A Novel Quasi-Open Loop Architecture for GNSS Carrier Recovery Systems. (3rd June 2012)

• Record Type: Journal Article
• Authors: Tahir, Muhammad; Presti, Letizia Lo; Fantino, Maurizio
• Other Names: Fernández-Prades Carles Academic Editor.
• Is Part Of: International journal of navigation and observation. Volume 2012(2012)
• Publication Date: 2012-06-03
• Subjects: Navigation -- Periodicals; Remote sensing -- Periodicals; Geographic information systems -- Periodicals; Global Positioning System -- Periodicals; Earth sciences -- Periodicals; Environmental monitoring -- Periodicals; Navigation; Télédétection; Systèmes d'information géographique; GPS; Sciences de la terre; Environnement -- Surveillance; Earth sciences; Environmental monitoring; Geographic information systems; Global Positioning System; Navigation; Remote sensing; Periodicals; Electronic journals; 629.045
• DOI: 10.1155/2012/324858
• Languages: English
• ISSNs: 1687-5990

Abstract

Abstract : The problem of designing robust systems to track global navigation satellite system (GNSS) signals in harsh environments has gained high attention. The classical closed loop architectures, such as phase locked loops, have been used for many years for tracking, but in challenging applications their design procedure becomes intricate. This paper proposes and demonstrates the use of a quasi-open loop architecture to estimate the time varying carrier frequency of GNSS signals. Simulation results show that this scheme provides an additional degree of freedom to the design of the whole architecture. In particular, this additional degree of freedom eases the design of the loop filter in harsh environments.