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评价红外系统的性能,通常看它的虚警概率以及在一定探测距离下发现概率两个主要指标。设计红外系统,也是以总体提出的虚警概率和发现概率的要求为依据。因此,在选择系统的检测准则时,自然就要求:在给定允许虚警概率条件下,当信噪比为一定值时,使发现概率达到最大值(即满足总体要求值)。也就是说,在给定的允许虚警概率条件下,为满足规定的发现概率值而使所需要
Evaluation of the performance of the infrared system, usually to see its false alarm probability and detection probability found at a certain distance two major indicators. The design of the infrared system is also based on the overall false alarm probability and probability of discovery. Therefore, when choosing the test criterion of the system, it is a natural requirement that the maximum probability of finding be achieved (ie, the total required value is satisfied) when the signal-to-noise ratio is a certain value given the allowable false alarm probability. That is, under the given allowable false alarm probability, what is needed to satisfy the specified probability of discovery