Quickest Detection Framework for Signal Integrity Monitoring in Low-Cost GNSS Receivers

Recently, there has been an increasing interest in GNSS-based safety and liability applications. These applications, which are often associated to urban environments or in general to vehicular applications, have very stringent requirements in terms of accuracy, continuity and integrity of the provided position solution. In this paper, we present simple quickest threat detectors for being used in low-cost GNSS receivers. The aim is to detect the presence of interference and multipath as soon as posible in order to improve GNSS integrity.