GPS satellite position calculation is the key link of GPS navigation and positioning, calculating satellite coordinates quickly and accurately is important to improve positioning speed and precision.
GPS卫星位置计算是进行GPS导航定位的关键环节，快速准确地计算出卫星坐标，对提高GPS定位精度和速度有着重要意义。
Finally, the measures to improve the surveying precision of the Navigation System are summarized.
总结提高激光导向系统测量精度应采取的措施。
Based on the information fusion theory, the integrated scheme can fully utilize information provided by all kinds of navigation sensor subsystems and improve the precision of the system effectively.
采用基于信息融合技术的组合方案充分地利用了各种导航传感器的信息，有效地提高了导航系统的精度。
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