Apparatus and method for determining a correspondence of a position with a reference position

An apparatus for determining a correspondence of a position with a reference position, wherein radio signals of stationary radio transmitters are receivable at the position, having a determiner for determining an identification of a certain radio transmitter and for determining a signal characteristic of a radio signal of the certain radio transmitter at a first time t1, wherein the identification and the signal characteristic of the radio signal of the certain radio transmitter represent at least part of a measurement packet for the position, a processor for post-processing the measurement packet to obtain a post-processed measurement packet for the position wherein the processor for post-processing is implemented to synthesize the signal characteristic of the certain radio transmitter.