Where to Dip? Search Pattern for an Antisubmarine Helicopter Using a Dipping Sensor

Download
Author
Yoash, Roey Ben
Atkinson, Michael P.
Kress, Moshe
Date
2018Metadata
Show full item recordAbstract
Antisubmarine warfare (ASW) had been an important topic for military operations research (MOR) modelers and analysts during World War II and the Cold War. It became, however, somewhat out of vogue with the collapse of the Soviet Union and the subsequent reduction of the threat of submarine-related conflicts. In recent years, threats of such engagement have increased, in particular in the South China Sea. The re-emerging interest in this type of warfare, combined with new technologies and resulting tactics, pose a renewed challenge for MOR researchers. e study effective ways to operate a helicopter, equipped with dipping sonar (a dipper) in ASW missions. In particular, we examine the dipping pattern and frequency. A high rate of dipping is desirable as search effectiveness degrades in time as the search area expands. However, dipping too frequently results in overlap with previous dips, which may be wasteful. For a cookie-cutter sensor and a known constant submarine velocity, we prove that disjoint dips are optimal and generate the corresponding optimal dipping pattern. We analyze the effect of factors, such as helicopter speed, submarine speed, sensor detection radius, and travel time to the point of detection, on the optimal dipping pattern. We show that temporal parameters (submarine velocity and helicopter arrival time to the datum) are most critical. We also show that the no-overlap result is not always true; when the submarine's velocity is only known with probability, the optimal dipping frequency may include overlaps.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
Related items
Showing items related by title, author, creator and subject.
-
Anti-submarine warfare search models
ben Yoash, Roey (Monterey, California: Naval Postgraduate School, 2016-09);Stealth and high endurance make submarines ideally suited to a variety of missions, and finding ways to detect, track, and, if necessary, acquire and attack them has long been a topic of research. In this thesis, we study ... -
A helicopter submarine search game
Chuan, Edmund Cheong Kong (1988);This thesis examines a two-person zero sum game where a submarine, after revealing his position by causing a 'flaming datum' , is hunted by a helicopter which arrives on the scene after a time delay. Various helicopter and ... -
Investigation of initial detection models in the Search and Localization Tactical Decision Aid (SALT)
Tisdale, Vance S. (Monterey, California: Naval Postgraduate School, 1990-09);The goal of this thesis is to investigate the initial search planning phase of the Search and Localization Tactical Decision Aid (SALT) developed by METRON, Incorporated of McLean, VA. SALT is a Computer Assisted Search ...