A simple model for GPS C/A‐code self‐interference. Issue 2 (7th June 2020)

• Record Type: Journal Article
• Authors: Hegarty, Christopher J.
• Is Part Of: Navigation. Volume 67:Issue 2(2020)
• Page Start: 319
• Page End: 331
• Publication Date: 2020-06-07
• Subjects: Navigation -- Periodicals; Navigation (Aeronautics) -- Periodicals; Navigatie; Navigation -- Périodiques; Navigation (Aéronautique) -- Périodiques; NAVIGATION; MARITIME SATELLITES; NAVIGATION SATELLITES; 527.05
• DOI: 10.1002/navi.359
• Languages: English
• ISSNs: 0028-1522

Abstract

Abstract: The GPS C/A‐code is the most widely utilized GNSS signal today. The C/A‐code design includes (1) a short (length‐1023) spreading code that repeats every 1 ms and (2) a low (50 bps) data rate. These two characteristics can lead to undesired interactions between received C/A‐code signals within user equipment. In this paper, a simple model is derived for predicting the impact of C/A‐code self‐interference on receiver performance. The accuracy of the model in predicting C/A‐code self‐interference is assessed through the use of a high‐fidelity GPS receiver software simulation.