Systems Engineering and Electronics ›› 2020, Vol. 42 ›› Issue (11): 2607-2613.doi: 10.3969/j.issn.1001-506X.2020.11.24

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Design of terminal guidance system for strapdown passive radar

Chunming ZHAO(), Yueming YAO(), Wen JIN(), Weiyang SONG(), Haihong FANG()   

  1. Beijing Institute of Space Long March Vehicle, Beijing 100076, China
  • Received:2020-01-14 Online:2020-11-01 Published:2020-11-05

Abstract:

In order to solve the problem of precision guidance under the condition of large measurement error of the strapdown passive radar seeker, the terminal guidance system of strapdown passive radar is studied from the perspective of practical engineering application. Firstly, the strapdown passive radar seeker model is established. Secondly, in view of the problems of system nonlinearity, filter stability, calculation amount and the coupling of guidance and attitude control, a terminal guidance system scheme based on the algorithms of guidance information extraction with cubature Kalman filter (CKF), sliding mode variable structure guidance, three-loop overload pilot and so on is proposed. Finally, combined with the anti-radiation missile application scene, the system-wide simulation model is established for the scheme verification. The results show that the hit accuracy is 2 m when hitting the stationary target by using the designed terminal guidance system, and the system has a good adaptability for the slow moving target within 15 m/s, the impact point circular error probability (CEP) can reach about 10 m.

Key words: strapdown passive radar seeker, terminal guidance, cubature Kalman filter (CKF), sliding mode guidance law

CLC Number: 

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