Debipriya Dutta, Somnath Mahato, Sukabya Dan, Atanu Santra, Priya R Banerjee, A. Bose
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引用次数: 1
摘要
NavIC是印度自己的区域卫星导航系统，以L5和独特的s波段频率运行。目前，NavIC单点定位已经完成，NavIC PPP或RTK无法使用。因此，为了寻找利用NavIC双频操作获得最佳解质量的方法，本文研究了印度东部两个地点的L5和S波段电离层延迟及其双频位置解质量。可以看出，电离层延迟(ionodelay)值在清晨时段(3-6 am IST)最小，s波段的电离层延迟值较小。通过数天的重复数据观察，发现溶液质量在同一时间跨度内也是最好的。因此，在NavIC PPP、差分NavIC或NavIC RTK可用之前，为了在NavIC独立模式下获得最佳的精确定位方案，应在IST上午3-6点期间收集数据。
Ionospheric Effect on position solution accuracy using NavIC
NavIC is India's own regional satellite-based navigation system that operates in L5 and in the unique S-band of frequencies. Still now, NavIC single point positioning is done and NavIC PPP or RTK is not availabel. Therefore, to find out a method for obtaining the best possible solution quality using NavIC dual frequency operation, this paper studies the ionospheric delay in L5 and S bands and the associated dual-frequency position solution qualities from two locations in eastern India. It is seen that the ionospheric delay (ionodelay) values are least during early morning hours (3–6 am IST) and the ionodelay values are less in S-Band. The solution qualities are also found to be the best during that same time span as observed through repeated data for several days. Till the availability of NavIC PPP, differential NavIC or NavIC RTK, therefore, for obtaining the best possible precise location solution in NavIC standalone mode, data should be collected during 3–6 am IST.
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