Effects of physical correlations on long-distance GPS positioning and zenith tropospheric delay estimates

Jin, Shuanggen; Luo, O. F.; Ren, Chao

doi:10.1016/j.asr.2010.01.017

Cited by 63 publications

(20 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With equations (1), (2) and (3), a Kalman filter can be employed for the parameters estimation while given an empirical observation weight and dynamic noise (Hauschild and Montenbruck, 2009;Tu et al, 2014). Moreover, the stochastic model can be adaptively adjusted for a more robust estimation (Jin et al, 2005(Jin et al, , 2010.…”

Section: The Model For Tight Integration Of Gps and Strongmotion Measmentioning

confidence: 99%

Adaptive recognition and correction of baseline shifts from collocated GPS and accelerometer using two phases Kalman filter

Tu¹,

Wang²,

Walter³

et al. 2014

Advances in Space Research

View full text Add to dashboard Cite

Section: The Model For Tight Integration Of Gps and Strongmotion Measmentioning

confidence: 99%

Adaptive recognition and correction of baseline shifts from collocated GPS and accelerometer using two phases Kalman filter

Tu¹,

Wang²,

Walter³

et al. 2014

Advances in Space Research

View full text Add to dashboard Cite

“…However, such assumptions may be unrealistic. If a more accurate assessment of the ADOP-based success rates is required, a more realistic stochastic model should be utilized (Jin et al 2005(Jin et al , 2010.…”

Section: Approximate Adop Computationmentioning

confidence: 99%

“…It is the key to fast and high precision GNSS positioning and it therefore applies to a great variety of GNSS models which are currently in use in navigation, surveying, geodesy and geophysics (Li et al 2004;Buist et al 2010;Giorgi et al 2010Giorgi et al , 2012aJin et al 2010;Buist 2013). For the short baseline, once the ambiguity resolution has been done successfully, a distance resolution in the sub-centimeter range can be obtained immediately, and the precise heading and elevation angle can also be calculated.…”

Section: Introductionmentioning

confidence: 99%

Success rate improvement of single epoch integer least-squares estimator for the GNSS attitude/short baseline applications with common clock scheme

Chen

2014

Acta Geod Geophys

View full text Add to dashboard Cite

The sub-centimeter level relative positioning can be accomplished anytime and anywhere on Earth, provided that the integer ambiguities of the very precise Global Navigation Satellite System (GNSS) carrier-phase observables are correctly resolved. The Integer Least-Squares (ILS) estimator is known to be efficient and optimal for Integer Ambiguity Resolution (IAR) of the unconstrained GNSS model, and the stronger the model strength, the higher the success rate. In this contribution, we investigate the model strength of the common clock scheme, in which the two receivers of the short baseline feed a common clock and the cables have the same delay and many GNSS-based attitude/short baseline applications benefit from this approach. For this scheme, the clock biases between two receivers will be zero and can be omitted, and thus it has a stronger model strength and a higher success rate, compared with the non-common clock scheme. In this contribution, the well-known Ambiguity Dilution of Precision (ADOP), which captures the main characteristics of the ambiguity precision, is utilized to assess the model strengthening when the perfectly synchronized receivers are employed. The mathematical expression of the single epoch ADOP is deduced by the given design parameters, and thus the ADOP-based approximate ILS success rate can be easily computed with the specified measurement set-up which includes the number of available satellites and frequencies and the precision of observation. We focus on the success rate assessment of the common clock scheme for stand-alone, unaided, single-frequency, single epoch observation with only five visible satellites, since it is the most challenging case of GNSS relative positioning and in this case the performance of the employed ambiguity resolution method can be investigated effectively. Thus, one can predict whether or not the required performance will be obtained for the worst case.

show abstract

“…Amiri-Simkooei et al (2009 adopted LS-VCE to assess the noise characteristics of GPS observables using the geometry-free and geometry-based observation models. Furthermore, for GPS long baseline and zenith tropospheric delay (ZTD) estimates, the residual-based stochastic model introduced by Jin et al (2010) can be used. This model is based on the classic variation covariance (VCV).…”

Section: Pmentioning

confidence: 99%

Geometrically constrained kinematic global navigation satellite systems positioning: Implementation and performance

Asgari

Mohammadloo

Amiri-Simkooei

2015

Advances in Space Research

View full text Add to dashboard Cite

Effects of physical correlations on long-distance GPS positioning and zenith tropospheric delay estimates

Cited by 63 publications

References 6 publications

Adaptive recognition and correction of baseline shifts from collocated GPS and accelerometer using two phases Kalman filter

Adaptive recognition and correction of baseline shifts from collocated GPS and accelerometer using two phases Kalman filter

Success rate improvement of single epoch integer least-squares estimator for the GNSS attitude/short baseline applications with common clock scheme

Geometrically constrained kinematic global navigation satellite systems positioning: Implementation and performance

Contact Info

Product

Resources

About