Calhoun, Institutional Archive of the Naval Postgraduate School

    Deterring Violent Non-State Actors in the New Millennium; Strategic Insights, V. 1, issue 10 (December 2002)

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    This article appeared in Strategic Insights, v.1, issue 10 (December 2002)Approved for public release; distribution is unlimited

    A note on mapping user-oriented security policies to complex mechanisms and services

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    The quality of service framework in a heterogeneous computer network environment may provide users and applications with a wide range of security mechanisms and services. We propose a simplified user security interface and a method for mapping this interface to complex underlying security mechanisms and services. Additionally, we illustrate a mechanism for mapping multiple security policies to the same user security interface

    Bulk extractor windows prefetch decoder

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    scan winprefetch is a C++ and thread-safe Windows prefetch scanner for the bulk extractor framework that decodes prefetch files. The decoder analyzes disk images for Windows prefetch files. At the completion of analyzing each prefetch file found on the disk image, a text file is created containing a XML output detailing all found prefetch files.Approved for public release; distribution is unlimited

    Research Naval Postgraduate School, v. 4. no. 1, November 2011

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    NPS Research is published by the Research and Sponsored Programs, Office of the Vice President and Dean of Research, in accordance with NAVSOP-35. Views and opinions expressed are not necessarily those of the Department of the Navy.Approved for public release; distribution is unlimited

    A hierarchical approach to the classification of digital modulation types in multipath environments

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    The views expressed in this report are those of the author and do not reflect the offical policy or position of the Department of Defense or the United States Government.This study presents a hierarchical classification approach to the classification of digital modulation schemes of types 2,4,8-PSK, 2,4,8-FSK and 16,64,256-QAM in low SNR levels and multipath propagation channel conditions. A hierarchical tree-based classification approach is selected as it leads to a relatively simple overall scheme with few parameters needed to differentiate between the various modulation types. Back-propagation neural network units are adopted at each tree node because they offer the flexibility needed to cope with varying propagation environments, as is the case in real-world communications. The selection of robust and well-defined higher-order statistics-based class features is considered and a small number of cumulates and moments chosen to differentiate between all various types of modulation types, except for specific M-QAM types. Simulations show that M-QAM types may be so affected by multipath and fading that higher-order statistic parameters become of very limited use. While being part of the hierarchical procedure, the identification of specific M-QAM types is conducted via equalization algorithms. Extensive simulations show overall classification performances to be strongly affected by the amount of multipath distortion and noise in the transmission channels. Results also show a much higher sensitivity of high-order M-QAM types to fading and multipath propagation distortions than other modulation types.Center for Reconnaissance ResearchMIPR#A448195Approved for public release; distribution is unlimited

    Update NPS / December 2011

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    Army Chief of Staff Odierno Briefed on NPS' Defense Analysis; Educators Gather for Transformative Education Forum; Conference Opens Doors for Young Women in STEM Field

    Research Naval Postgraduate School, v. 1, no. 5, September 2009

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    NPS Research is published by the Research and Sponsored Programs, Office of the Vice President and Dean of Research, in accordance with NAVSOP-35. Views and opinions expressed are not necessarily those of the Department of the Navy.Approved for public release; distribution is unlimited

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    http://archive.org/details/executiveselecti00roweNAN

    Mine Safety Detection System (MSDS)

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    Systems Engineering Project ReportThe search, detection, identification and assessment components of the U.S. Navys organic modular in-stride Mine Countermeasure (MCM) Concept of Operations (CONOPS) have been evaluated for their effectiveness as part of a hypothetical exercise in response to the existence of sea mines placed in the sea lanes of the Strait of Hormuz. The current MCM CONOPS has been shown to be capable of supporting the mine search and detection effort component allocation needs by utilizing two Airborne Mine Countermeasure (AMCM) deployed systems. This adequacy assessment is tenuous. The CONOPS relies heavily upon the Sikorsky MH- 60/S as the sole platform from which the systems operate. This reliance is further compounded by the fact both AMCM systems are not simultaneously compatible on board the MH-60/S. As such, resource availability will challenge the MCM CONOPS as well as the other missions for which the MH-60/S is intended. Additionally, the AMCM CONOPS systems are dependent upon the presence of warfighters in the helicopters above the minefield and as integral participants in the efforts to identify sea mines and to assess their threat level. Model Based System Engineering (MBSE) techniques have been combined with research and stakeholder inputs in an analysis that supports these assertions.mhttp://archive.org/details/minesafetydetect1094517457Approved for public release; distribution is unlimited

    Update NPS / November 2012

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    NPS Graduate Honored with Navy's Stockdale Leadership Award; Army's Cyber Commander Explores NPS Education, Research Programs; Student Dissertation Looks at Privatization of Global Securit
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