Human Operator Interface with FLIR Displays

摘要

This report presents an extensive review of factors which limit performance of forward-looking infrared (FLIR) systems. Two critical variables of system performance, modulation transfer function (MTF) and noise equivalent delta temperature (NE delta T), were chosen for further experimental analysis. The experiment used a digital simulation of minimum resolvable temperature (MRT) paradigm to test two modeled FLIR systems. Detection and recognition data were collected for two targets (four-bar and square) in trials with varying levels of size, contrast, noise, and MTF. The test results were compared with the NVL predictive model(Ratches, et al., 1975) used to evaluate FLIR system performance. (Author)