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基于交会对接成像敏感器在轨成像目标相对距离变化较大的特性,分析了敏感器嵌入式软件对曝光积分时间、激光发光功率等各项成像参数配置的方法。针对有先验数据、无先验数据初始捕获、跟踪模式等三个不同的工作模式特性与模式切换逻辑,设计了一种初始捕获参数试配方法,并将其与跟踪模式下的最优化参数实时计算相结合,形成了完整的交会对接成像敏感器成像参数设计方案,并进行了仿真测试,结果表明该方法能够有效确保在轨实时图像清晰度满足位姿测算要求,可为交会对接末段制导相对位姿测算提供保障。该方法拟应用于我国后续交会对接任务中。
Based on the characteristic that the relative distance between the in-orbit imaging target and the on-board imaging sensor changed greatly, the methods of configuring the imaging parameters such as the exposure integration time and the laser emission power were analyzed. Aiming at three different working mode characteristics and mode switching logic such as a priori data, no priori data initial acquisition and tracking mode, an initial acquisition parameter matching method is designed and compared with the optimization parameters in tracking mode Real-time calculation to form a complete design scheme of imaging parameters of rendezvous and docking imaging sensor. Simulation results show that this method can effectively ensure the real-time image sharpness of on-orbit meets the requirement of pose measurement, Guidance relative position measurement to provide protection. The method is intended to be applied in the follow-up rendezvous and docking tasks in our country.