Impliments the wrapped kalman filter for azimuthal tracking, and direction of arrival tracking based on the wrapped gaussian distribution. Algorithm originally published in:
Traa, J., & Smaragdis, P. (2013). A Wrapped Kalman Filter for Azimuthal Speaker Tracking. IEEE Signal Processing Letters, 20(12), 1257–1260. http://doi.org/10.1109/LSP.2013.2287125