Estimation of errors of direction finding and localization of a magnetic field source of a dipole model
Fixed, real-time methods of direction-finding and localizing a magnetic-field source of the dipole model are reviewed. For each method an explicit expression for standard deviation in measurement errors is derived. The expressions are verified with the aid of computer simulation of errors. For each method its limiting range is found for the case of equipment with flux-gate magnetometers and gradiometers. Methods are compared one to another and the best method is chosen by stability, maximum range, and accuracy