Analysis of various RF-interference effects in GPS L1 C/A code receiver in tracking mode

Abstract

One of the ubiquitous challenges in the usage of GPS/GNSS signals in various applications is Interference. We are mindful that GNSS navigation signals are very weak signals. These signals are very sensitive to interference that disturbs the satellite navigation signals causing reduced accuracy, or sometimes even failure of the receiver to fix the user position. As the usage of GNSS based services are growing rapidly in numerous applications, there is a need to develop a cost effective method to detect and confine various interference signals. This paper describes various types of interference that occur to GNSS signals, the effect on the operation of GPS receiver which is a part of reference while designing a GPS receiver. The overall objective of this paper is to analyse various interference signals that effect GPS L1 C/A Code using an off the shelf GPS receiver in tracking mode. Detail results and conclusion explained at the end.