| 卫星导航系统中轮循式时频测量的数据预处理方法 |
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| 引用本文： | 钟巍,张远,陈向东. 卫星导航系统中轮循式时频测量的数据预处理方法[J]. 全球定位系统, 2010, 35(3): 23-27 |
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| 作者姓名： | 钟巍 张远 陈向东 |
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| 作者单位： | 1. 中国人民解放军,61876部队,海南省,三亚市,572022
2. 中国人民解放军,61081部队,北京,100094 |
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| 摘 要： | 针对时间频率系统中轮循式测量多通道信号与标准1PPS信号时差的记录错误通道数据问题，对阿伦方差等计算带来的不利影响，提出了一种结合Baarda算法和三次样条插值算法的数据预处理方法，有效地探测数据记录异常点，并计算异常点的三次样条内插值以替换，提高了原始数据可利用率和计算精确度。
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| 关 键 词： | Baarda 三次样条 双取样方差 预处理 无间隙 |
Preprocessing of Time and Frequency Polling Measurement in Satellite Navigation System |
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| ZHONG Wei,ZHANG Yuan,CHEN Xiang-dong. Preprocessing of Time and Frequency Polling Measurement in Satellite Navigation System[J]. Gnss World of China, 2010, 35(3): 23-27 |
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| Authors: | ZHONG Wei ZHANG Yuan CHEN Xiang-dong |
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| Affiliation: | 1 . 61876 Troops of the Chinese People＇s Liberation Army, Sanya Hainan 572022, China; 2 . 61081 Troops of the Chinese People＇s Liberation Army, Beijing 100094, China) |
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| Abstract: | In time and frequency system, time difference between multichannel signal and standard 1PPS signal may be error record. It was disadvantages to the calculation of Allan variance. So a method with Baarda and cubic spline was designed to process error record. It could detect error record point effectively and replace the error record point with a cubic spline interpolation. With this method, the availability ratio and accuracy were increased. |
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| Keywords: | Baarda |
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