Patent ID: 7843379
Filing Date: 2010-11-30
Classification: G01S

Abstract:
1. Method for determining the spatial distance between two transmitter-receivers within a distance range in the order of magnitude of 10 km, in which both transmitter-receivers set off respectively at least one signal round, a signal round comprising the following steps: transmitting at least one request data frame, containing a sequence of at least two signal pulses with a predetermined pulse time interval, from a first transmitter-receiver setting off the signal round to a second transmitter-receiver at a request transmitting time (T receiving the request data frame at the second transmitter-receiver at a request receiving time (T transmitting a reply data frame, containing a sequence of at least two signal pulses with a predetermined pulse time interval, from the second transmitter-receiver to the first transmitter-receiver at a reply transmitting time (T receiving the reply data frame at the first transmitter-receiver setting off the signal round and detecting a reply receiving time (T at which an evaluation is carried out comprising the following steps: ascertaining a round time interval (T ascertaining a signal transit time (T ascertaining the spatial distance between the first and second transmitter-receivers by multiplying the signal transit time (T and in which the signal rounds are performed in such a way that the reply time intervals (T