- ShipIR/NTCS (Naval Threat & Countermeasures Simulator) is a comprehensive software package for predicting the susceptibility of naval ships to IR detectors in the marine background. The software includes a generic imaging seeker model and IR flare countermeasure deployment model to simulate the engagement between a ship, its flare tactic and an infrared-guided missile. ShipIR and NTCS were developed by W.R. Davis Engineering Limited and the software package is supplied and supported commercially.
- The IR signature of a ship originates from both internal and external sources. Internal sources include the hot engine uptake metal and exhaust, and heated interior compartments. External sources include skin heating, reflections, and contrast with the background.
- The ShipIR component of the model consists of several sub-models. The background model includes an infrared sky radiance model and atmosphere propagation model using MODTRAN4, and a complex sea reflectance model based on the work by Mermelstein (1994) and Shaw and Churnside (1997).
- A target is constructed from a 3D CAD surface model forming the basis for both a heat transfer model and surface radiance model. The plume trajectory and IR emission model (plume model) is capable of predicting the infrared signatures of both diesel and gas turbine propulsion systems.
- ShipIR/NTCS Target Model Editor
Design and Analysis for IR Signature Management