Although ionosphere-weighted GNSS parameter estimation is a popular technique for strengthening estimator performance in the presence of ionospheric delays, no provable rules yet exist that specify the needed weighting in dependence on ionospheric circumstances. The goal of the present contribution is therefore to develop and present the ionospheric conditions that need to be satisfied in order for the ionosphere-weighted solution to be mean squared error (MSE) superior to the ionosphere-float solution. When satisfied, the presented conditions guarantee from an MSE performance view, when (a) the ionosphere-fixed solution can be used, (b) the ionosphere-float solution must be used, or (c) an ionosphere-weighted solution can be used.

尽管电离层加权 GNSS 参数估计是在存在电离层延迟的情况下增强估计器性能的流行技术，但尚不存在可证明的规则来指定依赖于电离层情况的所需加权。因此，本贡献的目标是开发和呈现需要满足的电离层条件，以使电离层加权解的均方误差 (MSE) 优于电离层浮动解。当满足时，所提供的条件从 MSE 性能角度保证，当 (a) 可以使用电离层固定解决方案，(b) 必须使用电离层浮动解决方案，或 (c) 可以使用电离层加权解决方案.