查询词典 celestial

The result of simulation indicates ballistic missile INS/GNSS integrated navigation system aided with celestial navigation can substantially improve the naviga...

仿真结果表明：采用天文导航系统对弹道导弹的INS/GNSS组合导航系统进行辅助将大幅度提高导弹的导航精度，具有重要的实际意义。

A transparent dome on the top of an aircraft, through which celestial observations are made for navigation.

天文观测舱，领航舱飞机顶部的一个透明圆顶形结构，航行时可通过它作天文观测

The error of inertial navigation systems is cumulated in course of time because of the drift of the measurement unit-gyroscope. Using the celestial navigation system and the information processing technology, the paper disscusses the INS/CNS integrated navigation systems.

惯性导航系统由于其感测元件—陀螺仪的漂移造成导航系统误差随时间不断累积，本文利用天文导航系统，结合信息处理技术，探讨了惯性/天文组合导航系统的相关问题。

RACID's are successfully employed in star tracking and celestial navigation applications where only designated stars within the canopy of space are read and processed for positional vectoring.

RACID已经成功的应用于恒星追踪，天体导航应用，此时，指定的星体可以定位引导的读取和处理。

In this paper, the basic mathematical model was derived by means of two methods, the first is the twostar positioning algorithm in celestial navigation theory and the second is based on the gyro dynamics theory. The results from these two methods are identical and therefore are correct. The latitude is equal to the elevation-angle of the polar gyro. The course is the ideal output from the sensor fitted to the outer gimbal. The longitude is a function of the equator gyro's azimuth and elevation angles.

本论文用天文导航中的双星定位法和经典的陀螺力学原理两种方法建立了ESGM的基本数学模型，并且得到一致的结果，说明所建模型是正确的，即载体的纬度等于极轴陀螺主轴相对水平面的高度角，载体的航向等于极轴陀螺外环轴上角度传感器的理想输出，载体的经度是赤道陀螺的方位角和高度角的函数。

Main courses: satellite geodesy, error theory and data processing, physical geodesy, space geodetic techniques and applications, imaging and mapping, navigation, celestial mechanics, photogrammetry, digital image processing, pattern recognition, radio communications and navigation , digital and analog circuits, such as optimal control.

主要课程：卫星大地测量学、误差理论与数据处理、物理大地测量、空间测地技术及应用、影像与制图、组合导航、天体力学、摄影测量学、数字图像处理、模式识别、无线电通讯与导航、数字与模拟电路、最优控制等。

In order to test the performance of identification algorithm,shorten the development cycle of star sensor,as well as reduce the cost and improve the efficiency of development,a new type of hybrid simulation system for celestial navigation was proposed.

由于航天实验费用大，为测试星敏感器性能和星图识别算法，需在地面构建天文导航半物理仿真试验平台。

There's a definite logic to his analysis, Phillip Sadler, a celestial navigation expert at the Harvard-Smithsonian Center for Astrophysics, told Space.com.

哈佛大学史密森研究中心天体物理学的天体航行专家菲利普赛德勒告诉空间网，&他的分析有自圆其说之处。&

Historically, astronomy has included disciplines as diverse as astrometry , celestial navigation , observational astronomy, the making of calendars , and even astrology , but professional astronomy is nowadays often considered to be synonymous with astrophysics .

从历史上看，还包括天文学科等不同天体测量学，天文导航，观测天文学，制作日历，甚至占星术，但专业天文学是现在通常被认为是同义词，天体物理学。

Since the approach has been coded into the program, if it can be combined with the predication system of the nautical almanac data, the combined two systems can be further developed in a commercial package and dramatically improve the training or education of the current celestial navigation.

本法因已将理论透过数值计算，若能再结合航海历资料库预测系统，未来将可进一步发展成商用套装软体，改善目前商船教育训练或海上实务作业上天文航海的现况。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。