Title :
Development of distributed integrated navigation simulator for autonomous spacecraft
Author :
Ma, Weihua ; Luo, Jianjun ; Wang, Mingming ; Zhu, Zhanxia
Author_Institution :
Coll. of Astronaut., Northwestern Polytech. Univ., Xi´´an, China
Abstract :
Before developing an integrated navigation system, it is an efficient method to build an integrated navigation simulator to reduce cost and shorten period of development. Building a distributed simulator with multiple computers will be more close to the actual system. A distributed integrated simulator for spacecraft autonomous navigation, with the characteristics of modularization and universalisation, was developed with computers and data bus. Based on the previously research, autonomous navigation sensors consists of Strap-down Inertial Navigation System (SINS), Global Positioning System (GPS) and Star Sensor (SS). To realize integrated navigation function, the configuration of the distributed simulator was designed to include Trajectory Generator subsystem, Inertial Measurement Unit subsystem, SINS subsystem, GPS subsystem, SS subsystem and Integrated Navigation subsystem. Hardware design and software development of the simulator are discussed. The federated/centralized Kalman filters are used as simulator information fusion algorithm. The distributed simulator has been applied successfully to provide useful advice for designers.
Keywords :
Global Positioning System; Kalman filters; aerospace robotics; aerospace simulation; inertial navigation; mobile robots; path planning; position control; remotely operated vehicles; sensor fusion; space vehicles; GPS subsystem; Global Positioning System; SINS subsystem; SS subsystem; autonomous spacecraft; centralized Kalman filters; computers; data bus; distributed integrated navigation simulator; federated Kalman filters; inertial measurement unit subsystem; integrated navigation subsystem; modularization characteristic; simulator information fusion algorithm; star sensor; strapdown inertial navigation system; trajectory generator subsystem; universalisation characteristic; Computational modeling; Computer simulation; Costs; Distributed computing; Global Positioning System; Navigation; Sensor phenomena and characterization; Sensor systems; Silicon compounds; Space vehicles; autonomous; distributed; integrated navigation; simulator; spacecraft;
Conference_Titel :
Mechatronics and Automation, 2009. ICMA 2009. International Conference on
Conference_Location :
Changchun
Print_ISBN :
978-1-4244-2692-8
Electronic_ISBN :
978-1-4244-2693-5
DOI :
10.1109/ICMA.2009.5245089
