GPS III will improve position, navigation and timing services and provide advanced anti-jam capabilities yielding superior system security, accuracy and reliability.
GPSIII将改善定位、导航和定时服务，并提供先进的抗干扰能力，提供优秀的系统安全、精度和可靠性。
GPS III will improve position, timing services, navigation and provide advanced anti-jam capabilities yielding superior system security, reliability and accuracy.
GPSIII将增强定位、授时服务和导航能力，具有先进的抗干扰性能，为全球用户提供安全、可靠和准确的服务。
Firstly, a series of reference systems, related to GPS navigation positioning system, such as timing system, reference frame and force model system, are discussed in detail.
本文详细地论述了与GPS导航定位系统一系列有关的参考系统：时间系统、坐标系统和力模型系统。
The Time Standaards of navigation positioning system and Time Service of Timing by Satellite and Satellite Timing Calibration of Timing are introduced.
介绍了导航定位系统的时间基准及实现时间统一的卫星授时技术和定时技术。
As a kind of new timing, measuring distance, navigation and positioning system, the technology of GPS is gradually used in traffic and other fields.
GPS技术作为一种精密的授时、测距、导航、定位系统，已经开始在交通等领域得到应用。
The time of arrival equation of pulse and the timing equation of pulsar navigation in 1PN approximation is derived.
完整推导1PN度规形式下脉冲到达时间方程与脉冲星导航的观测方程，分析导航观测中的相对论效应，给出观测方程的级数展开形式。
As a space infrastructure of national significance, the BDS provides all-time, all-weather and high-accuracy positioning, navigation and timing services to global users.
为全球用户提供全天候、全天时、高精度的定位、导航和授时服务的国家重要空间基础设施。
As a space infrastructure of national significance, the BDS provides all-time, all-weather and high-accuracy positioning, navigation and timing services to global users.
为全球用户提供全天候、全天时、高精度的定位、导航和授时服务的国家重要空间基础设施。
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