Studies of the Unbiased Fir Filter for the Time Error Model in Applications to GPS-Based Timekeeping
作者： O. Ibarra-Manzano , Yu. Shmaliy
DOI:
关键词: Interval (mathematics) 、 Global Positioning System 、 Sawtooth wave 、 Control theory 、 Assisted GPS 、 Engineering 、 Polynomial and rational function modeling 、 Noise 、 Frequency offset 、 Finite impulse response
摘要: Abstract : The unbiased FIR filter is investigated to estimate the time interval error (TIE) K-D polynomial model of a local clock in GPS-based timekeeping presence uniformly distributed sawtooth noise. An estimation algorithm proposed and applied TIE measurements crystal without using correction. Based upon this, we show that estimates fit actual values with an uncertainty GPS time. It also demonstrated fractional frequency offset shifts present reference rubidium source 1 PPS signal receiver used.
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