High precision pose measurement system for remote space target based on embedded platform

With the increasing demand for high-precision Earth observation, dual-antenna InSAR satellites achieve higher accuracy through longer baselines and multi-frequency observations, yet they are constrained by factors such as baseline pose parameters. Current baseline measurement methods primarily focus on repeat-pass interferometric InSAR satellites, while research on baseline pose parameter measurement for spaceborne dual-antenna InSAR satellites remains limited. To address this issue, this paper proposes high-precision pose measurement of remote spatial targets based on an embedded platform, aiming to provide real-time, high-precision measurement of the 60m baseline pose parameters for dual-antenna InSAR satellites. Experimental results demonstrated that, under a measurement distance of 60m, the attitude measurement accuracy reached 20″, the pose measurement accuracy achieved 13μm, and the average computation time was approximately 37ms. These results indicate that the system possesses high measurement accuracy, strong anti-interference capability, and excellent real-time performance.