Evaluation of maneuvering target detection performance based on measured data

The theoretical model evaluation method of static target discrimination performance based on TTP criterion has advantages of strong environmental adaptability, accurate performance prediction and convenient system parameter optimization, but the accuracy of this method in evaluation of moving target detection performance needs to be further studied. In order to accurately evaluate the detection performance of moving targets, the target motion system, infrared target generation system, target acquisition and storage system were established. The experimental method of human eye threshold judgment was used to evaluate target detection performance at different imaging distances, different motion velocities, and different target sizes, and the target detection probability curve was obtained. According to the NVThermIP theoretical model for field performance evaluation, the target detection performance was calculated when the input of system performance parameters was consistent. The experimental results show that the NVThermIP evaluation model has certain deviation for detection performance prediction of moving targets. In the range of target motion rates measured by experiment, the target is easier to detect with the increase of the target motion rate. Research results provide data support for the revision of theoretical model of performance evaluation of moving targets.