Cable tracking by electromagnetic emission

A system for tracking a course of a cable using electromagnetic waves, said system comprising:

• a first transceiver configured for sending a first signal to a second transceiver wirelessly in a linear line, said first transceiver and said second transceiver each comprising a receiver and a transmitter, said second transceiver configured for sending the first signal back to the first transceiver in the linear line;
• a first determination unit configured for determining a first distance between the first transceiver and the second transceiver by determining a total transmission time for a first wireless signal travelling from the first transceiver to the second transceiver and back to the first transceiver, said first transceiver configured for transmitting a second signal into the cable, said first signal and said second signal being phase aligned, said second transceiver configured for receiving the second signal wirelessly from the cable;
• and
• a second determination unit configured for determining a second distance between the first transceiver and the second transceiver by comparing a phase difference between the first signal received by the second transmitter and the second signal received by the second transmitter.

A computer program product, comprising one or more computer readable hardware storage devices having computer readable program code stored therein, said program code containing instructions executable by one or more processors of a computer system to implement a method for tracking a course of a cable using electromagnetic waves, said method comprising

• sending, by a first transceiver to a second transceiver, a first signal wirelessly in a linear line, said first transceiver and said second transceiver each comprising a receiver and a transmitter,
• sending, by the second transceiver back to the first transceiver, the first signal in the linear line;
• determining a first distance between the first transceiver and the second transceiver by determining a total transmission time for a first wireless signal travelling from the first transceiver to the second transceiver and back to the first transceiver,
• transmitting, from the first transceiver into the cable, a second signal, said first signal and said second signal being phase aligned,
• receiving, by the second transceiver wirelessly from the cable, the second signal;
• and
• determining a second distance between the first transceiver and the second transceiver by comparing a phase difference between the first signal received by the second transmitter and the second signal received by the second transmitter.