Vulnerability Analysis Of Civilian L1/E1 Gnss Signals Against Different Types Of Interference

Upon the advent of new civilian GNSS signals, future generation of receivers will be able to use multiple constellations to provide higher availability and better accuracy of positioning and navigation services. Intentional and unintentional interference signals are one of the limiting factors for the proper operation of a civilian receiver. This paper focuses on the vulnerability analysis of civilian L1/E1 signals to common types of narrowband and wideband interference signals. It is shown that the L1/E1 band modernized signals provide some advantages due to their higher power levels and higher signal bandwidth compared to the conventional GPS signals. However, in some interference scenarios, the conventional GPS L1 C/A signals reach a higher availability compared to the modernized signals due to the lower density of their spectral lines.