| GPS锁定晶振的数据处理方法研究 |
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| 引用本文： | 周德海,崔保健,赵海鹰.GPS锁定晶振的数据处理方法研究[J].宇航计测技术,2009,29(3):31-33. |
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| 作者姓名： | 周德海 崔保健 赵海鹰 |
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| 作者单位： | 中国人民解放军92493部队89分队,辽宁,葫芦岛,125000 |
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| 摘 要： | 针对GPS锁定晶振频率标准，提出了一种滑动平均值法滤波方法，通过这种算法建立新的取样值与历史取样值相关性，适当选取取样点数形成滑动滤波窗口，改变的滑动滤波窗口大小，能有效克服GPS接收机输出的1×10^-6的波动影响，可以在很短的时间间隔内解算出被控晶振与GPS的偏差值，应用于控制算法，不断修正压控晶振的频率，使压控晶振锁定在GPS上。
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| 关 键 词： | 滑动平均值滤波法 GPS 压控晶振 |
Research on Data Processing Method of GPS Disciplined VCO Frequency Standard |
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| ZHOU De-hai,CUI Bao-jian,ZHAO Hai-ying.Research on Data Processing Method of GPS Disciplined VCO Frequency Standard[J].Journal of Astronautic Metrology and Measurement,2009,29(3):31-33. |
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| Authors: | ZHOU De-hai CUI Bao-jian ZHAO Hai-ying |
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| Institution: | ( PLA 92493 Branch 89, Liaoning Huludao 125000) |
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| Abstract: | In allusion to the GPS disciplined VCO control method, a novel shift average numeric filter is invented, through this method, the correlation between the lasted sample data and the frontal data. Given a propriety window sample number,it can reduce the influence of GPS receiver 1 × 10^-6 output. It can determined the error between VCO output and GPS output,continuously adjusting the VCO＇sfrequency,the. VCO can be locked on the GPS fast. |
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| Keywords: | GPS |
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