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30 April 2009Updates on fuze and SAR modes in RF channel for Irma 5.2 signature prediction model
The Irma synthetic signature prediction code is being developed by the Munitions Directorate of the Air Force Research
Laboratory (AFRL/RWGG) to facilitate the research and development of advanced weapon seekers Irma began as a
high-resolution, physics-based infrared (IR) target and background signature model for tactical weapon applications and
has grown to include: a laser (or active) channel (1990), improved scene generator to support correlated frame-to-frame
imagery (1992), and a passive IR/millimeter wave (MMW) channel for a co-registered active/passive IR/MMW model
(1994). Irma version 5.0 was released in 2000 and encompassed several upgrades to both the physical models and
software; host support was expanded to Windows, Linux, Solaris, and SGI Irix platforms. In 2005, version 5.1 was
released after extensive verification and validation of an upgraded and reengineered ladar channel. In 2007, version 5.2
was released with a reengineered passive channel. The current Irma development effort is focused on the reengineering
of the radar channel with an expected release of Irma 5.3 in 2009. This paper reports on two of the radar modes
expected to be supported in the radar channel: the fuze mode and the spotlight synthetic aperture radar (SAR) mode.
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Carla Willis, Charles Coker, Bea Thai, Omar Aboutalib, John Pau, "Updates on fuze and SAR modes in RF channel for Irma 5.2 signature prediction model," Proc. SPIE 7348, Modeling and Simulation for Military Operations IV, 734804 (30 April 2009); https://doi.org/10.1117/12.820240