Precision of satellite based navigation position solution: A review using NavIC data

Santra, Atanu; Mahato, Somnath; Dan, Sukabya; Bose, Anindya

doi:10.1080/02522667.2019.1703264

Cited by 22 publications

(6 citation statements)

References 7 publications

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“…To examine the performance of SPP and RTK, the 2 and 3dimensional (2D, 3D) precisions parameters are calculated in terms of Distance Root Mean Square (2DRMS), Circle of Error Probable (CEP) for 2D, and Spherical Error probable (SEP), and Mean Radial Spherical Error (MRSE) for 3D as described in [14].…”

Section: Resultsmentioning

confidence: 99%

Position Solution Quality Performance of Compact, Low-cost, Dual Frequency GNSS Modules

Mahato,

Goswami,

Bose

2023

Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023

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GNSS is used for various types of positioning applications.To enhance the quality of positioning, multiple positioning techniques are developed with solution accuracy/ precision varying between meter to mm level. Together with the costly GNSS geodetic receivers, to meet the user requirements of cost-effectiveness, compact, low-cost, single (CLS) and dual-frequency (CLD) modules are commercially available those can be used with compact, commercial patch antennas. This manuscript presents a systematic review on the positioning performance of the CLD GNSS modules for various positioning techniques-SPP, PPP, and RTK with varying baseline lengths. Based on real-time data collected from India, the results show the encouraging potential of such compact modules for GNSS based positioning. It is seen that for the same set of GPSonly data SPP provides 2-3 m solution accuracy and PPP provides mm to decimeter level accuracy for Online and Offline operations respectively. In RTK operation, while used as the Rover the module provides sub-meter solution precision up to a baseline length of 200+ km.

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Section: Resultsmentioning

confidence: 99%

Position Solution Quality Performance of Compact, Low-cost, Dual Frequency GNSS Modules

Mahato,

Goswami,

Bose

2023

Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023

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“…Finally, the robust KF like Student's t-based KF has better robustness but slightly higher computational complexity than the existing state-of-the-art methods. Santra et al [8] have checked the exact approach for satellite navigation. The accuracy parameters for the latitude, longitude, and altitude position solution are specified using Indian regional navigation satellite system (IRNSS/NavIC) dual-frequency (L5+S) data.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Figs. [7][8][9] show that the curves corresponding to the Gaussian distribution of position error in X, Y, and Z-directions due to four algorithms (LSE, KF, EKF, and CKF), along with the mean (µ), standard deviation (σ), and ±1σ bound. Tables 3-5 exhibit the histogram's statistical error distribution that is plotted in Figs.…”

Section: Statistical Error Characterization In 1-dimensional Surfacementioning

confidence: 99%

Enhanced Kalman Filter Navigation Algorithm Based on Correntropy and Fixed-Point Update

Pagoti

Vemuri²,

Mohiddin

2022

Int. j. eng. technol. innov.

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The accuracy of position estimation plays a key role in many of the precise positioning applications such as category I (CAT-I) aircraft landings, survey work, etc. To improve the accuracy of position estimation, a novel kinematic positioning algorithm designated as correntropy Kalman filter (CKF) is proposed in this study. Instead of minimum mean square error (MMSE), correntropy criterion (CC) is used as the optimality criterion of CKF. The prior estimates of the state and covariance matrix are computed in CKF and a novel fixed-point algorithm is then used to update the posterior estimates. The data of a dual-frequency global positioning system (GPS) receiver located at Indian Institute of Science (IISc), Bangalore (13.021°N/77.5°E) is collected from Scripps Orbit and Permanent Array Centre (SOPAC) to implement the proposed algorithm. The results of the proposed CKF algorithm are promising and exhibit significant improvement in position estimation compared to the conventional methods.

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“…The three-state FLL with a KF is adopted in this paper instead of a traditional secondorder PLL. The three-state FLL with the KF can tolerate interference such as radio frequency interference, multipath and ionospheric storms [19]. The proposed carrier loop has two advantages: (a) the FLL has better dynamic performance than the PLL, and (b) the carrier loop filter does not need to be set with the bandwidth in advance, even in weak signal environments with shade.…”

Section: Carrier Loopmentioning

confidence: 99%

A distributed GNSS/INS integrated navigation system in a weak signal environment

Liu¹,

Gu²,

Mou³

et al. 2021

Meas. Sci. Technol.

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Traditional global navigation satellite systems (GNSS) based on vector tracking (VT) have various structures. However, some GNSS measurements have no connection with the dynamic of the user when the loop loses lock in the shade, e.g. urban canyon, tree shade, etc. To improve the navigation accuracy in a weak environment, a distributed GNSS/inertial navigation system (INS) integrated navigation system based on VT is proposed. The change in the pseudo-range rate and pseudo-range from the loop is employed in the GNSS receiver. The reliable navigation results can be output from a distributed navigation filter according to effective GNSS measurements and modified INS information. The field test shows that the proposed distributed GNSS/INS navigation system can achieve reliable navigation in weak signal environments.

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Precision of satellite based navigation position solution: A review using NavIC data

Cited by 22 publications

References 7 publications

Position Solution Quality Performance of Compact, Low-cost, Dual Frequency GNSS Modules

Position Solution Quality Performance of Compact, Low-cost, Dual Frequency GNSS Modules

Enhanced Kalman Filter Navigation Algorithm Based on Correntropy and Fixed-Point Update

A distributed GNSS/INS integrated navigation system in a weak signal environment

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