The directivity index of an underwater acoustic transducer array can be calculated using the half power beamwidths in both azimuth and elevation planes. The relationship between these parameters is analogous to that found in RF antenna arrays, suggesting that similar mathematical principles apply. Understanding these calculations requires familiarity with acoustic transducer design and beamforming techniques.
PREREQUISITESAcoustic engineers, researchers in underwater acoustics, and professionals involved in the design and analysis of transducer arrays will benefit from this discussion.