The estimation of static baselines using NavIC L5 double-differenced (DD) pseudoranges and carrier phases is investigated. We estimate the baseline with increasing accuracy by using the DD pseudoranges, smoothing the DD pseudoranges with the DD carrier phases, fixing the ambiguities in DD carrier phases, and imposing height-constraints on ambiguity and baseline estimates. Using the DD pseudoranges in estimating a 6-m baseline, the 3D root-mean-square error (RMSE) is 1.71 m. By incorporating the DD carrier-phase measurements and fixing its ambiguities, we achieved a 3D steady-state accuracy of 3 cm and convergence time of 23 minutes for a 350-m baseline in the secondary service area of NavIC. Further performance gains were achieved using a height-constrained solution in which 3D steady-state accuracy and convergence time was improved to 1 cm and 8 minutes, respectively.


    Access

    Download


    Export, share and cite



    Title :

    High-Accuracy Static Baseline Estimation using NavIC L5 Observables


    Contributors:
    A. Althaf (author) / H.B. Hablani (author)


    Publication date :

    2022




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown





    HIGH-ACCURACY BASELINE ESTIMATION USING DIFFERENTIAL NAVIC AND GPS

    Althaf, A. / Hablani, Hari | British Library Conference Proceedings | 2020


    High Accuracy Analysis of NavIC Static Kinematic Performance

    Mahato, S / Anjan, Anjit / Hosalikar, KS et al. | IEEE | 2024


    Accuracy Analysis of NavIC Pseudo Range Point Positioning

    Zhang, Liang / Sun, Pengfei / Wang, Haichun et al. | British Library Conference Proceedings | 2018


    High Accuracy Star Sensor for Indian Regional Navigational Satellite Segment “NAVIC”

    Prasad, B. Krishnam / Kashvap, G. K. / Muralidhara, K.R. et al. | IEEE | 2018