Numerical recipes to determine the performance of multi-channel GMTI radars


  1. Gierull, C.H.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
This memorandum presents a robust and relatively simple-to-implement numerical approach for computing figures of merits, such as probability of detection and probability of false alarms. Figures of merit can be computed to a chosen arbitrary accuracy for generic Ground Moving Target Indicator (GMTI) radars under specified general assumptions for the interfering clutter and desired target signal statistics. The approach expands the well-published single receiver channel analysis to multi-channel approaches, such as the Displaced Phase Center Antenna DPCA or Space-Time Adaptive Processing (STAP) without relying on a common approximation for non-homogeneous clutter (texturizing the noise) to make the models mathematically tractable. The derivation comprises a flexible modeling approach permitting solutions for a variety of target models including deterministic targets and the fluctuating target Radar Cross Section (RCS) Swerling target models. The approach additionally allows for the averaging of multiple independent measurements (multi-looking). The capability and usefulness of this new approach is demonstrated based on numerical examples with a variety of different radar parameter settings.

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Report Number
DRDC-OTTAWA-TM-2011-230 — Technical Memorandum
Date of publication
01 Dec 2011
Number of Pages
Electronic Document(PDF)

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