“…In the case where the shapes of the spheroidal scatters are monodispersed and known a priori (i.e., is fixed and known), as assumed so far, the approach described in Ma (2007) for spherical scatterers can be adopted with minor modification for the analysis of spheroidal scatterers. More specifically, the difference between a kernel function, S i , and its approximation by linear combination of the other kernel functions, can be quantified by the minimum value of the following expression (with respect to w 1 , w 2 , ... , and w N , the weights used in the linear combination):…”