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。
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。
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。
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。
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。
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。
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