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METHOD AND APPARATUS FOR REDUCING TROPOSPHERIC EFFECTS IN GNSS POSITIONING
METHOD AND APPARATUS FOR REDUCING TROPOSPHERIC EFFECTS IN GNSS POSITIONING
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机译:减少GNSS定位中对流效应的方法和装置
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摘要
A method of reducing tropospheric effects in GNSS positioning includes determining a tropospheric delay by: determining zenith delays for geographical areas along a path of GNSS signal travel between a GNSS satellite and the first location of the electronic device, the zenith delays determined using current weather information of the geographical areas, the geographical areas traversed by the path represented by cells of a grid, the cells comprising a selected size; determining path delays for the geographical areas by adjusting the zenith delays based on an angle of the GNSS satellite relative to the electronic device; and summing the path delays to determine the tropospheric delay.
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