TRM is an analytical model assessing the device and range performance of optronic imagers. The model is based on the perception of a standard 4 bar test pattern, and uses the STANAG 4347 approach to calculate target acquisition ranges.

TRM uses the AMOP figure of merit (Average Modulation at Optimum Phase) for assessing the spatial transfer characteristics of the imager. AMOP replaces the system-MTF used in conventional models. It was developed and validated to characterize under-sampled imagers for which no system-MTF is defined. The AMOP concept can be applied to all kinds of imagers, whether under-sampled or not. The current version of the model is TRM4.v2.

For more information about TRM and its current development please visit the TRM homepage.