A New Approach for Radar/SAR Target Detection and Imagery Based on MIMO System Concept and Adaptive Space-Time Coding

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Authors
  1. Sabry, R.
  2. Geling, G.W.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
Abstract
A new adaptive and distributed SAR (Synthetic Aperture Radar) concept for recognition and imaging of targets with fading, varying and unstable signatures in a complex environment is explored. These targets (e.g., moving targets, targets in presence of strong, variant and potentially intelligent interference) represent an important class of military ATR applications within the complex urban environment that cannot be effectively handled by current SAR systems and techniques. The MIMO (multiple-input multiple-output) approach taken for accurate modeling of the radar system channels provides effective adaptivity for optimal radar mode selection and signal processing and, can handle target radar cross section (RCS) fading and scintillations within the illumination interval. In particular, the proposed MIMO SAR system can exploit the RCS variations to improve the performance by virtue of the incoherent processing and its multistatic nature. The present approach also characterizes a radar system as a wireless communications system to which useful metrics and methods for overall system optimization apply and provides compatibility for integration into a hybrid network.

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Report Number
DRDC-OTTAWA-TM-2007-087 — Technical Memorandum
Date of publication
01 May 2007
Number of Pages
25
DSTKIM No
CA029340
CANDIS No
527631
Format(s):
CD ROM

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