| 摘要 |
A passive method is provided for detecting, localizing and identifying magnetic objects moving with respect to one or more magnetometric sensors M1, M2, wherein the signals) from the sensors after filtering are subjected to analytic projection using basis signals (figure 2B) representative of the dipolar or quadripolar signals. Computation of an energy criterion with respect to total energy or the energy of the noise present makes it possible to provide a detection signal, the maximum value of the criterion giving localization of the object, the relative speed of the object and of the sensors. Use of two sensors allows complete localization of the object and computation of its magnetic moments. The basis signals are numerical values at discrete points of a coordinate system D, E defined by the sensors, the object and their relative motions (figure 3). The object may be minerals or a ferromagnetic body for example. |
