Graduate School of Engineering and Applied Science (GSEAS)
The Graduate School of Engineering and Applied Sciences (GSEAS) includes seven departments (Applied Mathematics, Electrical & Computer Engineering, Mechanical & Aerospace Engineering, Meteorology, Oceanography, Physics, and Systems Engineering) and two academic groups (Space Systems and Undersea Warfare). Applying best practices and state-of-the art advances in science and engineering, GSEAS is at the forefront of research that addresses Navy and DOD needs, with a mission to increase the technical capability of the Navy and United States military forces.
Website of the organization
disbanded 2022

Publication Search Results

Now showing 1 - 10 of 951
  • Publication
    Shallow Water Hydrothermal Vent Survey In Azores With Cooperating ASV and AUV
    (2002-01) Healey, A.J.; Pascoal, A.M.; Santos, R.; Meteorology (MR); Graduate School of Engineering and Applied Science (GSEAS)
  • Publication
    New algorithms for the detection and elimination of sine waves and other narrow-band signals in the presence of broadband signals and noise
    (Monterey, California. Naval Postgraduate School, 1992-10) Soderstrand, Michael A.; Rangarao, Kaluri Venkata.; Loomis, Herschel H.; Electrical and Computer Engineering (ECE); Graduate School of Engineering and Applied Science (GSEAS); Electrical and Computer Engineering.
    Four different classes of adaptive signal cancelers can be used to eliminate narrow-band interference from a broadband signal: (1) cascaded second- order notch filters, (2) high-order in-line notch filters, (3) second-order bandpass noise cancelers, and (4) high-order bandpass noise cancelers. Of the four, a structure based on second-order bandpass filters used as signal cancelers is found to perform better than the other structures. The adaptive algorithm for these filters has been proposed by Kwan and Martin and modified by Petraglia, Mitra, and Szczupak. The Kwan and Martin structure can be reduced in hardware complexity without degrading performance using a new adaptive algorithm that out-performs any of the other known structures or algorithms. This new structure is particularly suited to the elimination of narrow-band interference in broadband Bi-Phase Shift-Key (BPSK) signals with and without background noise.... Narrow-band interference removal, Adaptive interference removal, Pipeline digital filters
  • Publication
    Ferroelectricity Newsletter / v.10:no.4 Fall 2002
    (Monterey, California, Naval Postgraduate School, 2002) Space Systems Academic Group (SSAG); Graduate School of Engineering and Applied Science (GSEAS); Space Systems Academic Group
    The Ferroelectricity Newsletter intends to meet expectations by providing information about upcoming meetings worldwide, highlights of recently held conferences, lists of papers to be published in proceedings, reports on research, patents, and other important developments, as well as a calendar of events in each issue, and a yearly index.
  • Publication
    Beam motion induced Doppler shift of an extended object
    (Monterey, California. Naval Postgraduate School, 1995-10) Lee, Hung-Mou; Electrical and Computer Engineering (ECE); Graduate School of Engineering and Applied Science (GSEAS); Electrical and Computer Engineering
  • Publication
    Discrete Verification of Necessary Conditions for Switched Nonlinear Optimal Control Systems, ACA (2004; Boston, Massachusetts)
    (IEEE, 2001-06-30) Ross, I. Michael; Fahroo, Fariba; Modeling, Virtual Environments, and Simulation Institute (MOVES); Mechanical and Aerospace Engineering (MAE); Graduate School of Engineering and Applied Science (GSEAS); Naval Postgraduate School (U.S.); IEEE; Applied Mathematics
    We consider a fairly general class of state-constrained nonlinear hybrid optimal control problems that are based on coordinatizing Sussmann's model. An event set generalizes the notion of a guard set, reset map, endpoint set as well as the switching set. We present a pseudospectral (PS) knotting method that discretizes the continuous-time variables of the problem. The discrete event conditions are imposed over the PS knots leading to a large, sparse, mixed-variable programming (MVP) problem. The Karush-Kuhn-Tucker conditions for the MVP are transformed in a manner that makes them closely resemble the discretized necessary conditions obtained from the hybrid minimum principle. A set of closure conditions are introduced to facilitate commuting the operations of dualization and discretization. An immediate consequence of this is a hybrid covector mapping theorem that provides an order-preserving transformation of the Lagrange multipliers associated with the discretized problem to the discretized covectors associated with the hybrid optimal control problem.
  • Publication
    Space Systems Academic Group Coin
    (Monterey, California. Naval Postgraduate School, 2018-01-24) Space Systems Academic Group (SSAG); Graduate School of Engineering and Applied Science (GSEAS); Space Systems Academic Group
    In 2012, the Space Systems Program Officer Jason ‘Suede’ Pratt issued a challenge coin design contest to the Space System Operations and Space Systems Engineering students at the Naval Postgraduate School. Out of more than a dozen submissions, designs by LT Justin Hendrix and LT Jeff Wilcox were chosen, one for each side of the coin.
  • Publication
    A comment on the derivation of the Langmuir isotherm for the adsorption kinetics
    (Monterey, California. Naval Postgraduate School, 1991) Frenzen, Christopher L.; Applied Mathematics (MA); Graduate School of Engineering and Applied Science (GSEAS); Dept. of Mathematics
  • Publication
    Consolidated tactical network analysis for optimizing bandwidth Marine Corps Support Wide Area Network (SWAN) and TCP accelerators
    (Monterey, California. Naval Postgraduate School, 1993-09) Jenson, Shane B.; Buddenberg, Rex; Bordetsky, Alex; Systems Engineering (SE); Graduate School of Engineering and Applied Science (GSEAS); Information Technology Management
    In 2004, the Support Wide Area Network (SWAN) system added significant capability to the way Marines communicate on the battlefield. Today, the SWAN system is still a critical segment in Marine communications and the TCP accelerator is being evaluated for a potential upgrade. Due to the rapid nature of the SWAN procurement process, in-depth testing procedures have never been established for this system. As a result, there are no procedures to effectively test and evaluate SWAN components for equipment upgrade. Currently, MCSC relies on two IT consulting agencies, the U.S. Army Information Systems Engineering Command and the SWAN lab on Camp Pendleton to evaluate components being considered for upgrade. This thesis explores these testing approaches, specifically addressing the TCP accelerator. It also evaluates the testing efforts and combines them into a single, standardized, repeatable and more accurate test that can be applied to the SWAN system or any other tactical Marine Corps network and their components.
  • Publication
    A theorem of anisotropic absorbers
    (Monterey, California. Naval Postgraduate School, 1997-03-01) Lee, Hung Mou; Systems Engineering (SE); Graduate School of Engineering and Applied Science (GSEAS); Systems Management
    The sum-difference surface current formulation is introduced to treat electromagnetic boundary value problems when anisotropic impedances are specified on both sides of a surface. It can also be applied to impedance coated bodies. This formulation preserves the duality nature of Maxwell equations and carries it over into the algebraic form of the integrodifferential operators in the equations for surface currents. Since a 900 rotation is equivalent to undergoing a duality transform for an incident plane wave, this particular symmetry in the algebraic form of the operators leads to sufficient conditions under which the on-axis backscattering of an anisotropic impedance coated scatterer having a 900 rotational symmetry is eliminated.
  • Publication
    System Architecture for Anti-Ship Ballistic Missile Defense (ASBMD)
    (Monterey, California. Naval Postgraduate School, 2009-12) Hobgood, Jean; Madison, Kimberly; Pawlowski, Geoffrey; Nedd, Steven; Roberts, Michael; Rumberg, Paige; Green, John M.; Systems Engineering (SE); Graduate School of Engineering and Applied Science (GSEAS); Systems Engineering (SE)
    Recent studies suggest that China is developing a new class of ballistic missiles that can be used against moving targets, such as ships. One such technology is anticipated to cover a range of 2,000 kilometers and operate at a speed of Mach 10. The threat is also capable of maneuvering both during the midcourse and terminal flight phases for the purposes of guidance, target acquisition, and countermeasures. This threat could greatly impact the current concept of operations of U.S. Navy ships and alter national defense policies. While current ballistic missile defense solutions are capable of intercepting threats in midcourse and terminal flight phases, no comprehensive system has been developed to counter a ballistic missile threat that can (1) maneuver upon reentry in the endoatmosphere and (2) be used to attack a moving defended area, such as a U.S. Navy carrier strike group (CSG). To fulfill this need, the Anti-Ship Ballistic Missile Defense (ASBMD) team conducted research and developed a notional architecture for a system of systems solution that could be integrated into the existing Ballistic Missile Defense System (BMDS) to effectively counter this threat. This thesis documents the process that was used to select and integrate the proposed ASBMD architecture.