Selection of robust metrics for the position and width of hyperspectral response functions via a simulation approach

The IEEE P4001 hyperspectral camera standard and the need for time-efficient response function test metrics are introduced. Representative center and width metrics applicable to the specification of spatial and spectral response functions are presented. A simulation approach for determining trends in metric behavior as a function of lab collection parameters is described. Algorithm results are enumerated for a variety of hypothetical imager response shapes and width categories under fixed accuracy requirements. Metric flexibility, limiting sample rates, and lab test time estimates are compared and recommendations are made for the P4001 standard. The centroid center metric and standard deviation width algorithm are recommended for both Gaussian and aberrated response shapes when operating at a proposed 5% error tolerance over a specified range of overall response widths, test system scan rates, and electro-optical signal generation levels.