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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2015, Vol. 36 ›› Issue (7): 2411-2419.doi: 10.7527/S1000-6893.2014.0301

• Electronics and Control • Previous Articles     Next Articles

Angles-only relative navigation integrated with closed-loop guidance technology based on observability analysis

GONG Baichun, LUO Jianjun, YUAN Jianping, MA Weihua   

  1. National Key Laboratory of Aerospace Flight Dynamics, School of Astronautics, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2014-06-27 Revised:2014-10-29 Online:2015-07-15 Published:2014-11-04
  • Supported by:

    National Natural Science Foundation of China (11072194); Doctorate Foundation of Northwestern Polytechnical University (CX201404); Fundamental Research Funds for Central Universities (3102014KYJD007)

Abstract:

Aimed at the problem of space rendezvous using angles-only measurements, relative navigation integrated with closed-loop guidance is developed based on observability analysis. Firstly, the systemic filtering model is established, based on which the observability is investigated from a novel prospect and the observable condition is obtained. Then, integrated with multi-pulse sliding safe guidance strategy, the coupling relationship between angles-only relative navigation and guidance is analyzed and the mathematical expressions are obtained. After that, the integrated scheme of relative navigation and closed-loop guidance is designed by using the coupling expresses. Finally, Monte Carlo simulations are conducted to validate the approach and the performance of navigation and guidance with different accuracies of sensor and initial relative states is analyzed.

Key words: observability analysis, Monte Carlo method, angles-only, navigation, guidance, autonomous rendezvous

CLC Number: