Microsoft has a full explanation at bit.ly/beJF4q online; the article also explains how certain system files may be causing the update error, and what to do about it.
The matrix computation to update error covariance consumes most of the time.
As the update error is identically applied in both stages (in all stages if the filter chain comprises more partitions), the update errors are linearly dependent, only different by potentially different step-sizes.
We report both on updated error budget for radio-metric observables and the system configurations proposed for the upgrade of ESA's tracking and orbit determination systems.
Unlike the traditional algorithms, the proposed algorithm utilizes VSS which can update the step size adaptively according to the updating error.
In Eq. (2), (varvec{C}_{{varvec{zz}}}^{*e}) refers to the updated error covariance of the resource model, where the overbar denotes the expected values of the ensembles.
In the present work, we estimated an updated error budget for the Lense Thirring effect measurement through the accurate analysis of the orbit of the passive laser-ranged LAGEOS satellites.
Denoting the channel estimation error vector as u n = h − h ˜ n, (n + 1 th update error u(n + 1) can be written as u n + 1 = u n − μ 1 e n x t x T t x t. (37).
That is to say, as the updating error decreases, ZA-VSS-NLMS reduces its step size adaptively to ensure the algorithm stability as well as to achieve better steady-state estimation performance.
