红外技术2024，Vol.46Issue(6)：634-645,12.
一种移动平台红外搜索跟踪系统的稳定控制方法
Stability Control Method for Infrared Search and Track System Based on Mobile Platform
熊辉 1吴佳俊 1林丹丹 1宋治杭 1张晋 2李锐华 1刘海 1阎歆婕 1舒骏逸 1郑婕 1冯建伟 1冯若涵 1林宇2
作者信息
- 1. 昆明物理研究所,云南 昆明 650223
- 2. 云南省红外探测技术应用重点实验室,云南 昆明 650223
- 折叠
摘要
Abstract
Infrared search and tracking systems based on the mobile platform have become the mainstream trend of the new generation in optoelectronic search and track systems,and miniaturization and lightweight guarantee high mobility.The angular velocity disturbance,coupled with the carrier's motion attitude change and internal torque disturbance of the system,raises serious challenges to the optical-axis stability control of the optoelectronic load.The traditional optic-axis stability method based on a combination of multi-axis,multi-frame,and high-precision gyro feedback control,is no longer applicable.In this study,a double-velocity closed-loop same-order cascade control method is proposed based on square PI and Luenberger disturbance observation and feedforward,for the optical axis stability control of the optoelectronic load on a two-axis two-frame mobile platform infrared search and tracking system.Simulations and experiments show that compared with the conventional single-gyro closed-loop and double-velocity closed-loop stability control methods,the proposed stability control method can effectively improve the stability accuracy of the optical axis under low-frequency disturbance of the carrier's motion.Under a disturbance of 1°/1 Hz carrier motion,the stability accuracy of the simulated optical axis improved to 2.7817 μrad and that of the actual experiment improved to 35.85 μrad.Under a disturbance of 1°/2 Hz carrier motion,the stability accuracy of the simulated optical axis improved to 38.199 μrad and that of the actual experiment improved to 119.1 μrad.Finally,using the stability control method proposed in this study,the two-axis two-frame infrared search and track system based on the mobile platform effectively overcame the low-frequency angular velocity disturbance coupled with the carrier's motion attitude change between marching,to realize a highly stable and highly dynamic optical-axis-oriented control performance of the optoelectronic load.关键词
移动平台/红外搜索跟踪系统/视轴稳定/同阶串级/平方PI/扰动观测前馈Key words
mobile platform/infrared search and track system/optical axis stability control/same order cascade control/square PI/disturbance observation and feedforward分类
信息技术与安全科学引用本文复制引用
熊辉,吴佳俊,林丹丹,宋治杭,张晋,李锐华,刘海,阎歆婕,舒骏逸,郑婕,冯建伟,冯若涵,林宇..一种移动平台红外搜索跟踪系统的稳定控制方法[J].红外技术,2024,46(6):634-645,12.
