaluate the results of these algorithms when applied to single-channel, dual-channel amplitude-only, dual-channel with amplitude and phase, and fully polarimetric SAR data of known ships. In this way, the relative improvement in ship-detection performance that is realized by using polarimetric information is quantified.

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Keywords
Polarimetric SAR;Polarimetric techniques
Report Number
DRDC-OTTAWA-SL-2004-049 — Scientific Literature
Date of publication
18 May 2005
Number of Pages
10
Reprinted from
Can. J. Remote Sensing, vol 31, no 1, 2005, p 122 131
DSTKIM No
CA025811
CANDIS No
523535
Format(s):
CD ROM

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