Design and verification of laser integrated navigation sensor for the Tianwen-2 probe
Abstract
<p indent="0mm">The Laser Integrated Navigation Sensor (LINS) is a dual-purpose instrument for engineering navigation and scientific exploration. As one of the scientific payloads onboard the Tianwen-2 asteroid probe, LINS aims to detect asteroid topography and acquire contextual information about asteroid samples during scientific missions. Serving as a navigation sensor for the Guidance, Navigation, and Control (GNC) subsystem, LINS provides relative position and attitude navigation information for the asteroid probe during descent and sampling operations. LINS implements a compact and integrated design by adopting two operational modes: single photon array imaging and MEMS scanning imaging. This paper introduces the mission requirements and technical specifications of the instrument, elaborates on its system architecture and working principles, and describes ground-based calibration tests along with their results.</p>
