Characterization of the Performance of Micro-Scanning Infrared Imager

Abstract

According to the working mechanisms of micro-scanning imagery, an application-oriented analytical method of micro-scanning imager is proposed. Firstly, the sensitivity and resolution of infrared imaging system based on the micro-scanning are characterized respectively, and the modification of Minimum Resolvable Temperature Difference (MRTD) model due to the micro-scanning is implemented. A comparison of MRTD curve between the staring and micro-scanning imaging system is performed. Finally, the field performance of micro-scanning based infrared imaging system is predicted and discussed with the target acquisition model. The simulated results show whether micro-scanning improve the infrared imaging system performance depends on the other imaging system parameters, and working conditions.