DocumentCode :
2678225
Title :
Real-time satellite signature suppression shield attitude planning based on improved adaptive genetic algorithm
Author :
Su, Kang ; Zhou, Jianjiang
Author_Institution :
Coll. of Inf. Sci. & Technol., Nanjing Univ. of Aeronaut. Astronaut., Nanjing, China
Volume :
1
fYear :
2010
fDate :
27-29 March 2010
Firstpage :
63
Lastpage :
67
Abstract :
This paper explores the satellite shield attitude planning for low observable satellites equipped with signature suppression shields. The on-orbit satellite´s operational effectiveness and survivability are coupled with its radar cross section (RCS) and laser cross section (LCS) in threat directions, which are determined by the shield´s attitude. This paper presents a real-time satellite shield attitude planning algorithm (RSSAPA), which aims to reduce the satellite´s RCS and LCS in threat directions by limited satellite shield attitude control in real-time. The algorithm establishes a new mathematical model based on satellite orbit, threat distribution and earth curvature directly, and develops an improved adaptive genetic algorithm (IAGA) with novel crossover and mutation strategies, to reduce the computational complexity and ensure the real-time performance. Also, curved surface pixel method (CSPM) is introduced in RSSAPA to calculate satellite´s RCS, and a refined CSPM is developed to complete the satellite´s LCS calculation at the same time. According to the simulation results, the algorithm is proved to be efficient.
Keywords :
artificial satellites; attitude control; computational complexity; genetic algorithms; radar cross-sections; CSPM; RSSAPA; attitude control; computational complexity; curved surface pixel method; improved adaptive genetic algorithm; laser cross section; low-observable satellites; on-orbit satellite operational survivability; radar cross section; realtime satellite shield attitude planning; satellite orbit; signature suppression shield; threat directions; Attitude control; Earth; Genetic algorithms; Genetic mutations; Laser radar; Mathematical model; Optical coupling; Position measurement; Radar cross section; Satellites; attitude planning; genetic algorithm; laser cross section (LCS; radar cross section (RCS); satellite;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Advanced Computer Control (ICACC), 2010 2nd International Conference on
Conference_Location :
Shenyang
Print_ISBN :
978-1-4244-5845-5
Type :
conf
DOI :
10.1109/ICACC.2010.5487064
Filename :
5487064
Link To Document :
بازگشت