Research and Application of Modular Design Method for Star Sensors

star sensors is the key equipment of satellite inertial space attitude determination. As the subdivision of application requirements in space navigation and commercial aerospace fields, the satellite work puts forward more and more differentiated requirements for the power supply interface,communication mode and space environment of star sensors,which intensifies the customization of star sensor product design and the discretization of verification,and results in a huge waste of resources. To solve this problem,the authors propose a modular design principle and method of star sensors. By means of demand envelope,design modularization and verification integration,the problem of numerous customization and discrete verification caused by demand differentiation is solved, and a new idea is put forward for subsequent product design.

In response to the differentiated needs of different users, star sensor products have undergone module design requirements analysis for the power module, communication module, optical system, and structural module of the star sensor through modular design methods, including module replacement design, compatibility design, and scalability design. Modular design applications have been carried out on actual products, and the pilot products have been successfully applied to multiple satellite platforms, It can meet different application requirements without repeated backend design verification, achieving the goal of modular design. Similarly, this design method can also be applied to other types of products.