Abstract: Systems and methods of estimating a location of a mobile computing device are provided. For instance, acoustic signals can be received from one or more transmitting devices associated with a real-time locating system. A set of peaks can be selected from the received acoustic signals. A first set of transmitter locations can be assigned to the selected set of peaks. The first set of transmitter locations can be specified by an acoustic model specifying a plurality of transmitter locations within an acoustic environment in which the one or more transmitting devices are located. A first model path trace associated with the first set of transmitter locations can be compared to the received acoustic signals. A location of the mobile computing device can be estimated based at least in part on the comparison.

Abstract: Systems and methods of determining a location of a mobile computing device associated with a real-time locating system are provided. For instance, a mobile computing device can determine a first location of the mobile computing device. The mobile computing device can then receive acoustic-contextual data that is correlated with the first location of the mobile computing device. The acoustic-contextual data can include data associated with one or more transmitting devices, and data associated with an environment proximate the one or more transmitting devices. The mobile computing device can receive one or more signals from at least one of the one or more transmitting devices, and can determine a more accurate second location of the mobile computing device based at least in part on the acoustic-contextual data and the one or more received signals.

Abstract: The present disclosure relates to an acoustic position determination system that includes a mobile communication device and at least one base transmitter unit. The mobile communication device is configured to identify a peak in the received signal, and to de-convolve the signal with all codes that are relevant to the area in which the signal is received. A joint likelihood that a potential code is correct is formed by determining a likelihood based on a signal parameter such as signal-to-noise ratio and a likelihood based on time-of arrival information.