Non-invasive contactless filling level determination system and method

Non-invasive contactless fill level determination systems and methods are provided. A filling level determination system for determining a filling level of an item in a container, comprising: a measurement unit for arrangement at a measurement position, the measurement unit comprising a transceiver; and an antenna arrangement coupled to the transceiver for radiating an electromagnetic transmit signal generated by the transceiver from the measurement location towards a target location on the container wall and for returning an electromagnetic first reflected signal resulting from reflection of the transmit signal at the target location towards the transceiver; and a processing circuit coupled to the transceiver of the measuring unit and configured to determine the filling level based on container deformation data indicative of a known relationship between the level of the item in the container and the deformation of the container at the first target position and a timing relationship between the first transmit