Patent ID: 9310460
Filing Date: 2016-04-12
CPC Classification: A63B,G01S

Claim Text:
1. A method for searching for a transmitter with a detector and a position determining device for determining at least one orientation variation of the detector, the detector comprising at least a first and a second antenna for receiving a transmit signal of the transmitter, wherein the transmit signal includes pulses emitted with a certain transmit pulse period, the method comprising the following steps: a) detecting the vectorial magnetic field strengths (Hv b) detecting at least one orientation difference (φ wherein the method further comprises the following steps for determining a position vector (p c) assuming at least one geometric relation between at least the first and the second measurement point; d) assuming initial values for the position vector (p e) assuming an orientation (α) of a transmitting antenna of the transmitter related to a first presettable reference direction; f) calculating the vectorial magnetic field strengths (Hv g) calculating an error vector (g) between the vectorial magnetic field strengths detected in step a) and the vectorial magnetic field strengths calculated in step f); and h) numerically minimizing a function (E) of the error vector (g) calculated in step g) by altering the assumptions made in steps c) to e) until a presettable tolerance threshold (tol) for the function (E) of the error vector (g) is undercut.