Computer Engineering and Applications ›› 2013, Vol. 49 ›› Issue (24): 152-156.

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Research and optimization of landmark matching algorithm for meteorological satellite image navigation

GUO Qiang, YANG Lei, ZHAO Xiangang, FENG Xiaohu, LIN Weixia, ZHANG Zhiqing, WEI Caiying   

  1. National Satellite Meteorological Center, Beijing 100081, China
  • Online:2013-12-15 Published:2013-12-11

气象卫星图像导航的地标匹配算法研究与优化

郭  强,杨  磊,赵现纲,冯小虎,林维夏,张志清,魏彩英   

  1. 国家卫星气象中心,北京 100081

Abstract: This paper studies the landmark matching algorithm in automatic landmark navigation system of the meteorological satellite. The landmark matching algorithm based on maximum correlation coefficient method is used to guarantee the matching precision. The optimized algorithm is proposed using computing optimization, search optimization and parallel optimization comprehensively. The experimental results show that this algorithm can effectively reduce the complexity of the algorithm and significantly improve the execution efficiency. The optimized algorithm can meet the high reliability and time-sensitive requirements of automatic landmark navigation system, and guarantee the matching precision at the same time.

Key words: automatic landmark navigation, landmark matching, maximum correlation coefficient, algorithm optimization

摘要: 对气象卫星图像自动地标导航系统中的地标匹配算法进行了深入研究,采用基于最大相关系数的地标匹配算法来保证匹配精度,综合利用计算优化、搜索优化、并行优化等技术得到优化的地标匹配算法。实验结果表明,该算法能够有效降低算法复杂度,明显提高算法执行效率,同时保证地标匹配的准确性,满足自动地标导航系统的高可靠性和高时效性需求。

关键词: 自动地标导航, 地标匹配, 最大相关系数, 算法优化