SlrProcessing
This program processes SLR normal point or full rate observations. It calculates the linearized observation equations, accumulates them into a system of normal equations and solves it.
To calculate observation equations from the passes, the model parameters or unknown parameters need to be defined beforehand. These unknown parameters can be chosen arbitrarily by the user with an adequate list of defined parametrization. Some of the parametrization also include a priori models.
Lastly it is required to define the process flow of the SLR processing. This is accomplished with a list of processingSteps. Each step is processed consecutively. Some steps allow the selection of parameters, station, or satellites, which affects all subsequent steps.
The timeSeries is used to precompute Earth rotation and station displacements with a uniform sampling. In a second step these values are interpolated to the observation epochs. A sampling of about 10 minutes should be adequate.
It should be noted that GROOPS uses GPS time format, but normal point/full rate data files and CPF files, provided by ILRS data centers are given in UTC time format.
Name | Type | Annotation |
---|---|---|
timeSeries | timeSeries | defines station movements and earth rotation epochs |
satellite | slrSatelliteGenerator | satellites |
station | slrStationGenerator | ground station network |
earthRotation | earthRotation | apriori earth rotation |
parametrization | slrParametrization | models and parameters |
processingStep | slrProcessingStep | steps are processed consecutively |