船用星敏感器探测灵敏度计算及分析

发布时间：2018-02-21 09:27

本文关键词： 探测器天文导航船用星敏感器探测灵敏度计算模型影响因素　出处：《光学学报》2014年10期 　论文类型：期刊论文

【摘要】：星敏感器作为一种被广泛应用于各种载体上的高精度自主导航定位设备,探测灵敏度影响着其工作效率及测量精度。与航天器载体上的星敏感器不同,船用星敏感器工作在海平面环境下,其探测灵敏度不仅由镜头及成像传感器的各项参数决定,还要受到夜空背景以及大气透射等外部因素的影响。为了给船用星敏感器的研制与应用提供理论依据,通过对星光传播、传感器成像以及信号提取过程的研究分析,推导出了船用星敏感器探测灵敏度的计算模型,并通过实验验证了该模型的有效性,在此基础上,分析了各项因素对船用星敏感器探测灵敏度的影响情况,根据分析结果对船用星敏感器系统的设计研制提出了相应建议。
[Abstract]:As a kind of high precision autonomous navigation and positioning equipment widely used on various carriers, the detection sensitivity affects its working efficiency and measurement accuracy. The detection sensitivity of the marine satellite sensor is determined not only by the parameters of the lens and the imaging sensor, but also by the sea level environment. In order to provide the theoretical basis for the development and application of the ship's star sensor, through the research and analysis of star propagation, sensor imaging and signal extraction process, The computational model of the detection sensitivity of the ship satellite sensor is derived, and the validity of the model is verified by experiments. On the basis of this, the influence of various factors on the detection sensitivity of the ship satellite sensor is analyzed. According to the analysis results, the design and development of the ship satellite sensor system are put forward.
【作者单位】：海军大连舰艇学院航海系;
【基金】：国家科技支撑计划(2012BAH36B00)
【分类号】：TN966

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