高超声速滑翔飞行器地形匹配辅助导航方法研究

doi:10.13700/j.bh.1001-5965.2019.0310

北京航空航天大学学报 ›› 2020, Vol. 46 ›› Issue (4): 691-702.doi: 10.13700/j.bh.1001-5965.2019.0310

高超声速滑翔飞行器地形匹配辅助导航方法研究

鲜勇, 任乐亮, 杨子成, 张大巧, 李杰

火箭军工程大学作战保障学院, 西安 710025

收稿日期:2019-06-17 发布日期:2020-04-21
通讯作者: 鲜勇 E-mail:xy603xy@163.com
作者简介:鲜勇,男,博士,教授,博士生导师。主要研究方向:飞行器设计、制导理论等;任乐亮,男,硕士研究生。主要研究方向:飞行器导航与设计。

Terrain match aided navigation method of hypersonic glide vehicle

XIAN Yong, REN Leliang, YANG Zicheng, ZHANG Daqiao, LI Jie

College of War Support, Rocket Force University of Engineering, Xi'an 710025, China

Received:2019-06-17 Published:2020-04-21

摘要/Abstract

摘要： 高超声速滑翔飞行器滑翔飞行高度在30 km以上，大气极其稀薄，传统采用气压高度计的地形匹配辅助导航方式将无法正常工作。为实现高精度地形匹配，在分析匹配算法对地形常值误差不敏感的基础上，详细论证了基于惯性系统解算绝对高度方案，并对比分析了将短时滑翔段弹道简化为等高飞行方案。在捷联惯性导航系统（SINS）误差模型基础上，结合高度通道方块图，通过拉普拉斯变换，建立了惯性系统高度通道短时稳定性解析模型，并以CAV-H为研究对象建立数值仿真环境。仿真结果表明，解析模型精度较高，基于SINS解算绝对高度能够满足地形匹配辅助导航系统精度要求，优于气压高度计正常工作时的精度。

关键词: 高超声速滑翔飞行器, 地形辅助导航系统, 滑翔弹道, 高度通道稳定性, 气压高度计

Abstract: The height of the hypersonic vehicle gliding flight is over 30 km, so the atmosphere is extremely thin and the traditional terrain match aided navigation with barometric altimeter cannot work properly. In order to improve the accuracy of terrain match, on the basis of analyzing the insensitivity of the matching algorithm to the terrain constant value error, the scheme of using inertial system to solve absolute height is demonstrated in detail, and the scheme that simplifies the short-time gliding trajectory to equal high flight is compared and analyzed. Based on the strap-down inertial navigation system (SINS) error model, the analytic model of the short-time stability of the inertial system is established by the height channel block diagram and Laplace transformation. In addition, the numerical simulation environment is established with CAV-H as study object. The simulation results show that the analytical model has high accuracy and the scheme that the absolute height is solved by SINS can meet the accuracy requirements of terrain match aided navigation system, which is better than the accuracy of the normal operation of the barometric altimeter.

Key words: hypersonic glide vehicle, terrain aided navigation system, gliding trajectory, height channel stability, barometric altimeter

中图分类号:

V249.32

鲜勇, 任乐亮, 杨子成, 张大巧, 李杰. 高超声速滑翔飞行器地形匹配辅助导航方法研究[J]. 北京航空航天大学学报, 2020, 46(4): 691-702.

XIAN Yong, REN Leliang, YANG Zicheng, ZHANG Daqiao, LI Jie. Terrain match aided navigation method of hypersonic glide vehicle[J]. Journal of Beijing University of Aeronautics and Astronautics, 2020, 46(4): 691-702.

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高超声速滑翔飞行器地形匹配辅助导航方法研究

Terrain match aided navigation method of hypersonic glide vehicle

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