An Investigation of the Applicability of the Product Limit Estimate to the Statistical Analysis of Sonar Detection Distributions
Route, Ronald Arthur
Gaver, Donald Paul, Jr.
MetadataShow full item record
The application of the product limit estimate (PL estimate) to the analysis of sonar detection range data was examined using an empirical approach. A sonar detection distribution was assumed to be known and target lateral range distributions corresponding to likely operational scenarios were derived. These distributions were used in a computer simulation to generate sample fleet exercise reconstruction data. For data of small sample sizes, the PL estimates of the sonar detection distribution were compared with the known distribution and were found to be reasonably accurate approximations for all tactical situations tested. The PL estimates clearly outperformed the more readily computable, yet always optimistic, reduced sample (or empirical survival function) estimates. Finally, confidence intervals about the estimate were computed by using the jackknife procedure and the apparent optimism of the resulting confidence intervals was noted. Confidence interval baseline data is provided for future comparison with results from the estimates generated from small sample sizes. Further research is indicated to improve the usefulness of the jackknife to this application.
Showing items related by title, author, creator and subject.
Laksana, Fahmi Chandra (Monterey, CA; Naval Postgraduate School, 2018-09);The Department of Physics at the Naval Postgraduate School recently collected data from a low-frequency vector sensor system off the coast of Big Sur, California, in May 2018. During the test, signals from numerous surface ...
Atkinson, Michael P.; Kress, Moshe; Szechtman, Roberto (Elsevier, 2017);Background: The US invests considerable effort in searching and interdicting drug-trafficking vessels in the Caribbean and Eastern Pacific regions. While some vessels are indeed interdicted, resulting in confiscation of ...
Chang, Tun-Jen (Monterey, California: Naval Postgraduate School, 1993-03);This thesis develops a decision aid to assist in assessing the cost effectiveness of upgrading a subsystem. The procedures developed in this thesis are to estimate the time of onset and the magnitude of the degradation ...