速度匹配算法在传递对准中的应用分析

doi:10.3969/j.issn.1001-506X.2020.10.22

Abstract

Abstract:

In theory, the carrier maneuver is beneficial to improve the performance of the velocity matching transfer alignment filter, but the maneuver will also bring large wing dynamic flexure deflection angle, which is unfavorable to transfer alignment. In order to analyze the effect of maneuver on velocity macthing transfer alignment process, firstly, the model of the misalignment angle between the primary inertial navigation system (INS) and sub INS considering the flexible deformation of the wing is given, and the dynamic flexure deformation angle is represented using the second-order Markov process. Secondly, the expressions of the lever arm velocity and acceleration under the influence of the dynamic flexure deformation are given. Then, the error eva-luation method with the velocity matching algorithm is derived. Finally, the performance of the velocity match-ing algorithm under maneuvering conditions is simulated and analyzed based on the proposed relevant model. The results show that the filter appears obvious divergence phenomenon when the standard deviation of wing dynamic flexure deformation angle reaches 20′. Therefore, the influence of dynamic flexure deformation angle caused by maneuver should be fully considered, and the maneuver size or weapon attachment point should be reasonably selected in the application of velocity matching algorithm.

Key words: transfer alignment, dynamic flexure deformation angle, lever arm velocity, velocity matching

CLC Number:

V249

Rongzong SHI, Chen MA, Zhengyu GUO. Application analysis of velocity matching algorithm in transfer alignment[J]. Systems Engineering and Electronics, 2020, 42(10): 2328-2333.

Figures/Tables 5

References 15

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滚转角速度/((°)/s)	杆臂速度/(m/s)
30	3.14
60	6.28
120	12.56

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Application analysis of velocity matching algorithm in transfer alignment

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