FREMGANGSMAATE OG INNRETNING FOR UTLIGNING AV FOELSOMHETSTAP

In common with the associated preamplifiers, hydrophones or hydrophone groups, so-called arrays, which are used in transducer arrangements, experience scattering of the sensitivity and gain, with the result that the direction formed with the aid of these received signals becomes defective. … For this reason, the energy values of each hydrophone or array are determined, and from this a mean energy characteristic is determined by regression or approximation. A correction value, with which the received signals are corrected, i.e. optimised, is yielded from comparison of the energy values with the energy characteristic. … An apparatus for implementing this method can be used, in particular, in the signal processing of sonar systems. ……