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position correction     
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  位置修正量
     This method uses the strategy of the two-way broadcast position correction between reference station and train carrying positioning unit. Both the driver and the control centre can get the train′s position in real time.
     该系统采用基准台和车载定位台同时互相传输差分数据的方案,即基准台广播位置修正量,车载定位台实时数据处理,使列车司机可及时得到列车实时位置,与此同时,车载定位台广播实时列车位置,基准台对其进行数据处理并将其实时传输给调度控制中心的方案。
短句来源
  位置修正
     At last, this article presents the project for position correction during machining, itcompare instruction position with feedback position by software and correct the position errorwith PID control method.
     最后本文给出了数控加工过程的位置修正方案,采用软件实现对指令位置和反馈位置的比较,并通过PID控制算法实现位置修正
短句来源
     A precise and fast 3D coordinate measuring machine, which is composed of a laser probe head and servomechanism with high performance, was developed utilizing precise control, positioning optimization, approximation of deceleration with three levels broken line, online position correction and smoothing algorithm.
     开发了一种高精度三维坐标测量机,它包括一套激光测头系统和高性能的伺服机构,具有精确控制、定位优化、三级减速近似、在线位置修正和光滑算法等功能.
短句来源
     Error of several rotation-combination is cumulation error,when error is beyond the angle threshold,position correction is needed.
     多次旋转的误差为累积误差,当误差超出某角度阈值,进行一次位置修正
短句来源
  位置校正
     The position information of an emitted event has close relation with the energy information of it. We separate position information from energy information by position correction.
     一个放射事件的位置信息与能量信息是紧密相关的,通过位置校正能实现位置信息与能量信息的分离。
短句来源
     A method for determining oil and water saturations in cores by volume? _CT scanner was developed on the basis of X_ray hardening treatment,X_ray drifting correction,martix transformation of imagines and position correction of CT images with volume?
     对CT图像进行了X射线硬化处理、X射线漂移校正、图像矩阵变换及体积CT位置校正 ,研究出用体积CT对岩心流体饱和度进行测量的技术。
短句来源
  位修正
     The problem of interference checking and tool position correction for 5 axis NC machining of sculptured surfaces is very difficult, but necessary to be solved.
     复杂曲面五坐标NC加工编程的干涉检查和刀位修正是一个十分困难而又必须解决的问题。
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  position correction
Results show that the procedure is able to detect and reduce simulated set-up errors and revealed high reliability in patient position correction, even when the surface deformation is included in testing conditions.
      
Then, the authors propose a novel position correction method by fusing GPS and odometry.
      
In order to overcome the shortcoming, this paper presents a new method, the position correction method.
      
Then position correction will be done through the control algorithm and servo system.
      
Wrong position correction must be avoided, which may happen by mismatching.
      
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The residuals of 355 fundamental stars and 367 catalogue stars observed during 1976—1978 with GDⅡ No. 2 have been reduced and analysed. The relations between 2K and magnitude as well as spectrum type of FK_4 stars observed have been discussed. Then, the position corrections (GDⅡ No. 2-FK_4) Δα's from 196 double transit stars are determined, however, owing to the limitation of cos q, only 137 Δδ's are determined. The mean precisions of Δα's and Δδ's are ±2.6 ms and ±0.″046, respectively. With some restrictions,...

The residuals of 355 fundamental stars and 367 catalogue stars observed during 1976—1978 with GDⅡ No. 2 have been reduced and analysed. The relations between 2K and magnitude as well as spectrum type of FK_4 stars observed have been discussed. Then, the position corrections (GDⅡ No. 2-FK_4) Δα's from 196 double transit stars are determined, however, owing to the limitation of cos q, only 137 Δδ's are determined. The mean precisions of Δα's and Δδ's are ±2.6 ms and ±0.″046, respectively. With some restrictions, 130 Δα's and 11 Δδ's from the stars with only single transit being observed are determined. Finally, systematic corrections of the Δα_δ, Δδ_δ, Δα_α, and Δδ_α type have been given. All these show that the instrument GDⅡ No. 2 is quite well for the observation of star positions.

用1976—1978年期间,GDⅡ No.2观测的355颗基本星和367颗待测星的残差值进行了归算和分析,探讨了2K和星等、光谱型的关系,得到196颗二次过等高圈的恒星的星位改正(GDⅡ No.2-FK_4)△α和△δ,其中△δ因受盲区限制只得137个值.其平均精度分别为±2.6ms和±o'.'046.此外,在一定条件下,还求得一次过等高圈的恒星的星位改正△α和△δ各130和11个值.最后给出了FK_4星表的△α_δ、△δ_δ、△α_α和△δ_α型系统改正.结果表明Ⅱ型光电等高仪是适合于作星位改正工作的.

This contribution reports on the star position corrections of 182 stars which passed across the circle of equal altitudes twice and of part of the stars which, passed across the parallel of altitude once, observed with the Ⅱ type photoelectric astrolabe of Yunnan Observatory from December of 1976 to December of 1981. The regional systematic error of FK4 Catalog is calculated by means of these corrected values.

本文给出了云南天文台Ⅱ型光电高等仪1976年12月至1981年12月观测期间所得到的182颗两次过等高圈恒星的星位置改正值和部分一次过等高圈恒星的星位置改正值。并用这些改正值计算了FK_4星表的区域性系统差。

The provisional position corrections for 820 stars have been well determined on the basis of about 90000 star observations with the photoelectric Astrolabe at Shaanxi Astronomical Observatory, Most of these observations were made with special efforts from Jano,1978 to June, 1981 and some of them were the observations only for time and latitude determina- tion from 1974 to 1977.The observational programme(1978-1981) is narrated and the method used in the reduction discribed he,e is commonly used by many...

The provisional position corrections for 820 stars have been well determined on the basis of about 90000 star observations with the photoelectric Astrolabe at Shaanxi Astronomical Observatory, Most of these observations were made with special efforts from Jano,1978 to June, 1981 and some of them were the observations only for time and latitude determina- tion from 1974 to 1977.The observational programme(1978-1981) is narrated and the method used in the reduction discribed he,e is commonly used by many colleagues,defferent methods,however,were also put to use here in order to test our results.The systematic errors fo the telescope including magnitude eguations and spectrum effects are discussed.The former is analysed not to be obvious and the latter is conside ed to be eorrected as shows in the latest article written by the present writers.The mean precision of △α to 818 stars and that of △δto 568 stars are ±0″.0043(m_(△α)) and±0″.072(m_(△δ)),respectively.

作者利用1978年1月至1981年6月期间陕西天文台光电等高仪(Ⅰ)的专门星表观测资料,归算了820颗恒星的星表位置改正Δα和Δδ。文章介绍了观测方案、归算方法以及仪器某些系统误差的分析等。所得到的818颗星的Δα和568颗星的Δδ的平均内部精度分别为m_(Δα)=±0~S.0043,m_(Δδ)=±0″.072。

 
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