A Methodology for the Comparison of Models for Sonar System Applications. Volume I,

摘要

A methodology is presented for making an optimum choice from several candidate models for a specific application. This is accomplished by providing information on several factors: accuracy, computer running time, computer storage required, ease of implementation, complexity of program execution, and available ancillary outputs. The assessment of accuracy is performed by means of quantitative comparisons with a standard. The method consists of obtaining differences between means of two data sets as a function of the independent variable, followed by assigning numerical weighting factors to statistical measures of the differences. In order to illustrate the application of this method, comparisons are made of six transmission loss models available at the Naval Underwater Systems Center at this writing. The models are compared with one another with respect to the parameters given above, and the predictions are compared with a set of PARKA data for accuracy. In this process, numerical rankings are assigned to the models. However, this is done solely for the purpose of illustrating the method, and is not meant as an endorsement of any model. The methodology is in a state of evolution, and the final version may differ in detail from the one presented in this report. (Author)