Navigation and geo-tracking system of UAV EO payload

Ying Chen; Kang Zhen; Yuanyuan Xue; Xiajiang Zhang; Yingjuan Li; Chao Tang

doi:10.1117/12.2229478

26 January 2016 Navigation and geo-tracking system of UAV EO payload

Ying Chen, Kang Zhen, Yuanyuan Xue, Xiajiang Zhang, Yingjuan Li, Chao Tang

Proceedings Volume 9796, Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015; 97962N (2016) https://doi.org/10.1117/12.2229478
Event: Selected Proceedings of the Chinese Society for Optical Engineering Conferences held November 2015, 2015, Various, China

Abstract

A multi-function system based on inertial measurement unit (IMU) is introduced, which can fulfill navigation, attitude measurement of LOS in payload, platform stabilization and tracking control. The IMU is integrated with electro-optical sensors and a laser range finder on gimbals, which performs attitude calculation and navigation by constructing navigation coordinates in a mathematic platform, and the platform navigation information is obtained by transformation matrix between platform and gimbal coordinates. The platform comprising of gyros, electro-optical sensors and servo mechanism is capable of stabilizing line of sight and could be used to geo-tracking in the relevant field of view (FOV).The system can determine geography coordinates of the host platform and target only with navigation information and laser ranging data. The geo-tracking system always locked the target image at the center of FOV by calculating spatial geometry and adjusting LOS attitude. This tracking is different from TV tracking and geographical reference image tracking, which may be influenced by fog and obscurant. When the UAV is flying over urban or mountain areas for rescue missions, it can avoid the loss of targets due to strong maneuver or LOS obscuration, and reduce the operation load and improve rescue efficiency.

Citation Download Citation

Ying Chen, Kang Zhen, Yuanyuan Xue, Xiajiang Zhang, Yingjuan Li, and Chao Tang "Navigation and geo-tracking system of UAV EO payload", Proc. SPIE 9796, Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015, 97962N (26 January 2016); https://doi.org/10.1117/12.2229478

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KEYWORDS

Unmanned aerial vehicles

Navigation systems

Control systems

Gyroscopes

Servomechanisms

Electro optics

Electro optical systems

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