弹箭与制导学报2024,Vol.44Issue(2) :57-63.DOI:10.15892/j.cnki.djzdxb.2024.02.009

高动态姿态测量圆锥误差补偿算法改进及实时性分析

Improved High-dynamic Attitude Measurement Cone Error Compensation Algorithm and Real-time Analysis

庞珂 兀伟 刘星 刘强
弹箭与制导学报2024,Vol.44Issue(2) :57-63.DOI:10.15892/j.cnki.djzdxb.2024.02.009

高动态姿态测量圆锥误差补偿算法改进及实时性分析

Improved High-dynamic Attitude Measurement Cone Error Compensation Algorithm and Real-time Analysis

庞珂 1兀伟 1刘星 1刘强2
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作者信息

  • 1. 西安工业大学电子信息工程学院,陕西 西安 710021
  • 2. 西北工业集团有限公司,陕西 西安 710043
  • 折叠

摘要

弹丸圆锥运动会对制导系统产生严重的控制干扰,为了补偿该误差,分析了一种新的圆锥误差补偿算法,以提高弹载姿态控制系统在高动态运动环境下的解算精度和实时性.结合四元数四阶龙格-库塔法和三子样等效旋转矢量法,利用修正型罗德里格斯参数改进基于角增量输出的三子样四元数姿态算法,推导相应的微分方程表达式,建立三子样四元数改进算法姿态求解数学模型.仿真结果表明,与传统圆锥误差补偿算法相比,改进算法能更有效的补偿圆锥误差,平均解算精度提高了约17.32%,减少了高动态环境下的计算量,实时性提升了约22.54%.

Abstract

Projectile conical motion causes significant control disturbances in the guidance system. In order to compensate for this error,a new conical error compensation algorithm has been analyzed to improve the accuracy and real-time performance of the bullet attitude control system in a high-dynamic motion environment. Combining the quaternion four-level Runge-Kutta method and the triad equivalent rotation vector method,an improved triad quaternion attitude algorithm based on modified Ro-driguez parameters for angle increment output is utilized. Derive the corresponding differential equation expressions to establish the mathematical model for solving the attitude using the improved triad quaternion algorithm. Simulation results demonstrate that compared to traditional conical error compensation algorithms,improved algorithms can more effectively compensate for conical errors,with an average accuracy improvement of approximately 17. 32%,reduce computational load in high-dynamic environment and improve real-time performance by approximately 22. 54%.

关键词

捷联姿态算法/圆锥误差补偿/龙格-库塔法/圆锥运动

Key words

strapdown attitude algorithm/conical error compensation/Runge-Kutta algorithm/conical motion

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出版年

2024
弹箭与制导学报
中国兵工学会 中国兵器工业第203研究所

弹箭与制导学报

CSTPCD北大核心
影响因子:0.311
ISSN:1673-9728
参考文献量16
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