Digital Range-bias Correction at SLR Station Riga-1884
نویسنده
چکیده
A method and technical tools for correction of range-bias caused by variation of photo-multiplier (PM) output pulses in amplitude and shape are considered. The method is based on preliminary estimation of a relationship between certain integral parameter of PM pulses and corresponding range-bias. This integral parameter is measured for each PM pulse in parallel with measurement of basic time interval under real ranging conditions and used further for range-bias correction by data post-processing. Application of this method at the SLR-station Riga-1884 allows to reduce the range-bias many-fold. In particular, the RMS error has been reduced from 14.2 to 3.1 cm for satellite GFO-1 ranging.
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