Patent ID: 9658317
Date: 2017-05-23
CPC Classifications: G01S,H04W

Claim:
1. A method for the correction of an influence to a distance measurement between at least two objects on a basis of phase angle information of transmitted signals between said at least two objects, wherein said influence is a change in the phase angles of the signals due to a relative movement between said at least two objects said method comprising steps of: providing at least one emission and reception component in each of the at least two objects; providing at least one measurement component for determining phase angles of first and second signals at least at the first object; emitting only one signal from each of said at least one emission and reception component of each of said at least two objects at any given time; wherein the emissions of each emission and reception component are performed with interposed time intervals therebetween and wherein each of the following steps a-e is performed at least two times: providing at least one computing unit programmed to calculate changes in measured phase angles; receiving, in said at least one computing unit, said measured phase angles from said measurement component; calculating a change between the measured phase angles using the at least one computing unit; determining the distance between the two objects using the at least one computing unit, wherein the distance change calculated from the change of phase using the at least one computing unit or the change of phase shift due to the distance change between said objects between the transmissions is taken into consideration in the determination of the distance between at least two objects.