查询词典 altazimuth

It can be used as Altazimuth mount when polar axis inclined to 90°.

它可以被用来作为经纬仪挂载时极轴倾斜90 °。

The altazimuth goes up-down and side to side.

地平式的则是上下、左右运动。

As noted in the article "How to Choose a Telescope," telescope mounts come in two basic types: equatorial and altazimuth.

在《如何选择望远镜》一文中提到，望远镜支架有两种基本类型：赤道式和地平式。

According to the experimental result of an altazimuth, it has been proved that Support Vector Machine is superior to Neural Network in the recognition of the intermittent failure under the small training samples, and the BIT false alarm caused by environmental factor can be effectively reduced by this means.

某型号航空地平仪的试验结果分析表明：在小训练样本的情况下，支持向量机比神经网络具有更好的间歇故障识别能力，能够有效地降低由环境因素引起的虚警。

As one of the most often used mountings, the altazimuth mounting satellite tracker has a blind area near the zenith because of the very high azimuth angular velocity, as a result, discontinuous observing data are caused. As for those fast flying satellites, this kind of blind area is very significant because it causes difficulties in precisely determining the satellites' orbits.

作为最常用的一种机架，采用地平式机架的人卫跟踪仪在观测天顶附近区域的目标时，由于方位转速过大而不能连续观测，存在一个固有的天顶盲区，特别是对飞行速度较快的近地卫星，这个盲区的影响是相当大的。

Based on the Jones matrix method and the reflect characteristic of coating film on mirror, the physical model of polarizing beam splitting in altazimuth Coudé telescope is built.

基于镜面膜层复振幅反射特性，采用琼斯矩阵描述方法，建立了偏振分光物理模型，研究了共孔径发射和接收偏振耦合分光的效率问题，并与实验结果进行了比较。

JT91-200 artillety gyro altazimuth is a fix instument which can research the grid north automatically and determine grid north azimuth at any direction.It works by making use of the physical features of gyro and influences of earth rotation.

JT91-200型炮兵陀螺经纬仪是利用陀螺本身的物理特性和地球自转的影响，实现自动寻找其北方向和测定任一方向线的真北方位角的定向仪器。

A three-axis electro-optical tracking system can be used to track any space target in all azimuth. It can rapidly and accurately track the target in the altazimuth zenith blind region by rotating X axis.

三轴光电跟踪系统可以全方位跟踪空间目标，在地平式光电跟踪系统天顶盲区内通过转动X轴实现快速高精度跟踪。

We analyzed and proved that this kind of mounting can cover all useful sky area and has much lower and smoother angular velocity and acceleration than the altazimuth one. IN THIS PAPER WE ALSO DISCUSSED THE RELATIONSHIP BETWEEN TWO MOST OFTEN USED ALT-ALT coordinate systems (SN-ALT-ALT, EW-ALT-ALT coordinate system) and the sidereal hour-angle coordinate system, the horizon coordinate system.

本文推导了ALT-ALT跟踪机架光电人卫跟踪仪原理，分析证明了它在要求的跟踪区域内不存在观测盲区，对同一目标的跟踪角速度和角加速度比地平式机架跟踪仪小且平滑，可实现全天覆盖。

In the experiments of Rayleigh laser guide star for adaptive optics on altazimuth Coudé telescope, the technology of LGS launched and received in the common aperture using polarizing beam splitting scheme is researched.

在地平式折轴望远镜上开展自适应光学瑞利激光导星实验，研究了信标光束同孔径发射和接收偏振分光技术。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。