基于地磁熵及灰关联分析的地磁匹配新方法
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摘要
利用地磁定位和惯性导航来确定载体的准确位置的方法,是近年来发展起来的新技术。其关键问题之一是如何进行精确地磁匹配,为解决此问题,文章提出综合利用地磁熵及灰关联分析的新方法,即在计算出待匹配区域的地磁熵值的基础上,选择相应的灰关联匹配的阈值,从而找出最佳匹配点,进而确定载体位置。文章分析了该算法的理论基础并提出了具体的实现算法,经过仿真实验表明,此算法的运算速度快、匹配精度高、具有良好的抗测量误差干扰的能力。
Using geomagnetic positioning and inertial navigation together to discover the precise location of the carrier is a new method developed in recent years.One of the key problems need to be resolved of this method is how to fulfill accurately geomagnetic match.This paper puts forward one new algorithm of making use of geomagnetic entropy and grey correlation analysis to solve this problem,first of all calculating the geomagnetic entropy value of the matched area,secondly according to the entropy of the geomagnetism choosing corresponding different grey correlation matching threshold,finally finding out the best match point and then determining the position of the carrier.This paper analyzes the theoretical base of the algorithm and proposes the practical implementation algorithm.Simulation results show that the speed of that algorithms is fast and the precision of matching is high,simultaneously which has the good resistance to the measurement error.
Using geomagnetic positioning and inertial navigation together to discover the precise location of the carrier is a new method developed in recent years.One of the key problems need to be resolved of this method is how to fulfill accurately geomagnetic match.This paper puts forward one new algorithm of making use of geomagnetic entropy and grey correlation analysis to solve this problem,first of all calculating the geomagnetic entropy value of the matched area,secondly according to the entropy of the geomagnetism choosing corresponding different grey correlation matching threshold,finally finding out the best match point and then determining the position of the carrier.This paper analyzes the theoretical base of the algorithm and proposes the practical implementation algorithm.Simulation results show that the speed of that algorithms is fast and the precision of matching is high,simultaneously which has the good resistance to the measurement error.
引文
[1]徐文耀.地磁学[M].北京:地震出版社,2003.
[2]苑娜.地形辅助导航系统的匹配算法研究[D].哈尔滨:哈尔滨工程大学,2007.
[3]徐洪波,彭卫,苏建忠.基于Hausdorff距离的地形匹配[J].红外与激光工程,1998,31(5):59-62.
[4]刘繁明,成怡.重力/惯性匹配导航系统的仿真研究[J].中国惯性技术学报,2005,13(3):22-25.
[5]王华,晏磊,钱旭,等.基于地形熵和地形差异熵的综合地形匹配算法[J].计算机技术与发展,2007,17(9):25-27.
[6]刘飞,周贤高,杨晔,等.相关地磁匹配定位技术[J].中国惯性技术学报,2007,15(1):59-62.
[7]杨云涛,石志勇,关贞珍.地磁场在导航定位系统中的应用[J].中国惯性技术学报,2007,15(6):686-692.
[8]石志勇,许杨,王毅,等.基于熵的地磁匹配定位算法[J].火力与指挥控制,2010,35(10):8-10.
[9]罗诗途,任治新.基于仿射模型变换的地磁匹配导航算法[J].中国惯性技术学报,2010,18(4):462-465.
[10]朱海,王顺杰,蔡鹏.基于ICCP的水下直线段地磁匹配[J].中国惯性技术学报,2009,17(2):153-155.
[11]焦巍,刘光斌,张金生,等.基于粒子群算法的地磁匹配航迹规划[J].系统工程理论与实践,2010,30(11):2106-2111.
[2]苑娜.地形辅助导航系统的匹配算法研究[D].哈尔滨:哈尔滨工程大学,2007.
[3]徐洪波,彭卫,苏建忠.基于Hausdorff距离的地形匹配[J].红外与激光工程,1998,31(5):59-62.
[4]刘繁明,成怡.重力/惯性匹配导航系统的仿真研究[J].中国惯性技术学报,2005,13(3):22-25.
[5]王华,晏磊,钱旭,等.基于地形熵和地形差异熵的综合地形匹配算法[J].计算机技术与发展,2007,17(9):25-27.
[6]刘飞,周贤高,杨晔,等.相关地磁匹配定位技术[J].中国惯性技术学报,2007,15(1):59-62.
[7]杨云涛,石志勇,关贞珍.地磁场在导航定位系统中的应用[J].中国惯性技术学报,2007,15(6):686-692.
[8]石志勇,许杨,王毅,等.基于熵的地磁匹配定位算法[J].火力与指挥控制,2010,35(10):8-10.
[9]罗诗途,任治新.基于仿射模型变换的地磁匹配导航算法[J].中国惯性技术学报,2010,18(4):462-465.
[10]朱海,王顺杰,蔡鹏.基于ICCP的水下直线段地磁匹配[J].中国惯性技术学报,2009,17(2):153-155.
[11]焦巍,刘光斌,张金生,等.基于粒子群算法的地磁匹配航迹规划[J].系统工程理论与实践,2010,30(11):2106-2111.
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