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accelerometer data
相关语句
  加速度计数据
     Based on one month's rapid science orbit and accelerometer data from CRAMP data centre in three different periods that are August 2001, January 2002 and September 2003, three global gravity field models of 50 degree and order named XISM01, XISM02 and XISM03 are recovered.
     基于能量守恒方法,利用2001年8月,2002年1月和2003年9月三个不同时期的CHAMP快速科学轨道数据和加速度计数据计算出了3组50×50地球重力场模型XISM01、XISM02、XISM03。
     Analysis of Accelerometer Data for CHAMP
     CHAMP星载加速度计数据分析
短句来源
     Based on 30 days' rapid science orbit and accelerometer data from CHAMP data centre, the 50 degree and order global gravity field model XISM02 is recovered.
     利用2002年1月的CHAMP快速科学轨道数据和加速度计数据计算出了50×50地球重力场模型XISM02。
短句来源
     Processing and Analysis of Earth Gravity Field of Accelerometer Data for CHAMP
     CHAMP星载加速度计数据(0.1Hz)处理与分析
短句来源
     Calibration for CHAMP Accelerometer Data Based on Crossover Points of the Satellite
     利用卫星轨迹交叉点标定CHAMP卫星加速度计数据
短句来源
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  “accelerometer data”译为未确定词的双语例句
     It is showed that RMS of SLR residual decreased from 16.5cm to 2.7cm by replacing non-conservational data with accelerometer data, contrasted to precise orbit, satellite position error decreased from 18.9cm to 6.2 cm.
     结果显示用加速仪数据代替非保守力对CHAMP卫星进行精密定轨时,其SLR 的残差从原来的16.5 cm减少到2.7 cm,与精密轨道相比,卫星位置误差由18.9cm减少 到6.2cm(一天资料).
短句来源
     The paper presented a new method for LEO satellite precise orbit determination by referring to PPP(Precise Point Positioning) method-Which integrated Onboard accelerometer data and GPS precise ephemeris and clock error data provided by the IGS.
     参照GPS精密单点定位(PPP,Precise Point Positioning)模型设计了一种新的卫星定轨方法-组合星载加速度计测量数据和IGS提供的GPS精密星历及精密钟差数据进行低轨卫星的精密定轨。
短句来源
     The disposal of accelerometer data was introduced. Based on the energy conservation theory,using 180 days CHAMP satellite PSO and accelerometer data in three different periods of month 1-2,7-8 and 11-12,2002,three global gravity field models of 50 degree that named GFM01,GFM02 and GFM03 were recovered. These gravity field models were compared with models EGM96 and EIGEN-CG01C.
     基于能量守恒方法,利用2002年1-2月、7-8月和11-12月三个不同时期共180天的CHAMP卫星精密星历和加速度数据恢复了三组50阶次的地球重力场模型GFM01、GFM02和GFM03,并将这些模型与EGM 96重力场模型和GFZ公布的EIGEN-CG01C重力场模型进行比较。
短句来源
     The gravity field model TJCHAMP01S has been recovered with the 120-day CHAMP data including dynamical orbits and accelerometer data,and validated based on various criteria. The results show that the model TJCHAMP01S is more accurate than the EGM96 and EIGEN-1S model of the same degree and order.
     采用CHAMP卫星120天的动力学轨道数据和加速度数据解算出50阶次的地球重力场模型TJCHAMP01S,并利用各种方法对该模型进行了检核,结果表明:TJCHAMP01S模型精度优于相同阶次的EGM96和EIGEN-1S模型.
短句来源
     Contribution of Accelerometer Data in CHAMP Precise Orbit Determination
     加速仪数据在CHAMP卫星精密定轨中的贡献
短句来源
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  相似匹配句对
     Analysis of Accelerometer Data for CHAMP
     CHAMP星载加速度计数据分析
短句来源
     DATA
     数据
短句来源
     Data Acquisition of Accelerometer in Strapdown System
     捷联系统中加速度计的信号采集
短句来源
     data sections.
     data块的DES加密过程.
短句来源
     SAW Accelerometer
     声表面波加速度计
短句来源
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  accelerometer data
Measured, accelerometer data were used to calculate the frequency-response functions.
      
It will be shown for the case of interest that the high-speed photography will yield results that are better than those obtained from the accelerometer data.
      
A comparison of high-speed photography and accelerometer data-reduction techniques
      
Pressure-transducer and accelerometer data accumulated during several water tests of a liquid-rocketengine pump were subjected to spectral analysis.
      
For this purpose the energy integral approach was applied to precise kinematic orbits and accelerometer data.
      
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The German Challeging Minisatellite Payload(CHAMP) was launched in July 2000. It is the first satellite that provides us with position and accelerometer measurements, with which the gravity field model can be determinated. One of the most popular method for geopotential recovery using the position and accelerometer measurements is the energy conservation method. The main aim of this paper is to determinate the scale and bias parameters of CHAMP accelerometer data using the energy conservation method. The...

The German Challeging Minisatellite Payload(CHAMP) was launched in July 2000. It is the first satellite that provides us with position and accelerometer measurements, with which the gravity field model can be determinated. One of the most popular method for geopotential recovery using the position and accelerometer measurements is the energy conservation method. The main aim of this paper is to determinate the scale and bias parameters of CHAMP accelerometer data using the energy conservation method. The basic principle and mathematical model using the crossover points of CHAMP orbit to calibrate the accelerometry data are given based on the energy balance method. The rigorous integral formula as well as its discrete form of the observational equation is presented. This method can be used to estimate only one of the scale and bias parameters or both of them. In order to control the influence of outliers, the robust estimator for the calibration parameters is given.

基于能量守恒方程给出了利用卫星轨迹交叉点标定CHAMP卫星加速度数据的基本原理和方法 ,并给出了其严密的积分公式及其离散化形式。为了控制加速度数据的扰动异常 ,建议采用抗差估计求解参数值 ,并基于实测的CHAMP卫星加速度计数据进行了计算与比较 ,验证了该方法的有效性

The theory and method of CHAMP gravity field recovery using energy conservation method are introduced. The problem related to the accelerometer data is pointed out. The mathematic model and differential arithmetic for calibrating the accelerometer data are presented, which can be used for estimating the scale, bias and bias drift parameter simultaneously and efficiently. Based on 30 days' rapid science orbit and accelerometer data from CHAMP data centre, the 50 degree and order global...

The theory and method of CHAMP gravity field recovery using energy conservation method are introduced. The problem related to the accelerometer data is pointed out. The mathematic model and differential arithmetic for calibrating the accelerometer data are presented, which can be used for estimating the scale, bias and bias drift parameter simultaneously and efficiently. Based on 30 days' rapid science orbit and accelerometer data from CHAMP data centre, the 50 degree and order global gravity field model XISM02 is recovered. The XISM02 model is compared to other recent models, EGM96, GRIM5C1, EIGEN1S and EIGEN2. The assessment with the Arctic gravity anomalies data is also made among these models. The result shows that XISM02 as well as EIGEN1S and EIGEN2 yields a good fit to the geopotential field in Arctic area.

介绍了基于能量守恒定律恢复地球重力场模型的基本原理和算法。指出了CHAMP加速度计数据存在的问题,提出了整体求解尺度因子、偏差参数和偏差漂移的数学模型及差分算法。利用2002年1月的CHAMP快速科学轨道数据和加速度计数据计算出了50×50地球重力场模型XISM02。将该模型与EGM96,GRIM5C1,EIGEN1S,EIGEN2模型进行了比较,并用北极实测重力数据对上述模型进行了检验。结果表明:XISM02模型在北极地区精度与EIGEN1S,EIGEN2相当。

The theory and algorithm of determining system errors of CHAMP accelerometer are presented based on energy conservation method. The time series of scale factor, bias and bias drift is analyzed using about two and a half years' accelerometer data of CHAMP from August 2001 to December 2003. The long-term and principal periods variations are obtained by using LS spectral analysis as well as the robust one. The results show that there are clear periodic variations in the time series of scale factor, bias and...

The theory and algorithm of determining system errors of CHAMP accelerometer are presented based on energy conservation method. The time series of scale factor, bias and bias drift is analyzed using about two and a half years' accelerometer data of CHAMP from August 2001 to December 2003. The long-term and principal periods variations are obtained by using LS spectral analysis as well as the robust one. The results show that there are clear periodic variations in the time series of scale factor, bias and bias drift. For scale factor, the principal periods are 441 d, 220 d, 126 d and 13.4 d. 441 d and 220 d periods make great contributions to scale factor. For bias, the principal periods are 220 d, 126 d and 13.4 d, and they make almost the same contributions. For bias drift, the principal periods are 220 d, 13.4 d and 9d, and 13.4 d makes the greatest contribution. There are obvious long-term variations in the time series of scale factor and bias except bias drift. It is shown that the results of the robust spectral analysis are superior to that of LS one in the whole. Further investigations about why there are long-term and period variations in system errors of CHAMP accelerometer are necessary.

给出了利用能量守恒方法求定CHAMP卫星加速度计标校参数的基本原理和算法.对2001年8 月-2003年12月共约两年半的CHAMP卫星加速度计数据进行了标校,导出了尺度、偏差和偏差漂移参数 的时间序列,分别采用最小二乘谱分析和抗差谱分析对这些时间序列进行了分析.结果表明,尺度、偏差和偏 差漂移参数都有明显的周期变化,但各主周期项略有差异.尺度的主周期是441 d、220 d、126 d和13.4 d 的周期变化,其中220d和441d的周期变化的贡献相对较大.偏差中有明显的220d、126d和13.4d周 期变化,各周期变化的贡献几乎相当;偏差漂移的主周期是220 d、 13.4 d和9 d的周期变化,其中13.4 d 的周期变化最为显著,几乎比其他周期项变化高出一个数量级.另外尺度和偏差参数还有明显的长期变化,而 偏差漂移参数的长期变化不明显.

 
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