基于遗传算法的陆基导航布站方法研究  

Research of Genetic Algorithm Applied on Terrestrial Navigation's Station Arrangement Strategy

作　　者：张康[1] 邵会兵[1] 

机构地区：[1]北京控制与电子技术研究所,北京100038

出　　处：《现代防御技术》2012年第1期77-80,共4页Modern Defence Technology

摘　　要：陆基导航是一种通过高精度的测距进行定位、定速的系统,其定位、定速精度与布站有密切关系。为优化陆基导航的布站结果,提高惯性+陆基复合导航精度,提出了一种基于遗传算法的陆基导航布站方法。推导了使用惯性+陆基复合导航的Cramer-Rao下界(CRLB),并以其作为遗传算法布站寻优的适应性函数,再结合其他影响布站的因素作为约束条件,形成了基于遗传算法的布站方法。数学仿真表明,通过该方法的布站可得到较为满意的复合导航的精度,在实际工程应用中具有重要意义。Terrestrial navigation is able to get position and velocity by measuring distance. And the precision of position and velocity has close relation to the station arrangement. To improve the navigation precision,a kind of station arrangement strategy based on genetic algorithm （GA） is proposed. Besides, CRLB of the INS/Terrestrial integrated navigation is taken as the fitness function of genetic algorithm station arrangement for excellence selection. Simulation result shows that high precision integrated navigation may be obtained by us with this station arrangement algorithm.

关 键 词：陆基导航 遗传算法 布站 Cramer—Rao下界 

分 类 号：TN961[电子电信—信号与信息处理] TP301.6[电子电信—信息与通信工程]