Patent ID: 6697300
Filing Date: 2004-02-24
Classification: G01S,G01V

Abstract:
A method of determining the relative position of an array line within a volumetric array connected to a receiver, the method comprising the steps of:generating a specific pseudo-random number (PRN) sequence; sending the specific PRN sequence to a specific transmitter subsystem and at least one receive line of the volumetric array; transmitting the specific PRN sequence by modulating a carrier wave being sent from the specific transmitter subsystem with the specific PRN sequence, the carrier wave having a frequency which is outside an analysis band for the volumetric array and the receiver; identifying the specific PRN sequence at, at least two sensors on the receive line of the volumetric array and determining a transit time for the PRN sequence from the specific transmitter subsystem to the sensors; and communicating the transit time to the receiver for position determination.