name: WLS
full_form: Weighted Least Squares
context: data file format or Yuma format in .txt files for each scenario in the appropriate data file specified in Annex B. For subclause 5, where the assistance data is fixed or is not required on a per-satellite basis, then it is defined in the following subclauses. Where assistance data is required on a per-satellite basis, or where the values of the data also vary with time then it is specified in comma-separated-variable files in the appropriate data file specified in Annex A. These files specify the values to be used for each satellite, indexed by satellite PRN or SV ID, and, where applicable, the values to be used indexed by both time and satellite PRN or SV ID. For subclause 6, the assistance data is defined in the following subclauses. For the aerial GNSS scenarios defined in TS 36.508 [20], the orbital model information is defined and where appropriate is given in Yuma format in .txt files for each scenario in the appropriate data file specified in Annex B.
description: Weighted Least Squares (WLS) is a mathematical technique used in satellite positioning to provide a more accurate location solution by taking into account the estimated variances of pseudorange measurements. It involves calculating a weighting matrix based on these variances and then applying it to adjust the position solution.
explanation: The context describes WLS as a mathematical technique used for improving accuracy in satellite positioning. Its application within satellite navigation systems, along with references to technical calculations like weighting matrices, firmly places it within the realm of technology.
section_title: F.3	WLS position solution
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