Research for ASW

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April 1, 1987
The leadership of the U.S. Navy has recommended that the United States seriously consider the option of attacking Soviet ballistic missile submarines during the conventional phase of a major war. While the vocal debate rages on in the United States, the allies of the U.S. in Europe and elsewhere have been publically silent. This paper addresses some of the questions which might be at the center of the debate. Its purpose is not to seek conclusive answers, but to clarify--for example to point out that the U.S. has no interest in attacking Soviet missile-carrying submarines except on behalf of the security and integrity of the Alliance.
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January 1, 1985
Provides an overview of an apparent shift in Soviet views on the future potential for combating submarines.
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October 1, 1984
U.S. defense officials have often said that the Soviet Union expects Western Antisubmarine Warfare (ASW) forces to attack its Ballistic Missile Submarines (SSBNs) and thus is prepared to defend them in war. These Soviet expectations may have been encouraged by U.S. declaratory policy on the subject--that is, the totality of official and other authoritative statements on strategic doctrine and policy, ASW technology and programs from which Soviet observers reach conclusions about U.S. intentions. This paper reviews U.S. declaratory policy between 1970 and 1985 to determine specifically what that policy has been and then to infer what it has probably meant to the Soviets. It concludes that throughout this period official U.S. declaratory policy has implied an intent to engage in strategic ASW and that the Soviets have had strong reasons to believe that their SSBNs have been and will continue to be targets of U.S. ASW forces.
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March 1, 1983
This paper reviews, from the U.S. point of view, the approach usually taken in analyzing the acoustic detection process, and presents some methods that are used to check whether our descriptions bear any resemblance to what actually happens.
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March 1, 1982
This paper presents a result in the theory of spiral search which gives the probability of detection as a function of time for a class of prior distributions of search-object.
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February 1, 1981

This paper examines some of the problems involved in allocating resources to protection of the fleet. The report concentrates on the contribution of surveillance, antisubmarine, antiair, and antisurface ship systems to protection of the Navy's main fleets.

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December 1, 1975
This memorandum characterizes the prediction value of a plot as a whole by testing all the positions as definite. The displacements (distances) of evaluated submarine contacts from the nearest plotted submarine on the COMINCH submarine chart last issued before the time of the contact serve as a basis for the analysis. A reliability index for several zones is calculated. See also 91 090018.
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June 1, 1974
A computer model was developed to aid in studying naval war scenarios in which anti-shipping operations are the main consideration. Performance of the forces involved is specified by probabilities of carrying out assigned missions, such as penetrating escort screens and attacking convoyed shipping. The model calculates expected values of the losses suffered by these forces. The model programming and inputs are designed to cover a wide range of problems.
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June 1, 1974
This report on Antisubmarine Warfare (ASW) represents a compromise between two major aims, to produce a unified summary of the events and problems of the antisubmarine war on the one hand, and to illustrate the scientific evaluation of naval operations on the other. The approach is fundamentally historical on both accounts.
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June 1, 1974
An application of semi-Markov chains to Antisubmarine Warfare (ASW) tactical systems is illustrated with a hypothetical example. The example involves estimating the probabilities of prosecuting false contacts for varying lengths of time. The use of Markov chains in the analysis of ASW systems, using Fleet ASW Data Analysis Program (FADAP) data, is discussed briefly.
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