Shanghai Micro Satellite Engineering Center

Preliminary analysis for the joint autonomous orbit determination of the BDS-3 MEO satellites and lunar ELFO satellites based on inter-satellite links

Abstract A fundamental limitation of Autonomous Orbit Determination (AOD) for Global Navigation Satellite Systems (GNSS) constellations using Inter-Satellite Links (ISLs) is the inherent unobservability of the overall rotational bias, leading to continuous degradation of orbit de...

Research on Dynamic Task Planning for Multi-Satellite Cooperative Observation Based on MADDPG

Abstract This paper addresses the challenge of efficient task planning for multi-satellite cooperative observation in dynamic environments and proposes a dynamic task planning method based on an improved multi-agent deep deterministic policy gradient algorithm. The main contribut...

Optimization and application of a tetracycline-inducible gene expression system in Kluyveromyces marxianus

Abstract Kluyveromyces marxianus is a promising microbial cell factory owing to its rapid growth, thermotolerance, broad carbon-source utilization, and food-safe status. Tetracycline (Tet)-inducible systems provide powerful means for precise gene regulation in various hosts. Howe...