Procedimiento de detección de la distorsión de una señal GNSS

摘要

The method involves determining a self regressive parametric model of a global navigation satellite system (GNSS) output signal of correlation stage in a GNSS receiver. Linear prediction error between the output signal of the correlation stage and the parametric model is calculated by a calculation unit (203). The error is compared with a detection threshold, and distortion of the transmitted GNSS signal is determined when the linear prediction error exceeds the detection threshold. Distortion information (207) of the signal is transmitted to an availability increasing system of a GNSS system. An independent claim is also included for a GNSS receiver comprising an antenna for receiving a GNSS signal.