Anomalous harmonics in the spectra of GPS position estimates

By Jim Ray, Z. Altamimi, Xavier Collilieux, Tonie Van Dam. 2008

362 citations recorded by the source corpus.

Subfields: Aerospace Engineering, Astronomy and Astrophysics, Oceanography

View Paper: https://www.semanticscholar.org/paper/204e164bc1d23f130bc5fa6c2bf5120bfbbc94da

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Citations in the corpus

Impact of the arc length on GNSS analysis results (2016, background): “The articles Ray et al. (2008), Griffiths and Ray (2012), and Ray et al. (2013) are relevant in this context.”
Network-based estimation of time-dependent noise in GPS position time series (2015, background): “The origin of flicker noise is less clear, but time-variable satellite geometry, long-term orbit mismodeling, and multipath have been suggested as possible contributors (King and Watson 2010; Ray et al. 2008; Jiang et al. 2014).”
Long GPS coordinate time series: Multipath and geometry effects (2009, background): “[ 67 ] The presence of harmonics of the GPS draconitic year [ Ray et al. , 2008] in our time series demonstrates that an unmodeled subdaily signal, together with a satellite constellation with a repeat time of approximately 10s less than a sidereal day [ Agnew and Larson , 2007; Choi et al. , 2004]…”
The IGS contribution to ITRF2014 (2016, background): “…period and the GPS draconitic year (period at which the orientation of the GPS constellation with respect to the Sun repeats, i.e. 351.4 days; Ray et al. 2008) is first present, followed by a second broad peak covering both the semi-annual period and the 2nd harmonic of the GPS draconitic…”
Impact of Earth radiation pressure on GPS position estimates (2012, methodology): “In addition, orbit related frequencies were identified in geodetic time series such as apparent geocenter motion by Hugentobler et al. (2006) and station displacements derived from GPS tracking data by Ray et al. (2008).”
On the precision and accuracy of IGS orbits (2009, neutral): “9c (from Ray et al. 2008).”
On the nature of GPS draconitic year periodic pattern in multivariate position time series (2013, background): “These mappings may be driven by orbit mismodeling, atmospheric loading, or stationdependent multipath errors [Ray et al., 2008; AmiriSimkooei et al., 2007; Tregoning and Watson, 2009; King and Watson, 2010; Santamaría-Gómez et al., 2011].”
Noise in multivariate GPS position time-series (2009, background): “Recent studies (Amiri-Simkooei et al. 2007; Ray et al. 2007) on GPS coordinate time-series reveal the presence of other periodicities in the spectra (periods of 350 days and its fractions 350/n, n = 2, . . . , 8).”
Reducing the draconitic errors in GNSS geodetic products (2014, methodology): “– Station coordinates (Ray et al. 2008; Collilieux et al. 2007; Amiri-Simkooei 2007; Tregoning and Watson 2009; King and Watson 2010; Santamaría-Gómez et al. 2011; Rodriguez-Solano et al. 2012a; Ostini 2012).”
Correlated errors in GPS position time series: Implications for velocity estimates (2011, methodology): “[10] The resulting significant signals (Figure 1) were centered nearby the harmonics of the GPS “draconitic” year period (approximately 351.2 days or 1.04 cpy), i.e., the revolution period of the GPS constellation in inertial space with respect to the Sun, in agreement with Ray et al. [2008] .”