An Accuracy Assessment Method of Water Entry Point for Rocket Assisted Torpedo

A circular error probable (CEP) assessment method based on priori information is presented to estimate water entry point accuracy for solving the problem of fewer test samples in evaluation of rocker assisted torpedoes. This method redefines the producer′s risk in compatibility check to improve the risk-based credibility calculating technique which has strong subjectivity, thus the objectivity of a priori information credibility is enhanced. The application of the present method indicates that the test samples can be reduced without evidently increasing consumers′ and the producers′ risks, and the efficiency of evaluation test can be increased.