1) survey ship
测量船
1.
The present situation and development trend of foreign survey ship technology;
国外测量船技术现状及其发展趋势
2.
This paper analyses the method of data processing and practical data in flight correction, expatiates the influence of the angular survey error of airplane on the correction accuracy of survey ship and discusses a new method for the angular survey of airplanes.
通过对校飞数据处理方法及实测数据的分析,阐述了飞机姿态测量误差对测量船校飞精度的影响,并针对校飞飞机的姿态测量提出了新的方法。
3.
The paper introduced the basic character of angular survey on survey ship, analyzed the theory of angular survey by GPS, and mainly described the feasibility of practical engineering of the technical attitude determination by GPS on a survey shi
简要介绍了航天测量船测姿系统的特点,概要分析了GPS测姿技术的原理,着重论述了GPS测姿技术在测量船上应用的可行性。
2) TT&C ship
测量船
1.
On the basis of the fuzzy theory,the integrative judging theory is presented,which generally estimates each TT&C ship s position and state designing,confirms the proportion coefficient in the analytic hierarchy process,and analyses the estimated results so as to provide external and quantized scientific basis for the projects′ decision-making.
航天测量船工况设计是海上测控方案设计中最为重要也是最为复杂的一部分。
3) survey boat
测量船
1.
According to the test of Single Antenna GPS RTK in the survey boat, the test result is analyzed in the paper.
试验表明在一般海况下单一移动天线的 GPS RTK是监测测量船实时升沉的又一种有效手段 ,对提高海上测深精度具有重要意义。
4) surveying ship
测量船
1.
It theoreticallysolves the problem of how to eliminate the disturbance of the ship′s magnetic field in any moving condition,and constructs the theoretical base for surveying ships to measure the three-component geomagnetic field at sea.
为测量船在海上测量地磁场的三分量奠定了理论基础。
5) full scale measurement
[船]实船测量
6) ship's position measurement
船位测量
补充资料:测量船
航天测控和数据采集网常用测量船作为水上机动测控站。测量船分为多功能的综合测量船和单一功能的遥测船。它的优点是可在水域任意配置,扩大对航天器的测控范围。测量船的设备与陆地测控站基本相同(见航天测控站)。为保证各种测控设备在船上正常工作,须采取一些必要的技术措施。①船位船姿的测量:测量船在海上运动状态下作业,为了提供精确的船只位置和姿态数据,船上装有船位船姿测量系统。这个系统的关键部件是高精度惯性导航设备,它是全船的位置和方向的基准,能连续、准确地测量出船的经度、 纬度、 速度、船体姿态和航向数据。这些数据可供修正引导数据和稳定船载天线。为消除惯性导航设备的漂移误差,还配备有星体跟踪、卫星导航和水底声纳等设备。海浪等外力作用引起的船体挠曲扭转变形,会使测量设备与惯性导航基准平台不一致,为此在测量基座与惯性平台之间安装挠曲监视系统,为弹道数据提供误差修正量。②跟踪波束的稳定:船体由于风浪的作用产生摇摆(横摇、纵摇和垂荡)。为克服船体摇摆的影响,使跟踪波束相对稳定在惯性坐标系中,可采用2种办法:在甲板上加装稳定平台;在跟踪目标过程中将船体姿态信息送入计算机处理,然后输给跟踪设备的伺服系统进行实时修正,实现对目标的稳定跟踪。③克服电磁干扰:测量船在有限的空间里集中大量的电气和电子设备,不免产生环境噪声和设备间的严重电磁干扰,对设备和天线的布局、电缆的选型和铺设都有严格的要求,须对设备的工作频率和频谱进行精心设计或采取限制和滤波等技术措施。(见彩图)
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