TRAVEL TIME MEASUREMENT BASED ON FREQUENCY SWITCHING

摘要

The invention relates to synchronisation, range finding and other measuring in radio systems, which are able to carry out a frequency switch with knowledge of the phase position. The object of the invention is to simplify known methods, uses and devices and to enable a simpler and faster and/or more accurate measurement. The object is achieved by a method for determining at least one first virtual frequency switching time (t1.1) between a first frequency (f1) of a first signal (S1) emitted from a first object and having a first phase progression and at least one first further frequency (f1w.n) of a first further signal (S1w.n) emitted from the first object and having a first further phase progression, wherein the at least one first virtual frequency switching time (t1) is determined as a time, at which the phase relationship between an interpolated and/or received phase position of the first signal (S1) and an interpolated and/or received phase position of the first further signal (S1w.n) corresponds with a predetermined and/or known and/or determined first phase relationship (phi1.1) between the first further phase progression and the first phase progression. The method also includes determining, in an analogue manner, a second virtual frequency switching time (t2.1) between a second frequency (f2) of a second signal (S2) emitted from the second object and having a second phase progression and at least one second further frequency (f2w.n) of a second further signal (S2w.n) emitted from the second object and having a second further phase progression.