GPS锁定晶振的数据处理方法研究  

Research on Data Processing Method of GPS Disciplined VCO Frequency Standard

作　　者：周德海[1] 崔保健[1] 赵海鹰[1] 

机构地区：[1]中国人民解放军92493部队89分队

出　　处：《宇航计测技术》2009年第3期31-33,共3页Journal of Astronautic Metrology and Measurement

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。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.

关 键 词：滑动平均值滤波法 GPS 压控晶振 

分 类 号：TN752.2[电子电信—电路与系统]