The evolution of objectives and the broadening of tasks have heightened the need for swift ma-neuverability in the photoelectric tracking and pointing system.Shifting from ground-based to diverse mo-bile platforms such as vehicles,ships,aircraft,and spacecraft marks a significant trend in the development of photoelectric tracking and pointing systems.The stabilization of the line of sight using an inertial refer-ence unit(IRU)is essential to counteract the high-frequency disturbances encountered on these mobile plat-forms,enabling the system to achieve tracking accuracy at the micro-radian or even sub-micro-radian level.This paper delves into various IRU implementation strategies to mitigate disturbances from the carriers,ensuring precise aiming of the photoelectric tracking and pointing system on moving platforms.It highlights a system design that employs low noise and wideband inertial sensors for angle disturbance detection and achieves line of sight stabilization via feedback control.The document details the system's operational modes,functional features,constructs its mathematical model,and reviews both domestic and internation-al research advancements and future directions in IRU technology.It emphasizes that inertial sensing,sup-port structures,and control systems are critical to IRU's stabilization performance,and it organizes the lat-est research trends in these three vital areas.Conclusively,the paper outlines the spaceborne applications of IRU and explores potential future application domains,considering current demands.
关键词
惯性参考单元/运动平台/光电跟瞄系统/视轴稳定/扰动抑制
Key words
inertial reference unit/moving platform/photoelectric tracking and targeting system/line-of-sight stabilization/disturbance suppression
维普
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