On analytic design of loudspeaker arrays with uniform radiation characteristics

Some notes on analytical derived loudspeaker arrays with uniform radiation characteristics are presented. The array coefficients are derived via analy tical means and compared with so-called maximal flat sequences known from t elecommunications and information theory. It appears that the newly derived array, i.e., the quadratic phase array, has a higher efficiency than the B essel array and a flatter response than the Barker array. The method discus sed admits generalization to the design of arrays with desired nonuniform r adiating characteristics. (C) 2000 Acoustical Society of America. [S0001-49 66(00)00901-2].