海空背景凝视红外成像系统作用距离研究

针对凝视红外成像探测系统作用距离计算问题,在分析传统作用距离模型的基础上,提出基于图像目标信噪比检测依据的新距离计算模型.该计算模型全面考虑了目标与背景的对比度以及红外图像空间起伏噪声特性,给出了复杂背景限制下红外凝视成像探测系统作用距离计算公式.海空背景下舰载红外凝视成像系统探测距离计算实例表明该计算模型相对于原有计算模型能够更准确解决复杂背景情况下红外成像系统作用距离的估算问题.

RESEARCH ON THE OPERATING RANGE OF STARING IR IMAGING SYSTEM IN SEA-SKY BACKGROUND

For the operating range calculation of staring IR imaging system,traditional operating range model was analyzed and a new model was proposed based on the target image's SNR detection criterion.The contrast of target and background and the IR image's clutter character were considered in this model,and the calculating formula of the operating range restricted by the complex background was derived.The experiment result of the ship-borne staring IR imaging system shows that the new model can be more accurately to calculate the operating range of IR imaging system in complex background.