It is called celestial navigation.

它叫做天文导航。

Autonomous celestial navigation system is a typical nonlinear, non-Gaussian dynamic system.

天文导航系统是典型的非线性和噪声非高斯分布的系统。

China is an old country, its ancient people had knowledge of distant seas and of celestial navigation.

中国是一个古老的国家。它的古代人民具有远洋知识和天体导航知识。

The research of stars map bottom procession in celestial navigation has been done in this dissertation.

本文是对天文导航中星图图像进行底层处理的研究。

Based on the technical requirements of celestial navigation equipment, the overall construction of the star simulator is presented.

对该装置所采用的准直光学系统、数字可调光源进行了研究，并提出了背景光模拟的技术要求。

Summary: Pocket Stars is an astronomy application featuring an integrated star chart, ephemeris, and celestial navigation calculator.

综述：特色应用袖珍星星是一个综合天文星图、星历、天文导航计算器。

The star tracker is the primary part of airborne celestial navigation device. Random vibration is an important invalidation factor of the star tracker.

星体跟踪器是机载天文导航设备的重要组成部分，随机振动是其结构失效的重要因素。

Celestial navigation is an important means for accurate navigation, and the apparent place of celestial bodies is an important data of the celestial navigation.

天文定位是一种重要的导航定位方法，天体的位置是天文定位至关重要的一个数据。

Commercial USES for mathematical workstations are vast: from basic engineering to designer drugs and from gene therapy to celestial navigation, mathematics rules the world.

数学工作站的商业使用群体非常庞大：从基础工程到设计创意，从基因治疗到天体导航，数学统治着整个世界。

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。

New integrated Marine navigation system, the Marine celestial navigation system based on the Electronic Chart Display and Information system (ECDIS), is presented and established in this paper.

本文提出并建立了一种新的舰船组合导航系统，即基于ECDIS(电子海图)系统的舰船天文导航系统。

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。

An autonomous optical navigation scheme for landing of spacecraft on a small celestial body based on navigation camera and laser range finder measurements was studied.

研究了空间飞行器向小天体着陆阶段基于导航相机和激光测距仪的自主光学导航方案。

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。

Star tracker is a sensing system with high accuracy and sensitivity in the guidance and navigation. It offers the direction reference to the aircraft and spacecraft by the use of the celestial stars.

星跟踪器是高精度和高灵敏度的导航和制导用传感设备，它利用天上的恒星为系统提供方向基准。

As satellite navigation AIDS became widely used on vessels in the past few decades, many officers have neglected the traditional practice of celestial fixing.

近十几年来，自卫星导航仪较为普遍地被各类船舶装备和使用后，不少船舶驾驶员已置天文定位于不顾之境地。