Pulsed Radio Frequency Interference (pulsed RFI) can degrade performance of GPS receivers. The authors develop new models for analyzing the impact of a gated, pulsed RFI source that take into account the time-varying nature of overall pulsed waveforms.
Modeling and Analysis of Gated, Pulsed RFI and Its Effect on GPS Receivers
Download Resources
PDF Accessibility
One or more of the PDF files on this page fall under E202.2 Legacy Exceptions and may not be completely accessible. You may request an accessible version of a PDF using the form on the Contact Us page.
We develop two new models for gated, pulsed radio frequency interference (RFI), one for cycle slip performance, and one for bit error performance. We compare the results of these two models to an existing, approximate model that is currently present in ITU-R Report M.2220, herein referred to as the dynamic duty cycle factor (DDCF) model. After deriving our new models, we show through case studies that the new time-varying models often predict much worse performance than the corresponding DDCF counterparts. We therefore conclude that further investigation (either by simulation or laboratory measurement) is warranted to verify the new models presented herein.