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Due to the strong dependency of our societies onGlobal Navigation SatelliteSystems and their vulnerability to outages, there is an urgent need foradditional navigation systems. A possible approach for such an additionalsystem uses the communication signals of the emerging LEO satellitemega-constellations as signals of opportunity. The Doppler shift of thosesignals is leveraged to calculate positioning, navigation and timinginformation. Therefore the signals have to be detected and the frequency has tobe estimated. In this paper, we present the results of Starlink signalmeasurements. The results are used to develope a novel correlation-baseddetection algorithm for Starlink burst signals. The carrier frequency of thedetected bursts is measured and the attainable positioning accuracy isestimated. It is shown, that the presented algorithms are applicable for anavigation solution in an operationally relevant setup using an omnidirectionalantenna.

LEO-PNT With Starlink: Development of a Burst Detection Algorithm Based on Signal Measurements