A Three-Dimensional Cooperative Guidance Law of Multimissile System

In order to conduct saturation attacks on a static target, the cooperative guidance problem of multimissile system is researched. A three-dimensional guidance model is built using vector calculation and the classic proportional navigation guidance (PNG) law is extended to three dimensions. Based on this guidance law, a distributed cooperative guidance strategy is proposed and a consensus protocol is designed to coordinate the time-to-go commands of all missiles. Then an expert system, which contains two extreme learning machines (ELM), is developed to regulate the local proportional coefficient of each missile according to the command. All missiles can arrive at the target simultaneously under the assumption that the multimissile network is connected. A simulation scenario is given to demonstrate the validity of the proposed method

LONG RANGE FIRES JOINT FORCE OPERATIONS IN GPS-DENIED AND DEGRADED ENVIRONMENTS

The employment of Long-Range Fires is a high priority for the U.S. Navy, addressing the capability of forces to coordinate an emerging arsenal of deep strike weapons that can be launched from an array of joint assets against critical enemy assets at sea or hardened facilities on land. Additionally, the Long-Range Fires process must be resilient in a degraded or denied environment. However, coordinating Long-Range Fires encompasses a complex set of actions, to include target prioritization and development, command and control, tasking, kinetic and non-kinetic fires, battle damage assessment, rearming and contested logistics. Our approach leverages recent Navy-sponsored MBSE research, simulation, and analysis to include projects involving joint fires within Distributed Maritime Operations and feasibility of deploying hypersonic missiles on U.S. surface ships. We apply a similar approach here but augment it with a system of systems analysis of Long-Range Fires in a degraded and denied environment as part of a timely and relevant joint operational scenario. We examine significant design decisions and operational parameters, as well as appropriate measures of effectiveness, in generating successful Long-Range Fires through systems architecture development and simulation analysis.NPS Naval Research ProgramThis project was funded in part by the NPS Naval Research Program.Civilian, Department of the NavyCivilian, Department of the NavyCivilian, Department of the NavyCivilian, Department of the ArmyApproved for public release. Distribution is unlimited

Implication of FORCEnet on coalition forces

The coalition navies of Australia, Canada, New Zealand, United Kingdom and the United States (AUSCANNZUKUS) are in a period of transformation. They are stepping out of the Industrial Age of warfare and into the Informational Age of warfare. Network Centric Warfare (NCW) is the emerging theory to accomplish this undertaking. NCW describes "the combination of strategies, emerging tactics, techniques, and procedures, and organizations that a fully or even partially networked force can employ to create a decisive war fighting advantage." 1 This theory is turned into a concept through Network Centric Operations (NCO) and implemented through the FORCEnet operational construct and architectural framework. The coalition navies are moving in a direction to develop and leverage information more effectively and efficiently. This will lead to an informational advantage that can be used as a combat multiplier to shape and control the environment, so as to dissuade, deter, and decisively defeat any enemy. This analysis was comprised of defining three TTCP AG-6 provided vignettes into ARENA model that captured Coalition ESG configurations at various FORCEnet levels. The results of the analysis demonstrated that enhanced FORCEnet capabilities such as FORCEnet Levels 2 and 4 would satisfy the capability gap for a needed network-centric ESG force that can effectively counter insurgency operations in Maritime warfare. Furthermore, the participating allied navies in the Coalition ESG should pursue acquisition strategies to upgrade their ship platforms in accordance with our recommendation which indicates that FORCEnet Level 2 is the best value.http://archive.org/details/implicationoffor109456926N

Distributed target-encirclement guidance law for cooperative attack of multiple missiles

The target-encirclement guidance problem for many-to-one missile-target engagement scenario is studied, where the missiles evenly distribute on a target-centered circle during the homing guidance. The proposed distributed target-encirclement guidance law can achieve simultaneous attack of multiple missiles in different line-of-sight directions. Firstly, the decentralization protocols of desired line-of-sight angles are constructed based on the information of neighboring missiles. Secondly, a biased proportional navigation guidance law that can arbitrarily designate the impact angle is cited. The missiles can achieve all-aspect attack on the target in an encirclement manner by combining the biased proportional navigation guidance law and dynamic virtual targets strategy. Thirdly, the consensus protocol of simultaneous attack is designed, which can guarantee that all missiles’ time-to-go estimates achieve consensus asymptotically, and the convergence of the closed-loop system is proved strictly via the Lyapunov stability theory. Finally, numerical simulation results demonstrate the performance and feasibility of the proposed distributed target-encirclement guidance law in different engagement situations

Crossbow Volume 1

Student Integrated ProjectIncludes supplementary materialDistributing naval combat power into many small ships and unmanned air vehicles that capitalize on emerging technology offers a transformational way to think about naval combat in the littorals in the 2020 time frame. Project CROSSBOW is an engineered systems of systems that proposes to use such distributed forces to provide forward presence to gain and maiantain access, to provide sea control, and to project combat power in the littoral regions of the world. Project CROSSBOW is the result of a yearlong, campus-wide, integrated research systems engineering effort involving 40 student researchers and 15 supervising faculty members. This report (Volume I) summarizes the CROSSBOW project. It catalogs the major features of each of the components, and includes by reference a separate volume for each of the major systems (ships, aircraft, and logistics). It also prresents the results of the mission and campaign analysis that informed the trade-offs between these components. It describes certain functions of CROSSBOW in detail through specialized supporting studies. The student work presented here is technologically feasible, integrated and imaginative. The student project cannot by itself provide definitive designs or analyses covering such a broad topic. It does strongly suggest that the underlying concepts have merit and deserve further serious study by the Navy as it transforms itself

A SYSTEMS ANALYSIS OF ENERGY USAGE AND EFFECTIVENESS OF A COUNTER-UNMANNED AERIAL SYSTEM USING A CYBER-ATTACK APPROACH

Existing counter-unmanned aerial systems (C-UAS) rely heavily on radio frequency (RF) jamming techniques that require a large amount of energy. RF jamming results in undesirable consequences such as jamming nearby friendly devices as well as increasing RF footprint of local operators. Current cybersecurity analysis of commercial-off-the shelf (COTS) UASs have revealed vulnerabilities that can be used to conduct C-UAS operations in the cyber domain via cyber-attacks that hijack device-specific communication links on narrow RF bands. This thesis validates the cyber-attack C-UAS (CyC-UAS) concept through reviewing recent C-UAS operational experimental scenarios and conducting analysis on the collected data. Then, a model of a defense facility is constructed to analyze and validate specific mission scenarios and several proposed concepts of operation. A comparison of the energy requirements between CyC-UAS and existing C-UAS techniques is performed to assess energy efficiency and trade-offs of different C-UAS approaches. The comparison of energy requirements between the CyC-UAS prototype and existing C-UAS RF jamming products shows CyC-UAS has significant energy savings while not affecting other telecommunication devices operating at the same frequencies. CyC-UAS is able to achieve the same mission by consuming much less energy and shows promise as a new, lower energy, and lower collateral damage approach to defending against UASs.Outstanding ThesisMajor, Republic of Singapore Air ForceApproved for public release. Distribution is unlimited

MISSION ENGINEERING FOR HYBRID FORCE 2025

This report focuses on the mission engineering process for a hybrid force in 2025. Updated tasking from OPNAV N9I emphasized the necessity of focusing on the benefits of using cost-conservative unmanned systems. Specifically, the focus was placed on the near-peer competitor China and the problems that could be expected in an anti-access/area denial (A2/AD) situation in the South China Sea. The Naval Surface Warfare Center mission engineering approach was used to identify specific vignettes for proposed alternative fleet architectures and then analyzed using combat simulation and optimization models. Research on performance characteristics and cost were compiled on current unmanned systems, specifically those in development at a high technology readiness level. Proposed unmanned systems architectures were developed as solutions to the A2/AD problem and proposed vignettes. The unmanned systems architectures were then run through an optimization model to maximize system performance while minimizing cost. The results of the architecture optimization were then input into modeling and simulation. The overall effectiveness of each architecture in each vignette were then compared to find the most effective solution. An analysis of the results was performed to show the expected mission effectiveness and proposed cost of utilizing the proposed solution unmanned architectures. The most effective architectures included search, counter swarm, delivery, and attack systems.Lieutenant, United States NavyLieutenant, United States NavyLieutenant, United States NavyMajor, Republic of Singapore NavyMajor, Singapore ArmyLieutenant, United States NavyLieutenant, United States NavyLieutenant, United States NavyCommander, United States NavyApproved for public release. Distribution is unlimited