1. A method of estimating an orientation of a physical sensor device, the method comprising: determining at least one sensed vector associated with at least one physical sensor; comparing the at least one sensed vector to at least a portion of a plurality of check vectors, wherein: each check vector of the plurality of check vectors corresponds to an orientation of the physical sensor device; and a reference vector is associated with each check vector, defining a plurality of reference vectors; selecting at least one check vector that is closest to the at least one sensed vector; selecting at least one reference vector associated with the selected at least one check vector; and estimating the orientation of the physical sensor device based at least in part on the selected at least one reference vector.