The Army is currently conducting a long-term research project to improve the ability to predict enlisted soldier performance. Also, a new Enlisted Personnel Allocation System (EPAS) is being developed to enhance the effectiveness with which performance information is used to match recruits with Army MOS. To maximize the payoff to the Army of the available manpower pool, the assignment system must consider not only the level at which a recruit will perform in different jobs, but also the utility...

Topics: DTIC Archive, Nord, Roy N, ARMY RESEARCH INST FOR THE BEHAVIORAL AND SOCIAL SCIENCES ALEXANDRIA VA,...

Nonlethal strategies are an essential element in the military targeting process to defeat and disrupt terrorist and insurgent networks. The majority of nonlethal options of military power come through Information Operations, including the use of deception. This thesis explores how a deception plan against a terrorist network can be informed and prepared using social network analysis methods. Selecting targets that fragment the network becomes the object of the deception, whereas the actual...

Topics: DTIC Archive, NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEFENSE ANALYSIS DEPT, *DECEPTION,...

The MAGIC computer simulation generates target description data consisting of item-by-item listings of the target's components and airspaces encountered by a large number of parallel rays emanating from any desired attack angle. A combinatorial geometry technique, which defines the locations and shapes of the various physical regions in terms of the intersections and unions of the volumes contained in a set of simple bodies, is used to represent complex target structures. A grid ceil pattern is...

Topics: DTIC Archive, ARMAMENT SYSTEMS INC ANAHEIM CA, *COMPUTERIZED SIMULATION, *MANUALS, AIR SPACE, ANGLE...

One of the challenges associated with defending against ballistic missiles is to discriminate the object of interest among multiple closely-spaced objects (CSOs) that travel on a ballistic trajectory. The discrimination process typically involves the identification and tracking of the object of interest. One approach that can improve discrimination performance is to employ multiple sensors. Multiple-sensor correlation and discrimination involves the integration of sensor measurements collected...

Topics: DTIC Archive, NAVAL ACADEMY ANNAPOLIS MD, *ANTIMISSILE DEFENSE SYSTEMS, *BALLISTIC TRAJECTORIES,...

This study has been motivated by the need to control noise m naval vessels in order to reduce their delectability and hence vulnerability to enemy attack. In this report, a detailed review of controller technologies, methodologies and algorithms that could be used for active noise, Vibration and structural acoustic control in ship structures has been provided. The review focused on a wide range of controller technologies, methodologies and algorithms such as feedforward control; feedback...

Topics: DTIC Archive, MARTEC LIMITED HALIFAX (NOVA SCOTIA), *CONTROL SYSTEMS, *NOISE, *SHIPS, *VIBRATION,...

This report was developed under a STTR contract for topic OSD10-T001, The goal of this project is to develop advanced large-eddy simulation (LES) software based on a high-order spectral element method on unstructured grid for simulation of high speed turbulent reacting flows. The combustion modeling is via the accurate, pdf-based, filtered mass density function (FMDF) method. In FMDF, the turbulence combustion interaction term is naturally closed and does not require additional modeling. Shocks...

Topics: DTIC Archive, ENABLING ENERGY SYSTEMS INC CROWN POINT IN, *SUPERSONIC COMBUSTION, COMPUTERIZED...

This paper presents the results of an experiment to assess the validity of a prototype simulation to train individuals to perform a task as part of a team. The application domain is Maritime Helicopter-Ship operations and the task selected is that of a Landing Signals Officer (LSO) coordinating the approach and landing of a helicopter onboard Canadian Forces frigates. The simulation includes physics-based models of the helicopter, ship, and the environment as well as a human factors approach to...

Topics: DTIC Archive, DEFENCE RESEARCH AND DEVELOPMENT TORONTO (CANADA), *AIRCRAFT LANDINGS, *COMPUTERIZED...

This article reviews instructional features used in demonstration-based training (DBT). The need for fast and effective training and performance support that can be accessed from anywhere is a growing need for organizations. DBT programs are one method to address these needs, but a better understanding of how to maximize the effectiveness of DBT activities is needed. Specifically, beyond the content of the demonstration (i.e., the dynamic example of task performance), what instructional...

Topics: DTIC Archive, STOTTLER HENKE ASSOCIATES INC SAN MATEO CA, *APPLIED PSYCHOLOGY, *DEMONSTRATIONS,...

This program addresses the Navy need for extended firm track range for low altitude cruise missiles through the integration of multiple sensors. Track-Before-Declare (TBD) techniques that utilize signal features are proposed for the synergistic integration of an Electronically Scanned Array (ESA) radar with other sensors for the detection of weak targets. The computer simulation models of the sensors will include the effects of many issues such as finite sensor resolution, limitations on the...

Topics: DTIC Archive, Blair, William Dale, GEORGIA INST OF TECH ATLANTA, *TARGET DETECTION, *MULTISENSORS,...

In the early nineties, Joyner and coworkers introduced the coupling clamp technique in which an isolated cardiac cell can be electrically coupled to either another isolated cardiac cell or to an analog model cell (RC circuit). In brief, an amplifier system does a continuous analog computation of the current that would be flowing between the two cells if there had been an intercellular coupling conductance G sub c, and then provides current inputs to the cells accordingly. Building on this...

Topics: DTIC Archive, Wilders, Ronald, AMSTERDAM UNIV (NETHERLANDS), *COMPUTERIZED SIMULATION,...

The work reported herein details the operation, simulation, testing, and shortcomings of a direct fire weapon (105-mm M35) that has been modified to operate in a fire out-of-battery (FOOB) mode. In FOOB mode, the firing sequence is radically different than that for a conventional weapon. The gun is captured and preloaded in its out-of-battery position prior to firing. This position compares to a conventional system's maximum recoil location. When unlatched, forward momentum is imparted to the...

Topics: DTIC Archive, Gast, Ronald, ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY...

This talk will show how the use of system-level design tools, such as MATLAB and Simulink, can greatly enhance an engineer's ability to quickly and effectively translate product-level and algorithm-level specifications into a working TI DSP-based prototype for the consumer electronics market. Specifically, we will show how to efficiently target typical video processing algorithms, with the high bandwidth and algorithmic efficiency they require, to the TI C6400 platform, and the value of...

Topics: DTIC Archive, Orofino, Donald P, MATH WORKS INC NATICK MA, *COMPUTERIZED SIMULATION, *VERIFICATION,...

Developers of distributed systems routinely construct discrete-event simulations to help them understand and evaluate the behavior of inter-component protocols. Typically written using an imperative programming language, these simulations capture basic algorithmic functionality at the same time as they focus attention on properties critical to distribution, including topology, timing, bandwidth, and overall scalability. We ask the following question: Can simulations also be used to help in the...

Topics: DTIC Archive, Rutherford, Matthew J, COLORADO UNIV AT BOULDER DEPT OF COMPUTER SCIENCE,...

Future military force structure will be the result of present decisions based on judgments about the size and character of the threat and on the resources available to develop and maintain forces. The expected size and type of the threat, the desired rate at which forces should be committed, the length of time they should be sustained, the autonomy desired for the forces and the expected performance of weapons compared to those of potential adversaries are major force-structure judgments. The...

Topics: DTIC Archive, Ipekkan, Ziya, TURKISH GENERAL STAFF ANKARA (TURKEY), *COMPUTERIZED SIMULATION,...

The purpose of smart climatology is to provide information that would be useful in operational planning at lead times of two to four weeks or greater. Decisions made at shorter lead-times are generally informed by forecasts. One of the challenges in designing a new climatology data system -- to include generation, storage, and access -- is anticipating how the data might be used, and therefore how to design the system to provide the most useful data in their most useful format. This report uses...

Topics: DTIC Archive, NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEFENSE RESOURCES MANAGEMENT INST, *OPERATIONS...

Advancing technologies in smallsats provide remote sensing and communications capabilities achievable with a constellation of satellites at a reasonable cost to meet military needs. Like any other nation looking for a cheap but effective solution in that area, Turkey might also benefit from a replacement of its remote sensing assets. Currently, Turkish Armed Forces rely on a limited number of reconnaissance aircraft and Unmanned Aerial Vehicles, which do not provide real-time or near real-time...

Topics: DTIC Archive, NAVAL POSTGRADUATE SCHOOL MONTEREY CA SPACE SYSTEMS ACADEMIC GROUP, *MILITARY...

This report discusses the implementation and testing of wetting and drying (WAD) in the Navy Coastal Ocean Model (NCOM). Note that NCOM is run as a stand-alone ocean model and also as part of the Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS), which provides for one- or two-way coupling among atmosphere, ocean, and wave models. The WAD in NCOM is tested by running simulations of (a) idealized experiments that have analytical solutions that can be compared against, (b) laboratory...

Topics: DTIC Archive, NAVAL RESEARCH LAB STENNIS DETACHMENT STENNIS SPACE CENTER MS OCEAN DYNAMICS AND...

This report describes several modification to the U.S. Coast Guard Vulnerability Model which have recently been incorporated. These modifications are in three areas: 1. Revisions of the plume and puff model for toxic damage assessment, to include remodeling of the plume model to reduce computer time and storage space, computing the dosage for the puff model by direct integration, and transferring dosage values computed in Phase I of the Vulnerability Model directly to Phase II. 2. Revision of...

Topics: DTIC Archive, Tsao, Chi K., ENVIRO CONTROL INC ROCKVILLE MD, *MODELS, *DAMAGE ASSESSMENT,...

Models for calculating multiple round hit probability (the chance of at least one hit) with 4 bombs on a circular target are constructed by computer simulation. Pattern firing and artillery registration are compared to determine which firing method is optimal. It is proved neither one is optimal. Therefore, another method called modified artillery registration is developed. The basic idea of modified artillery registration is feed back superimposed on a pattern. This method always gives higher...

Topics: DTIC Archive, Cha,Ok Hwan, NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF, *HIT PROBABILITIES,...

Topics: DTIC Archive, COMMAND AND CONTROL TECHNICAL CENTER WASHINGTON DC, *WAR GAMES, COMPUTER PROGRAMS,...

This model simulates the operation of a single engine through a very long period of future time. In operating over this extended period, the engine must be removed for repair from time to time. Repairs become necessary on the engine when one of the modules fails prematurely or whenever it requires replacement of an internal life-limited part. The model tracks all the engine removals and all replacements of each module and offending life-limited part through future simulated time. Records are...

Topics: DTIC Archive, Madden,John L, AIR FORCE LOGISTICS COMMAND WRIGHT-PATTERSON AFB OH DIRECTORATE OF...

This work shows the presence of spatial symmetries which may allow a radar system to predict a frequency which will give a near maximum response as the target approaches the radar. If the target is complex then the target may be resolved into simpler components, which have desirable characteristics, and symmetries that may be exploited when tracking the target. An efficient method for the approximate evaluation of the time ambiguity functions for complex pulse envelope shapes has also been...

Topics: DTIC Archive, Cooper,George R, PURDUE UNIV LAFAYETTE IN SCHOOL OF ELECTRICAL ENGINEERING, *SIGNAL...

This report describes a computer model developed at Rand for generating estimates of organizational and intermediate level maintenance personnel requirements for new U.S. Navy aircraft. NAVMAN provides a capability that does not currently exist for systematic estimation of personnel needs during the early stages of aircraft development (before information) about subsystem-peculiar personnel factors are available in detail). The model provides (1) an analytic tool for estimation, (2) capability...

Topics: DTIC Archive, Armstrong,Bruce, RAND CORP SANTA MONICA CA, *COMPUTERIZED SIMULATION, *MANPOWER,...

A monte carlo photon transport code has been used to calculate the photon energy distributions produced by several in-use intense C060 sources at RADC/ES (formerly at AFCRL). In addition, the energy-angle spectra has been determined for photons exiting collimators used with these sources. These spectra may be helpful in understanding the responses of devices and materials irradiated by the source photons. (Author)

Topics: DTIC Archive, Frederickson,A R, ROME AIR DEVELOPMENT CENTER GRIFFISS AFB NY, *COMPUTERIZED...

In the field of military personnel management, there is a need for an improved computerized model as a method of controlling personnel turnover. Such a model should provide the following: (1) Display gain/loss data and a monthly accounting of manning; (2) Show worst case projected manning levels; (3) Describe turnover in meaningful terms; and most importantly, (4) Predict the impact of personnel turnover on combat readiness. This thesis articulates the necessity of turnover control, reviews...

Topics: DTIC Archive, Jonas,Richard E, ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS, *PERSONNEL...

An analytical model is developed and numerical simulations are performed for shock wave propagation into a reentrant corner. The analytical and numerical results are compared with shock tube experiments performed in a 100 deg reentrant corner with a moderate strength (P sub 1/P sub 0 = 2.37, shock overpressure 137.9 kPa) incident shock and a weak (P sub 1/P sub 0 = 1.12, shock overpressure 12.41 kPa) incident shock. The analytical model provides an exact solution of the flow field if shock...

Topics: DTIC Archive, Schmitt,J A, ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD, *MATHEMATICAL...

An analytic modeling approach for image processing algorithms has been developed and applied to the complex object segmentation operation used for target classification/recognition in flir images. (Author)

Topics: DTIC Archive, Frey,R L, HUGHES AIRCRAFT CO CULVER CITY CA IMAGE PROCESSING LAB, *MATHEMATICAL...

The purpose of this study is to investigate the feasibility of designing, building, and deploying a large, stable, multileg, deep ocean cable array with a service life of at least five years, and to assess the cost of such an array. The study first defines the essential desirable features of the array. It then briefly describes a number of candidate configurations which can meet these requirements, pointing out their advantages and disadvantages. The report concludes that such an array is...

Topics: DTIC Archive, Berteaux,Henri O, WOODS HOLE OCEANOGRAPHIC INSTITUTION MASS, *ARRAYS, *OCEANOGRAPHIC...

The psychological, analytic, and programmatic aspects for an integrated set of computer simulation subroutines are presented. The algorithms and modules were designed to add the realism of a human element to a MAIN network systems simulation model of the AN/UPD-X systems exploitation process. This process involves a multi-operator, multi-stage exploitation of targeting information gathered by an airborne side-looking reconnaissance aircraft. The design of generic modules was a primary goal. The...

Topics: DTIC Archive, Siegel,Arthur I, DAYTON UNIV OHIO, *COMPUTER PROGRAM DOCUMENTATION, *COMPUTERIZED...

The pressure amplitude and phase distribution along the interface between a tapered fluid layer and an underlying fast fluid bottom were investigated theoretically. Two computer models, both based on the method of images, were designed: WEDGE 1 assumes that the source is at a finite distance from the apex of the wedge, and WEDGE 2 assumes an infinite distance. The pressure amplitude along the interface rapidly falls off for distances closer to the apex than the distance at which adiabatic mode...

Topics: DTIC Archive, Coppens,Alan B, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *COMPUTERIZED SIMULATION,...

This document describes a static model of air traffic in the Los Angeles basin in the 1995 time frame. The model is a 'snapshot' of a 'peak' instant in 1995, i.e., an instant when the greatest number of aircraft are predicted to be seen at any time in 1995 in the Los Angeles basin. Derived from an earlier model, it contains 1105 instantaneously airborne aircraft. Position, velocity, and other relevant descriptors of each aircraft are provided. The model reflects realistic constraints such as...

Topics: DTIC Archive, Mundra, Anand D, MITRE CORP MCLEAN VA, *AIR TRAFFIC, VELOCITY, MATHEMATICAL MODELS,...

A nonlinear stability analysis of solid rocket propellant burning was carried out, within the framework of a thermal theory for thin (quasi-steady gas phase) heterogeneous flames. This required an integral method in reducing the partial differential equation for the condensed phase heat conduction to an approximate ordinary differential equation. A nonlinear algebraic function, called static restoring function, was found that contains all basic properties of equilibrium and stability of burning...

Topics: DTIC Archive, De Luca,Luigi, POLITECNICO DI MILANO (ITALY) IST DI MACCHINE, *DYNAMICS, *COMBUSTION,...

A nonlinear stability analysis of solid rocket propellant burning was carried out, within the framework of a thermal theory for thin (quasi-steady gas phase) heterogeneous flames. This required an integral method in reducing the partial differential equation for the condensed phase heat conduction to an approximate ordinary differential equation. A nonlinear algebraic function, called static restoring function, was found that contains all basic properties of equilibrium and stability of burning...

Topics: DTIC Archive, De Luca,Luigi, POLITECNICO DI MILANO (ITALY) IST DI MACCHINE, *DYNAMICS, *COMBUSTION,...

The application and development of a number of optical techniques designed to obtain experimental measurements of the internal stress fields present in the matrix phase of epoxy resin based composites is described. The stress fields arise from curing and during the swelling that accompanies water uptake. One experiment enables the radial and tangential components of the stress field present around an individual fibre to be measured using an oblique incidence photoelastic method. Another,...

Topics: DTIC Archive, Candlin,J, BRISTOL UNIV (ENGLAND) H H WILLS PHYSICS LAB, *PHYSICAL PROPERTIES, *FIBER...

Over the past several years the INtegral Theory of Impact has been developed by A.R.A.P. It is already proving to be a useful tool in the design of armor and penetrators. The theory contains the essential physics of the impact process, satisfies all the global conservation equations and is contained in a computer code which is simple and inexpensive to operate. The integral theory requires far less empirical information than some models and avoids the high cost and complexity of multi-element...

Topics: DTIC Archive, Swanson,Claude V, AERONAUTICAL RESEARCH ASSOCIATES OF PRINCETON INC NJ, *COMPUTERIZED...

The work of many researchers has been combined to produce a simplified, analytical, computer code to address the shaped-charge problem. This code named BASC (BRL Analytical Shaped Charge) is programmed in the FORTRAN language. BASC utilizes a modified version of the metal acceleration model of M. Defourneaux of France to account for both the final liner velocity and its acceleration history. The BASC code accurately predicts jet-tip velocity and treats the buildup of the massive lead pellet,...

Topics: DTIC Archive, Harrison, John T, ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD,...

The governing partial differential equations and constitutive relations are presented for the two-phase, axisymmetric, turbulent flow in a gun tube with a rotating projectile. The formulation included the following constitutive models: Noble-Abel gas equation of state, molecular viscosity and thermal conductivity, turbulent viscosity and length scale, intergranular stress relation, interphase drag and heat transfer relations, and a burning rate correlation for solit phase combustion. The...

Topics: DTIC Archive, Gibeling, Howard J, SCIENTIFIC RESEARCH ASSOCIATES INC GLASTONBURY CT, *COMPUTERIZED...

The governing partial differential equations and constitutive relations are presented for the two-phase, axisymmetric, turbulent flow in a gun tube with a rotating projectile. The formulation included the following constitutive models: Noble-Abel gas equation of state, molecular viscosity and thermal conductivity, turbulent viscosity and length scale, intergranular stress relation, interphase drag and heat transfer relations, and a burning rate correlation for solit phase combustion. The...

Topics: DTIC Archive, Gibeling, Howard J, SCIENTIFIC RESEARCH ASSOCIATES INC GLASTONBURY CT, *COMPUTERIZED...

This document is a manual for the application of the computerized Life Cycle Cost (LCC) Model designed for the Full-Scale Engineering Development (FSED) Phase of the SEEK TALK Program. FSED contractors will use the model to perform cost estimates, identify cost drivers and make trade and other cost-related analyses. The manual assists users in establishing input parameter values, making LCC calculations and utilizing results. It also describes how to prepare computer inputs, and run the model...

Topics: DTIC Archive, Cho,C C, MITRE CORP BEDFORD MA, *COMPUTERIZED SIMULATION, *LIFE CYCLE COSTS,...

A non-real time FORTRAN program has been developed to provide a simple, standardized means of applying uniform tests to various HF modem signals. The program stresses the modem signal in the same manner as would be experienced by operation on fading channels with tonal interference. Provisions are made for inserting various transmission filters and for operational scenarios that stress the doppler acquisition and tracking capabilities of a modem. (Author)

Topics: DTIC Archive, Jewett,W M, NAVAL RESEARCH LAB WASHINGTON DC, *HIGH FREQUENCY, *TEST METHODS,...

A system has been developed for rating the corrosivity of aircraft operational environments. This system takes account of weather, atmospheric pollutant, and geographical factors to compute a severity index for three aspects of corrosion maintenance: aircraft washing, repainting, and repair needs. Computed ratings are in good agreement with aircraft corrosion experience and atmospheric testing programs at several locations.

Topics: DTIC Archive, Summitt, Robert, MICHIGAN STATE UNIV EAST LANSING DIV OF ENGINEERING RESEARCH,...

A design is presented for a self-contained, man-mounted data acquisition system to sample and store 12 environmental and physiological parameters. The design consists of one-megabyte of nonvolatile magnetic bubble memory storage, 16 analog input channels, and four digital input channels, and is controlled by a 6502 microcomputer. Operational software was designed and simulation conducted on a Rockwell System-65 minicomputer augmented with two-megabits of magnetic bubble memory. Two types of...

Topics: DTIC Archive, Moore,Kenneth L, AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF...

The DELTA 7S Study was an effort to develop an improved methodology to allocate budget changes within the US Army Materiel Development and Readiness Command (DARCOM) Central Supply System. The methodology developed serves as an alternative to the historical method of distributing fund changes on a pro rata basis. Regression analysis and input-output analysis provide linear equations which describe relationships between resources (dollars), workload, and performance. These equations are...

Topics: DTIC Archive, Craddock,William T, ARMY LOGISTICS MANAGEMENT CENTER FORT LEE VA, *LOGISTICS...

A finite difference Eulerian code, HELP, is employed to study the stress enhancement effects in the vicinity of a crack tip in a rectangular plate which is subjected to a sudden uniaxial loading in the plane strain geometry. The results are in excellent agreement with those obtained from other methods. This demonstrates the usefulness and accuracy of the HELP code in simulating dynamic problems of fracture mechanics.

Topics: DTIC Archive, Chawla, M S, ROCKWELL INTERNATIONAL DULUTH GA MISSILE SYSTEMS DIV, *CRACK...

An elementary review of modelling of fallout processes is presented, with lists of some of the important variables that modules within models are called on to parameterize. A brief historical synopsis of the development of modelling includes a description of efforts with a standardized input data to produce output directly comparable among models, including illustrations of the output over the nuclear yield range of less than 1 KT to 15 MT. Model output is compared to observed data from field...

Topics: DTIC Archive, Hawthorne, Howard A., GENERAL ELECTRIC CO SANTA BARBARA CA DASIAC, *FALLOUT,...

In a computer simulation particles of various energies were followed along their orbits to determine the probability of their absorption during one encounter with an inner satellite of Saturn, giving special consideration to leapfrog and corkscrew escape factors. The time interval between encounters may then be used to yield a measure of particle lifetimes in given satellite L shells. Energy and pitch angle dependence of satellite sweeping efficiency is illustrated. As expected, the small...

Topics: DTIC Archive, Rairden,R, IOWA UNIV IOWA CITY DEPT OF PHYSICS AND ASTRONOMY, *DEPLETION,...

A computer model was written to simulate errors associated with the Coast Guard aids to navigation positioning process with emphasis placed on finding average effects of errors in the system. A mathematical expectation approach was used to model random system elements. The model routines have been designed to study specific positioning situations or, by use of Monte Carlo Methods, a variety of situations as a group. The model was designed for use in planning within the aid positioning...

Topics: DTIC Archive, Millbach,Miles A, COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT, *COMPUTER...

This thesis surveys various methods for modeling land combat and examines the assumptions underlying each method. The users of land combat models are identified according to the nature of the problems that they are trying to solve: weapons system life-cycle management, tactical planning and doctrine, force structuring, education and training, and research and methodology. The distinction between models the modeling process is made and some of its consequences explored. A survey of modeling...

Topics: DTIC Archive, Farmer,William Ted, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *LAND WARFARE, *TACTICAL...

The objective of this study is to establish an initial plan for development of a prototype unified data base (UDB) and of a data generating technology base (DGTB) of human resources information for use in weapon system design. The total study consisted of four tasks: (a) existing Air Force, Army, Navy, and other data systems which could support the UDB were reviewed, (b) the weapon system design and acquisition process was assessed in order to establish the concept of operation of a UDB, (c)...

Topics: DTIC Archive, Thomas,Everett L, CLEMSON UNIV SC, *DATA BASES, *INFORMATION SYSTEMS, *HUMAN...

Procurement decisions regarding Department of Defense satellite systems are usually based upon the assumption of a reliable and dependable launch system. Attempts to relate disruptions of launch operations to numbers of satellites on-orbit are often in the form of discrete-event simulations (requiring significant numbers of data inputs and large amounts of computer time). (The approach which is adopted in this study is a form of continuous simulation (as opposed to discrete-event simulation),...

Topics: DTIC Archive, Krell,Bruce E, RAND CORP SANTA MONICA CA, *COMPUTERIZED SIMULATION, *LAUNCHING, COST...