自适应遗传算法捷联惯导系统初始对准  

Study on the Adaptive Genetic Algorithm in the Initial Alignment of SINS

作　　者：王涛[1,2] 张礼礼[1] 郝顺义[2] 

机构地区：[1]解放军驻618所军事代表室,陕西西安710065 [2]空军工程大学工程学院,陕西西安710038

出　　处：《火力与指挥控制》2009年第4期124-127,共4页Fire Control & Command Control

摘　　要：在基本遗传算法的基础上给出了一种适合于捷联惯导系统初始对准问题研究的自适应遗传算法,该算法适时调整遗传空间大小,以保证对准的速度。在选择操作中采用最优解保存策略。交叉概率和变异概率的适时变化使姿态信息具备更强的环境适应性。根据初始对准的特点,用地球重力加速度和自转角速度信息构造适应度函数。仿真结果证实了该算法在捷联惯导系统初始对准问题研究中的有效性。An adaptive genetic algorithm was presented based on the theory of simple genetic algorithm for the study of SINS＇ initial alignment, this algorithm adjusted the size of genetic space timely to ensure aligning speed. The optimized solution saving strategy was used during the operation of selecting. Timely changing of cross probability and mutation probability brought forth the stronger environment adaptability of attitude information. According to the characteristic of initial alignment, the fitness function was constructed using the information of earth＇s acceleration of gravity and angular speed of rotation. Simulation result showed that this algorithm is effective in the study on SINS＇ initial alignment problem.

关 键 词：遗传算法 自适应 捷联惯导系统 初始对准 

分 类 号：O242.23[理学—计算数学] TN966[理学—数学]