Vector Loop Transfer Functions and Noise Bandwidths. Issue 1 (12th March 2018)

• Record Type: Journal Article
• Authors: Bhattacharyya, Susmita
• Is Part Of: Navigation. Volume 65:Issue 1(2018)
• Page Start: 55
• Page End: 72
• Publication Date: 2018-03-12
• Subjects: Navigation -- Periodicals; Navigation (Aeronautics) -- Periodicals; Navigatie; Navigation -- Périodiques; Navigation (Aéronautique) -- Périodiques; NAVIGATION; MARITIME SATELLITES; NAVIGATION SATELLITES; 527.05
• DOI: 10.1002/navi.219
• Languages: English
• ISSNs: 0028-1522

Abstract

Abstract: This paper develops a transfer function formulation of the non‐coherent vector tracking architecture for Global Navigation Satellite System receivers. From the transfer function model, a definition of vector loop noise bandwidths is introduced. Simulation results illustrate that vector noise bandwidths are functions of the carrier power to noise density, C/N0, of individual channels, the relative magnitudes of C/N0 across channels, and user‐satellite geometry. This paper improves the understanding of the vector architecture by deriving its noise bandwidths and showing some noteworthy inherent features of the vector noise bandwidths with user‐satellite geometry and C/N0 . A preliminary analysis is also provided, which indicates that vector noise bandwidths have the potential to serve as useful metrics for designing scalar tracking loops with external Doppler aiding. Copyright © 2018 Institute of Navigation.