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三种导航卫星钟差加密算法比较

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摘要 针对GPS导航卫星的钟差加密问题,文中首先分析了拉格朗日插值法、三次样条插值、分段线性插值三种常见插值加密算法的原理,并在此基础上利用由IGS提供的精密钟差数据进行验证和分析比较,发现三种方法的精度在一个水平上,但线性插值法的精度最高,对与不同类型的原子钟,BLOCKⅡA Rb的精度最高,BLOCKⅡA Cs精度最差。
作者 刘立加 陈亮
机构地区 [
出处 《测绘技术装备》 2014年第4期89-91,87,共4页 Geomatics Technology and Equipment
关键词 GPS 卫星钟差 插值
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