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相对导航
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  relative navigation
     JTIDS Relative Navigation Based on INS/JTIDS Integrated Navigation
     基于INS/JTIDS组合的JTIDS相对导航
短句来源
     On the basis of INS/JTIDS integrated navigation,JTIDS relative navigation is discussed.
     在 INS/JTIDS 组合导航的基础上,探讨了 JTIDS的相对导航
短句来源
     Design and Analysis of the Transition Phase from Absolute Navigation to Relative Navigation in Spacecraft Rendezvous Mission
     航天器交会绝对导航向相对导航过渡阶段的分析与设计
短句来源
     Rendezvous Radar Observation-based Relative Navigation Filter
     基于交会雷达测量的相对导航滤波器
短句来源
     Performance analysis and simulation of JTIDS relative navigation
     JTIDS相对导航性能分析和仿真
短句来源
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  related navigation
     Research on Related Navigation Algorithm and Theory Based on JTIDS
     基于JTIDS相对导航算法与理论研究
短句来源
  relative guidance
     A Relative Guidance Algorithm for Proximity of Docking
     对接靠拢段的一种相对导航算法研究
短句来源
     This paper focuses on the autonomous relative guidance algorithm based on the UKF in the process of proximity.
     本文研究了基于UKF滤波器的自主相对导航算法。
短句来源
  “相对导航”译为未确定词的双语例句
     The approach uses two-point measurement of the relative orbit state to establish relative orbit and attitude kinematics and measuring equations,while there is no velocity measuring. State estimation is achieved through the Unscented Kalman filter technology.
     在编队飞行卫星之间无相对速度测量时,利用两点相对轨道状态测量信息,建立相对轨道和姿态运动方程以及星间相对测量方程,推导了编队飞行卫星相对导航UKF(Unscented Kalman Filter)算法,估计其相对轨道和姿态等导航信息.
短句来源
     The applications of GPS in a multi-spacecraft system
     GPS在多航天器相对导航和姿态确定中的应用
短句来源
     A genetic algorithm is employed to choose the most effective navigation sources to save computing time and make sure of the real time feature from multiple factors for the reason of long processing time in Navigation Source Selection.
     同时,在相对导航源选择判据算法中,针对源选择因素较多,处理时间长的特点,本文提出了采用遗传算法进行源选择以节省处理器计算时间的方法,保证了相对导航处理的实时性。
短句来源
     It is shown that the JTIDS relnav function can provide performance which is significantly superior to that of an unaided IN.
     经研究表明,JTIDS相对导航功能的性能显然比单纯的惯性导航系统优越得多.
短句来源
     And it is addressed that in RVD ,the carrier-phase ambiguity-res-olution OTF (On the Fly) methods cand also be applied to directly use the GPS carrier-phase observables to yield better accuracy.
     认为在交会对接相对导航的过程中 ,可以进行载波相位模糊度的OTF解算 ,以直接利用高精度的载波相位观测量 ,提高交会对接测量的精度。
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  relative navigation
Precision relative navigation is an essential aspect of spacecraft formation flying missions, both from an operational and a scientific point of view.
      
A stochastic map is a special way of organizing the states in an Extended Kalman Filter for the purpose of feature relative navigation.
      
However, the relative navigation errors increased due to the less-complete cancellation of the standard GPS measurement errors.
      
In this case, the relative navigation errors increased by about 5 percent.
      
Key among these are a robust cycle ambiguity estimation method and a decentralized relative navigation filter.
      
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  related navigation
We start with a brief description of the KIV model and the related navigation algorithm.
      
  relative guidance
The figures are for relative guidance only and should be checked with the particular lamp manufacturer for current outputs.
      


The terminals of a synchronous, time division multiple access communication system can perform a very high accuracy time of arrival, i. e. relative range measurement on the signals received from the other terminals in same net of users. Based on this, the relative navigation function can be achieved by adding the software modules to the communication system . If some of terminals in the net of users have accuracy knowledge of geographic position, absolute navigation data can also be provided, this paper describes...

The terminals of a synchronous, time division multiple access communication system can perform a very high accuracy time of arrival, i. e. relative range measurement on the signals received from the other terminals in same net of users. Based on this, the relative navigation function can be achieved by adding the software modules to the communication system . If some of terminals in the net of users have accuracy knowledge of geographic position, absolute navigation data can also be provided, this paper describes the principle and software functions of relative navigation and discusses primary error souces.

同步时分多址系统,根据接收到的同一网络中用户的讯号,可以以很高的精度完成讯号到达时间的测量。以此为基础,在通讯系统中增加一些软件模块,可以完成相对导航功能。如果网络中的某些用户,具有准确已知的地理位置,也可以提供绝对导航功能。本文论述相对导航的实现方式,并对其中的主要误差来源进行了讨论。

This paper describes the principle of JTIDS and enphasizes on computer simulation of JTIDS relnav function amd flight trail evaluation.It is shown that the JTIDS relnav function can provide performance which is significantly superior to that of an unaided IN.

本文在介绍JTIDS系统的基本原理基础上,着重闸述了该系统导航功能的计算机模拟及飞行鉴定.经研究表明,JTIDS相对导航功能的性能显然比单纯的惯性导航系统优越得多.

It emphasizes on the position and pseudorange differential methods. In pseudoran ge differential method, the accuracy level of least square solution would improv e when the relative range between the target and chaser vehicles becomes less, b ecause the model error due to linearization would become less. The error of abso lute solution would effect the relative solution in the pseudorange differential method, because it brings errors into the direction cosine matrix. The simulati on results show that the position...

It emphasizes on the position and pseudorange differential methods. In pseudoran ge differential method, the accuracy level of least square solution would improv e when the relative range between the target and chaser vehicles becomes less, b ecause the model error due to linearization would become less. The error of abso lute solution would effect the relative solution in the pseudorange differential method, because it brings errors into the direction cosine matrix. The simulati on results show that the position differential method meets the accuracy reqirem ent of \%RVD\% when relative range is more than 200m, and the pseu dorange differential method meets the accuracy rquiement of \%RVD\% when relativ e range is less than 200m, The relative velocity accuracy of both methods need to be improved.

在伪距差分算法中, 目标飞行器的绝对导航误差通过方向余弦影响相对导航精度, 同时由于线性化观测方程引起的模型误差减小, 使其精度随相对距离减小而提高。仿真结果表明位置差分可以用于相对距离大于200m 阶段, 伪距差分可以用于相对距离200m 以内阶段, 两种方法的相对速度精度都需要提高。

 
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