基于TTP准则的红外成像系统性能预测
首发时间:2011-03-08
摘要:针对已有模型对红外成像系统现场性能预测存在的概率预测问题,本文采用最新的目标任务性能(TTP)准则,建立了热成像系统性能评价模型。重点分析不同距离处对热目标的探测、识别、辨认概率和欠采样造成的信号混叠对其预测概率的影响。研究表明该模型与实验数据相吻合,可用于对当前热成像系统性能评价。最后讨论了如何对该性能模型进一步完善。
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Performance prediction of IR imaging system bases on TTP
Abstract:With existing problems of performance prediction of current infrared imaging system, target task performance (TTP) criteria is introduced and performance evaluation model of infrared imaging system is established. This paper, which focused on the analysis of the relationship between range and the probability of detection, discrimination and recognition, and aliasing is caused by under-sampled signal makes effects of the prediction probability. Studies have shown that the model is consistent with the experiment data that can be used on the current thermal imaging system performance evaluation. Concludes is a discussion about how to improve the performance model.
Keywords: Target task performance infrared imaging performance evaluation contrast threshold function
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