Guided Open-Loop System for Deep Space Doppler Tracking

• DOI: 10.1109/tcsii.2024.3365720
• Publication Date: 2024-02-14T00:17:07Z
• Authors: Jifei Tang; Lanhua Xia; Chao Wei; Hao Wang; Rabi Mahapatra
• Keywords: Tracking (education); Tracking system; Orbit Determination

High accuracy and real-time Doppler frequency estimation in deep space is essential for spacecraft ranging, orbit determination planetary atmospheric measurement. Considering the problems of frequent lose-lock, high processing cost performance degradation current systems, an open-loop tracking system guided by on-line self-calibrating trajectory model proposed to achieve estimation. It includes a guidance predict target changing signal dynamic compensation reduce residual complexity, multi-stages module improve accuracy. The scheme validated both simulation test actual experiment data. error 75.9mHz while residuals MEX data 3.7~7.1mHz. shows competitive post schemes with mHz class