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光电系统可见光探测在空间目标监测中发挥着重要作用,而强背景下空间目标探测一直是限制光电探测设备能力的瓶颈;为了提高光电系统实际探测能力,从系统探测能力表征参数-信噪比入手,分析了系统探测信噪比的理论公式和选择原则;针对强背景对光电系统探测信噪比的影响,分析给出了不同光谱滤波方式对光电系统探测信噪比的影响程度;分析了不同布站方式对系统探测能力的影响,并开展了实际观测测量。理论分析表明,采用合适的光谱滤波技术可有效提高光电系统的探测能力,系统探测信噪比提高1倍;通过合理布设光电系统的观测站点,使得光电系统对空间目标的探测能力显著提高,对目标的可探测概率从51%提高到96%,理论分析与实验观测结果基本一致。
The visible light detection of photoelectric system plays an important role in the space target monitoring. However, the space target detection in the strong background has always been the bottleneck that limits the capability of the photoelectric detection device. In order to improve the actual detection capability of the photoelectric system, , Analyzed the theoretical formula and selection principle of signal-to-noise ratio of system detection; according to the influence of strong background on the signal-to-noise ratio of the photoelectric system, the influence of different spectral filtering methods on the SNR of the photoelectric system was analyzed; The impact of the distribution method on the detection capability of the system and the actual observation and measurement are carried out. The theoretical analysis shows that using the appropriate spectral filtering technology can effectively improve the detection capability of the photoelectric system, and the signal-to-noise ratio of the system detection can be doubled. By properly arranging the observation sites of the photoelectric system, the detection capability of the photoelectric system to the space target is significantly improved. The probable probability of the target is increased from 51% to 96%, and the theoretical analysis and experimental observation are basically the same.