摘要
侧向制导是飞行器再入制导的重要组成部分,由于传统侧向制导方法不能对倾侧角反转次数进行在线优化,往往会给再入飞行器姿态控制系统的设计带来沉重负担。为此,利用伪谱法可在线快速求解优化问题的特点,提出了一种基于伪谱法的在线再入侧向制导方法,并结合纵向预测校正制导法进行再入制导解算以缩减优化规模。仿真结果表明,在保证制导精度的前提下,所提方法有效地减少了倾侧角反转次数。
Lateral guidance is an important part of reentry guidance of flight vehicles. However,the traditional lateral guidance method lacks the ability of on-line optimization,which leave attitude control system the burden of a great deal of bank angle-reversals. So in this paper,an optimized designing method working in real-time was proposed based on the high precision and convergence speed of pseudo-spectral method,and combined the longitudinal predictor-corrector method to reduce the size of optimal design. Simulation results show the effectiveness of the proposed method in reducing the number of bank-angle reversals.
作者
常江
马清华
王根
罗建军
CHANG Jiang MA Qing-hua WANG Gen LUO Jian-jun(The fifth department, Xi＇ an Modem Control Technology Research Institute, Xi＇ an 710065, China School of Astronautics, Northwestern Polytechnical University, Xi＇an 710072, China)
出处
《飞行力学》
CSCD
北大核心
2016年第6期63-66,共4页
Flight Dynamics
关键词
再入飞行器
侧向制导
预测校正
伪谱法
reentry vehicle
lateral guidance
predictor-corrector
pseudo-spectral method
作者简介
常江（1990-），男，陕西榆林人，工程师，硕士，主要从事飞行器制导与控制研究。
