| Optimal Parachute Guidance, Navigation, and Control for the Affordable Guided Airdrop System (AGAS) |
JUN 2000 |
123 pages |
| Authors:
Timothy A. Williams; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
 | This study is a continuation of a previous work concerning the Affordable Guided Airdrop System (AGAS), a parachute system that integrates low- cost guidance and control into fielded cargo air delivery systems. This thesis sought to expand upon the previous study and provide more information and research on this innovative and critical military system. Several objectives and tasks were completed in the course of this research and ... |
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| Case Study: Development of a Baseline Controller for Automatic Landing of an F-16 Aircraft Using Linear Matrix Inequalities (LMIs) |
MAY 2000 |
|
| Authors:
Danbing Seto; Enrique Ferreira; Theodore F. Marz; CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST
|
 | In this report, we present preliminary results on the design of the baseline controller for an F-16 aircraft automatic landing system using linear matrix inequalities (LMI)-based approaches. We start with a general study of aircraft control and dynamics to gain knowledge of the structure of an aircraft dynamic model and its inner loop control system. We then identify a linear model along the glide path for ... |
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| Mixed Strategies for the Interception of Blind Highly Maneuvering Targets |
28 APR 2000 |
38 pages |
| Authors:
Josef Shinar; Tal Shima; TECHNION - ISRAEL INST OF TECH HAIFA
|
| This Annual Technical Report, being the final report on a long-term investigation, has two objectives. It describes the technical effort performed in the last year and also summarizes the results of the entire (two and half years) investigation with an outline of the directions for future research. Most missile guidance laws were developed using linearized two-dimensional models assuming constant speed and maneuverability. Simulation results demonstrated ... |
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| Artificial Intelligence Methodologies in Air Transportation Network Routing and Scheduling |
14 APR 2000 |
5 pages |
| Authors:
Ervin Y. Rodin; WASHINGTON UNIV ST LOUIS MO DEPT OF SYSTEMS SCIENCE AND MATHEMATICS
|
| The objectives of this final report are to support faculty, as well as graduate and undergraduate students, to develop improved methodologies for the scheduling and routing of military transport aircraft; and to do so in collaboration with personnel from Flight XPY at the USAF Air Mobility Command, Scott AFB, IL. |
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| Safe Flight 21 Master Plan Version 2.0 |
APR 2000 |
108 pages |
| Authors:
MITRE CORP MCLEAN VA
|
| Safe Flight 21 is a cooperative government/industry effort to evaluate enhanced capabilities for Free flight based on evolving Communications, Navigation and Surveillance (CNS) technologies. Safe Flight 21 will demonstrate the in-cockpit display of traffic, weather and terrain information for pilots and will provide improved information for controllers. The new technologies on which this program is based include the Global Positioning System (GPS), Automated Dependent Surveillance - Broadcast (ADS-B), Flight Information ... |
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| Flight Testing of Radio Navigation Systems (Les Essais en Vol des Systemes de Radionavigation) |
APR 2000 |
|
| Authors:
NATO RESEARCH AND TECHNOLOGY ORGANIZATION NEUILLY-SUR-SEINE (FRANCE)
|
| Civil as well as military aviation relies on a number of radio navigation systems including satellite systems in space. As new systems are developed extensive flight testing is needed to ensure that the design parameters are met. The approval of every new installation is dependent on flight tests. Moreover all installations require flight inspection in well- defined time periods. The development and application of cost effective flight test techniques and ... |
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| An Investigation of the Non-Distributed Flight Reference (NDFR) Ownship Status Symbology |
APR 2000 |
70 pages |
| Authors:
Michael T. Brewer; AIR COMMAND AND STAFF COLL MAXWELL AFB AL
|
| Air Force tactical aircraft, such as the F-15, F-16, and future fighter/attack aircraft, will all be equipped with helmet-mounted displays (HMD) to maintain superior air combat capability in future conflicts. HMDs allow the pilot to point weapons and to quickly slew sensors at visual range targets in either an air-to-air or air-to-ground environment. Further improvements include combining HMDs with panoramic Night Vision Goggles to allow pilots ... |
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| Simulation of the North Atlantic Air Traffic and Separation Scenarios |
FEB 2000 |
180 pages |
| Authors:
Christine M. Gerhardt-Falk; E. A. Elasyed; Dale Livingston; Brian Colamosca; FEDERAL AVIATION ADMINISTRATION TECHNICAL CENTER ATLANTIC CITY NJ
|
| This report presents a comprehensive study of the air traffic over the North Atlantic (NAT) Ocean. The main purpose of the study is to assess the fuel savings benefit of proposed changes to the separation standards in the NAT Minimum Navigation Performance Specification (MNPS) airspace. The report describes in detail the purpose of the study, literature survey of relevant work, requirements for the air traffic ... |
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| Visual and Auditory Sensitivities and Discriminations |
FEB 2000 |
106 pages |
| Authors:
David Regan; YORK UNIV NORTH YORK (ONTARIO)
|
| Errors in judging absolute time to collision using monocular information alone range from 2 to 12% and from 2.5 to 10% using binocular information alone, but only 1.3 to 2.7% using the combination. For small targets, judgements are based entirely on binocular information. Individuals make large errors in judging absolute time to collision with a rotating nonspherical object when judgements are based on monocular information, ... |
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| Artificial Intelligence Techniques for Pilot Approach Decision Aid Logic(PADAL) System |
28 JAN 2000 |
67 pages |
| Authors:
Rob Richards; STOTTLER HENKE ASSOCIATES INC BELMONT CA
|
| In this project the objective was to improve Landing Signal Officer (LSO) decision making by using Artificial Intelligence (Al) and other techniques to develop pilot trending and ship oscillation decision support aids. During the pursuit and satisfaction of the primary objective, several sub-objectives were met. The project developed pilot trending and ship oscillation recognition techniques and software by investigating the use of Fourier, wavelet, neural networks, ... |
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| An Investigation of Using a Virtual Target for Air-to-Air Tracking Handling Qualities (HQ) Evaluation (HAVE TRACK) |
JAN 2000 |
126 pages |
| Authors:
Robert L. Behnken; Nigel J. Simpson; Earl W. Stolz; Edward V. Cassidy; Troy A. Asher; AIR FORCE FLIGHT TEST CENTER EDWARDS AFB CA
|
| This technical report presents the results of the Investigation of Using a Virtual Target for Air-to-Air Tracking Handling Qualities (HQ) evaluation (HAVE TRACK). The objective of the project was to evaluate the use of flight test head-up display (HUD) tracking tasks as a replacement for the aircraft tracking tasks currently used to evaluate HQ. Specifically, air-to-air tracking tasks were evaluated to determine if a target aircraft ... |
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| Display Booth Arrangement and Trifold Handout for Global Summit on International Aviation Infrastructure |
2000 |
13 pages |
| Authors:
Ronald Ciecka; NAVAL AIR WARFARE CENTER AIRCRAFT DIV PATUXENT RIVER MD
|
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| EGI Lessons Learned - A Common Thread |
2000 |
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| Authors:
Christine Gillin; NAVAL AIR WARFARE CENTER AIRCRAFT DIV PATUXENT RIVER MD
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| Stability of Wireless Networks for Mode S Radar |
2000 |
25 pages |
| Authors:
Jay P. Chawla; Steven I. Marcus; Mark A. Shayman; MARYLAND UNIV COLLEGE PARK INST FOR SYSTEMS RESEARCH
|
| Stability issues in a connectionless, one-hop queueing system featuring servers with overlapping service regions (e.g., a Mode Select (Mode S) radar communications network or part of an Aeronautical Telecommunications Network (ATN) network) are considered, and a stabilizing policy is determined in closed-loop form. The cases of queues at the sources (aircraft) and queues at the servers (base stations) are considered separately. Stabilization of the system with exponential service times and ... |
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| Lincoln Laboratory Evaluation of TCAS II Logic Version 7. Appendices - Volume 2 |
13 DEC 1999 |
|
| Authors:
Barbara J. Chludzinzki; MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
|
| Volume 1 described the analysis procedures and inputs. This volume presents tables and figures that were generated during the assessment to the TCAS Logic Performance. |
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| Wide Area Augmentation System (WAAS) |
Dec-1999 |
6 pages |
| Authors:
D Ormand; RAYTHEON SYSTEMS CO FULLERTON CA
|
| Global Positioning System (GPS) navigation signals alone are not adequate to support aviation navigation. GPS accuracy is acceptable for all but precision approach applications, but integrity, continuity and availability are lacking. Wide Area Augmentation System (WAAS) hardware has been installed and used for testing since last summer. Wide Area Reference Stations receive GPS signals and forward them to Wide Area Master Stations for corrections processing. Augmentation messages are sent to ... |
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| WAAS Network Time Performance Using WRS Data |
Dec-1999 |
13 pages |
| Authors:
Cheryl Griffith; Stephen Peck; Peter Diamond; RAYTHEON CO WALTHAM MA
|
| Raytheon Systems Company is currently designing the algorithms of the FAA's Wide Area Augmentation System (WAAS). This paper will briefly overview the WAAS network time (WNT) algorithms and their integration into the overall system. The WAAS system is required to provide users with orbit, clock, and ionosphere corrections for single-frequency measurements of the GPS signal. The clock corrections will be made in the WAAS network time (WNT) reference scale. This ... |
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| Air Traffic Control: Status of FAA's Implementation of the Display System Replacement Project |
11 OCT 1999 |
14 pages |
| Authors:
GENERAL ACCOUNTING OFFICE WASHINGTON DC RESOURCES COMMUNITY AND ECONOMIC DEVELOPMENT DIV
|
| We appreciate the opportunity to provide our observations on the status of the Federal Aviation Administration's (FAA) implementation of the Display System Replacement (DSR) project. DSR, which replaces the controllers' workstations and other equipment in the nation's en route centers, is one of FAA's major projects under the air traffic control modernization program. In 1981, FAA began a multibillion-dollar modernization effort to improve the safety, the capacity, and the efficiency ... |
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| Development of a Helicopter Vortex Ring State Warning System Through a Moving Map Display Computer |
SEP 1999 |
153 pages |
| Authors:
David J. Varnes; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The need for improved pilot aids has become a high priority item for pilots and aircrews operating at sea and ashore. Pilot aids such as the moving map display, GPWS, collision, and vortex ring state (VRS) warning systems will significantly enhance aircrew situational awareness and safety. Many more of today's aircraft mishaps are a result of pilot error, which includes a loss of situational awareness. ... |
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| An Interactive Virtual Environment for Training Map-Reading Skill in Helicopter Pilots |
SEP 1999 |
121 pages |
| Authors:
Timothy D. McLean; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Currently, Student Naval Aviators are trained to interpret 1:50,000 scale contour maps by watching VHS videotapes. These tapes show a helicopter moving about twice its normal speed over desert terrain. Primarily due to the lack of interactivity in these videos, students often make mistakes very early in the videotaped flight. The helicopter does not stop until the tape is over, hence, the training evolution quickly ... |
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| Implications of Reduced Involvement in En Route Air Traffic Control |
AUG 1999 |
157 pages |
| Authors:
Ben Willems; Todd R. Truitt; FEDERAL AVIATION ADMINISTRATION TECHNICAL CENTER ATLANTIC CITY NJ
|
| The expansion of the National Route Program will allow airlines to be more flexible in filing and amending flight plans. This may result in a change in the role of the air traffic control specialist from direct control to a position with more monitoring responsibilities. This change may result in a reduction of situation awareness, memory and vigilance. This experiment investigated the effect of moving a controller from the current ... |
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| Digital Map Technology for GPS-Based Navigation and Terrain Avoidance System |
31 JUL 1999 |
94 pages |
| Authors:
Kimberly L. Dubbs; Robert A. Severino; DUBBS AND SEVERINO IRVINE CA
|
| The U.S. Military has a need for a covert (non-emitting) system that will assist the pilot to navigate using terrain following techniques while maintaining maximum safety against terrain impact. This project addresses the software development and system integration of a GPS-Based terrain avoidance system. The system extrapolates the region immediately ahead of the aircraft and alerts the pilot when the current flight vector intercepts the safety ... |
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| Testing and Evaluation of an Integrated GPS/INS System for Small AUV Navigation |
01-Jul-1999 |
22 pages |
| Authors:
A J Healey; X Yun; E R Bachmann; R B McGhee; R H Whalen; R L Roberts; R G Knapp; M J Zyda; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| A Small AUV Navigation System (SANS) is being developed at the Naval Postgraduate School. The SANS is an integrated GPS/INS navigation system composed of low-cost and small-size components. It is designed to demonstrate the feasibility of using a low-cost strap-down Inertial Measurement Unit (IMU) to navigate between intermittent GPS fixes. The present hardware consists of a GPS/DGPS receiver, IMU, compass, water speed sensor, water depth sensor, and a data processing ... |
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| Improving Pilot/ATC Voice Communication in General Aviation |
JUL 1999 |
27 pages |
| Authors:
Daniel G. Morrow; O. V. Prinzo; NEW HAMPSHIRE UNIV DURHAM
|
| The influence of Air Traffic Control (ATC) instruction format (grouped vs. sequential presentation) and message length on General Aviation pilot communication was investigated in a simulated flight environment using the Civil Aeromedical Institute's (CAMI's) Basic General Aviation Research Simulator (BGARS). Prior to flying the simulator each pilot was provided with familiarization training, listened to and read back ATC messages spoken in either grouped or sequential format (depending on their assigned ... |
|
| Workshop: Future Directions in Systems and Control Theory, Wednesday, June 23. Viewgraphs - Volume 2 |
23 JUN 1999 |
121 pages |
| Authors:
Robert R. Tenney; A. Pascoal; I. Kaminer; P. Oliveira; C. Silvestre; ALPHATECH INC BURLINGTON MA
|
| This report contains several reports concerning future directions in systems and control theory. |
|
| Closely Supervised Reactive Control of an Uninhabited Aerial Vehicle |
JUN 1999 |
139 pages |
| Authors:
Roy G. Glassco; AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH SCHOOL OF ENGINEERING
|
| Closely Supervised Reactive Control is an alternative control method for uninhabited aerial vehicles that incorporates some of the benefits of both manual and autonomous operations. Utilizing an onboard camera, an operator can control a UAV by manually choosing desired targets. The flight path of the uninhabited vehicle is determined autonomously from the camera gimbal angles. The operator of the payload (i.e. camera), has close supervision of the aircraft. The aircraft, ... |
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| Air Traffic Control System Baseline Methodology Guide |
JUN 1999 |
88 pages |
| Authors:
Kenneth R. Allendorefer; Joseph Galushka; FEDERAL AVIATION ADMINISTRATION TECHNICAL CENTER ATLANTIC CITY NJ
|
| The Air Traffic Control System Baseline Methodology Guide serves as a reference in the design and conduct of baseline studies. Engineering research psychologists are the intended audience for the Methodology Guide, which focuses primarily on techniques for studying the interaction between ATC systems and the controllers who use them. The Methodology Guide provides the following information: (a) descriptions of and references to past baselines that have successfully used the methodology, ... |
|
| Guidelines for the Use of Color in ATC Displays |
JUN 1999 |
60 pages |
| Authors:
Kim Cardosi; Dan Hannon; JOHN A VOLPE NATIONAL TRANSPORTATION SYSTEMS CENTER CAMBRIDGE MA
|
| Color is probably the most effective, compelling, and attractive method available for coding visual information on a display. However, caution must be used in the application of color to displays for air traffic control (ATC), because it is easy to do more harm than good. The only thing that is truly obvious about the use of color on displays is that its benefits and drawbacks depend upon the task. This ... |
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| Trajectory Prediction Accuracy Report: User Request Evaluation Tool (URET)/Center-TRACON Automation System (CTAS) |
MAY 1999 |
547 pages |
| Authors:
Mike M. Paglione; Hollis F. Ryan; Robert D. Oaks; J. S. Summerill; Mary L. Cale; FEDERAL AVIATION ADMINISTRATION TECHNICAL CENTER ATLANTIC CITY NJ
|
| This report presents the results of an independent analysis of the accuracy of the trajectory modelers implemented in me User Request Evaluation Tool (URET) and Center-TRACON Automation System (CTAS) prototypes. These results are based on the completion of the first phase of a planned two phased effort. As originally envisioned, efforts during Phase I would develop a generic methodology to measure the trajectory prediction accuracy of any decision support tool ... |
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| Integrated Detection and Estimation Using Multisensor and Distributed Processing |
MAY 1999 |
24 pages |
| Authors:
Rangasami L. Kashyap; PURDUE UNIV LAFAYETTE IN SCHOOL OF ELECTRICAL ENGINEERING
|
| This research deals with the solution of detection and estimation problems encountered in a variety of target tracking problems encountered in a Ballistic Missile Defense environment. We propose five broad classes of problems. The first problem deals with the guidance for interceptors tracking maneuverable targets. We need to forecast the time of intersection and the bearing angle of the target, and have to update them continuously. The second problem is ... |
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| Gulf of Mexico Helicopter Offshore System Technologies Engineering Needs Assessment |
MAY 1999 |
33 pages |
| Authors:
Edmund J. Koenke; Elisabeth J. Carpenter; Larry Williams; Caesar Caiafa; SYSTEM RESOURCES CORP EDGEWOOD MD
|
| The National Aeronautics and Space Administration (NASA), in partnership with the Federal Aviation Administration (FAA), is conducting a research and development program to modernize the National Airspace System (NAS) . The mission of NASA's Advanced Air Transportation Technologies (AATT) project is to develop advanced Air Traffic Management (ATM) concepts and decision support tools for eventual deployment and implementation by the FAA and the private sector. One major objective of the ... |
|
| Gulf of Mexico Helicopter Offshore System Technologies Recommended Development Path |
MAY 1999 |
28 pages |
| Authors:
Edmund J. Koenke; Larry Williams; Caesar Calafa; SYSTEM RESOURCES CORP EDGEWOOD MD
|
| The National Aeronautics and Space Administration (NASA) Advanced Air Transportation Technologies (AATT) project in cooperation with the Department of Transportation (DOT) Volpe National Transportation Systems Center (VNTSC) contracted with the System Resources Corporation (SRC) for the evaluation of the existing environment and the identification of user and service provider needs in the Gulf of Mexico low-altitude Offshore Sector. The results of this contractor activity are reported in the Gulf of ... |
|
| GPS User-Interface Design Problems |
APR 1999 |
11 pages |
| Authors:
Kevin W. Williams; FEDERAL AVIATION ADMINISTRATION OKLAHOMA CITY OK CIVIL AEROMEDICAL INST
|
| This paper is a review of human factors problems associated with the user-interface design of a set of Global Positioning System (GPS) receivers, certified for use in aircraft for instrument non-precision approaches. The paper focuses on design problems associated with the interfaces and specific inconsistencies across the set of interfaces that could cause confusion or errors during operation. Some specific problems addressed involve the layout and design of knobs and ... |
|
| Flying Complex Approaches Using a Head-Up Display: Effects of Visibilityand Display Type |
APR 1999 |
9 pages |
| Authors:
Michael P. Snow; John M. Reising; Kristen K. Liggett; Timothy P. Barry; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH HUMAN EFFECTIVENESS DIRECTORATE
|
| Air traffic controllers will soon have the ability to direct pilots to fly complex landing approaches. The imminent replacement of the Instrument landing System (ILS) with a landing system based on Global Positioning System (GPS) technology at major airports in the United States will allow pilots to fly landing approaches with curved segment and varying descent rates. From a military standpoint, flying complex approaches will allow ... |
|
| Flight Control Law Design and HIL Simulation of a UAV |
APR 1999 |
7 pages |
| Authors:
A. Ulku; TUSAS AEROSPACE INDUSTRIES INC ANKARA (TURKEY)
|
| An adaptive control methodology, merging two known approaches to flight control problem, gain-scheduling and direct eigenspace assignment (DEA), is developed. A gain-scheduled inner (stability) loop structure is shown to minimize the variance of the outer (guidance) loop gains and increase the robustness of the system. The employment of DEA with gain scheduling is observed to decouple the longitudinal and lateral flight modes resulting adequate system stability, enhanced robustness and control ... |
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| Air Traffic Control: Observations on FAA's Air Traffic Control Modernization Program |
25 MAR 1999 |
14 pages |
| Authors:
GENERAL ACCOUNTING OFFICE WASHINGTON DC RESOURCES COMMUNITY AND ECONOMIC DEVELOPMENT DIV
|
| In 1981, FAA began a multibillion-dollar modernization effort to improve the safety, capacity, and efficiency of this system to meet the increasing demand for air traffic services and to replace aging equipment. The agency's most recent estimate is that it will spend approximately $41 billion on the modernization effort through 2004. FAA has had some success in deploying new modernization systems over the past two decades. However, the agency has ... |
|
| GPS Signal Offset Detection and Noise Strength Estimation in a Parallel Kalman Filter Algorithm |
08 MAR 1999 |
99 pages |
| Authors:
Barry J. Vanek; AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH SCHOOL OF ENGINEERING
|
| Measurements from Global Positioning System (GPS) satellites are subject to corruption by signal interference and induced offsets. This thesis presents two independent algorithms to ensure the navigation system remains uncorrupted by these possible GPS failures. The first is a parameter estimation algorithm that estimates the measurement noise variance of each satellite. A redundant measurement differencing (RMD) technique provides direct observability of the differenced white measurement noise samples. The variance of ... |
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| Optimizing Blink Parameters for Highlighting an Air Traffic Control Situation Display |
MAR 1999 |
26 pages |
| Authors:
Nelda J. Milburn; Henry W. Mertens; FEDERAL AVIATION ADMINISTRATION OKLAHOMA CITY OK CIVIL AEROMEDICAL INST
|
| Research suggests blinking targets are more alerting than steady targets; however, several factors can interact with blinking to either improve or degrade its attention-getting value. Those factors include target size, color, brightness contrast, frequency of blink, and the time the blink is at maximum brightness relative to the time it is off or dim during the blink cycle. No guidelines were found for determining the optimal attention-getting blink amplitude (the ... |
|
| A Usability Survey of GPS Avionics Equipment: Some Preliminary Findings |
MAR 1999 |
10 pages |
| Authors:
Kurt M. Joseph; Dieter W. Jahns; Michael D. Nendick; Ross St. George; FEDERAL AVIATION ADMINISTRATION OKLAHOMA CITY OK CIVIL AEROMEDICAL INST
|
| The rapid introduction of Global Positioning System (GPS) receivers for airborne navigation has outpaced the capacity of international aviation authorities to resolve human factors issues that concern safe and efficient use of such devices. Current certification technical standards appear to have had little influence on standardizing receiver architectures, interfaces, and operating manuals-despite evidence from research simulation and flight tests that lack of standardization may undermine safety. The present research used ... |
|
| A Map Enhancement for Terrain Visualization Under Night Vision Goggle Compatible Lighting Systems |
MAR 1999 |
43 pages |
| Authors:
Wiley C. Thompson; OREGON STATE UNIV CORVALLIS
|
| For the Army aviator, Night Vision Goggle (NVG) flight in the tactical rotary-wing profile is a very demanding, task saturated environment. Map navigation is just one of the many tasks that must be accomplished during flight. The dim, monochromatic lighting required for NVG flight alters map colors, decreases image detail and map feature contrast, often making terrain feature recognition more difficult. A cartographic analysis and resulting map enhancement is needed ... |
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| Frames of Reference for Electronic Map Displays: Their Effect on Local Guidance and Global Situation Awareness During Low Altitude Rotorcraft Operations |
07 JAN 1999 |
92 pages |
| Authors:
Patrick E. Poole; ILLINOIS UNIV AT URBANA
|
| This study sought to examine frame of reference for electronic map displays and determine its effect on pilot local guidance ability and global situation awareness (GSA) during low altitude rotorcraft flights. It was hypothesized that the egocentric viewpoint would support superior local guidance ability, the exocentric viewpoint would facilitate better GSA, and the Situation Awareness Rating Technique (SART) would not be a good measure of GSA. Eighteen pilots flew simulated ... |
|
| On-Line Estimation of Allan Variance Parameters |
JAN 1999 |
|
| Authors:
J. J. Ford; M. E. Evans; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION CANBERRA (AUSTRALIA)
|
| A new on-line method is presented for estimation of the angular random walk and rate random walk coefficients of IMU (Inertial Measurement Unit) gyros and accelerometers. The on-line method proposes a state space model and proposes parameter estimators for quantities previously measured from off-line data techniques such as the Allan variance graph. Allan variance graphs have large off-line computational effort and data storage requirements. The technique ... |
|
| Summary of Research 1997, Department of Aeronautics and Astronautics |
JAN 1999 |
60 pages |
| Authors:
Gerald H. Lindsey; Oscar Biblarz; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF AERONAUTICS AND ASTRONAUTICS
|
| This report contains summaries of research projects in the Department of Aeronautics and Astronautics. A list of recent publications is also included which consists of conference presentations and publications, books, contributions to books, published journal papers, technical reports, and thesis abstracts. |
|
| Situation Awareness As a Predictor of Performance in En Route Air Traffic Controllers |
JAN 1999 |
15 pages |
| Authors:
Francis T. Durso; Carla A. Hackworth; Todd R. Truitt; Jerry Crutchfield; Danko Nikolic; OKLAHOMA UNIV NORMAN DEPT OF PSYCHOLOGY
|
| In this study, air traffic control instructors controlled simulated traffic while three techniques for determining situation awareness (SA) were implemented. SA was assessed using a self-report measure (SART); a query method that removed information on the plan-view display (SAGAT); a query technique that did not have a memory component (SPAM); and the detection of errors integrated into the scenarios (implicit performance). We used these measures ... |
|
| An Evaluation of Precise Absolute Navigation (PAN) Performance Under Dynamic Conditions |
JAN 1999 |
39 pages |
| Authors:
Bruce R. Hermann; NAVAL SURFACE WARFARE CENTER DAHLGREN DIV VA
|
| This report describes a method where the Global Positioning System (GPS) Precise Positioning Service (PPS) solutions recorded in the field can be reprocessed at a later time with the precise ephemerides, without requiring that the observations be saved. The reprocessing with the precise ephemerides improves the quality of the navigation solutions compared with the solutions obtained when the real-time broadcast ephemerides are used. This report continues the investigation of the ... |
|
| Multiservice Procedures for Joint Air Traffic Control (JATC) |
JAN 1999 |
138 pages |
| Authors:
ARMY TRAINING AND DOCTRINE COMMAND FORTMONROE VA
|
| This publication: (1) Provides basic background information on JATC operations. (2) Describes each Service's ATC doctrine, forces, capabilities, training, and equipment used to perform JATC operations. (3) Outlines the duties, responsibilities, and command and control relationships that influence JATC operations and handover procedures. (4) Illustrates how Service ATC forces are deployed and employed to perform ATC operations. (5) Describes how Service ATC forces conduct ATC during initial, transition, and sustained ... |
|
| Design of a Ground-Launched Ballistic Missile Interceptor Using a Genetic Algorithm |
1999 |
11 pages |
| Authors:
Murray B. Anderson; John E. Burkhalter; Rhonald M. Jenkins; SVERDRUP TECHNOLOGY INC HUNTSVILLE AL
|
| For this preliminary design study an apportioned pareto genetic algorithm, unique to the software package IMPROVE(Copyright), was used to manipulate a solid rocket design code, an aerodynamic design code, and a three- loop autopilot to produce interceptor designs capable of accurately engaging a high-speed/high-altitude target. Twenty-nine design variables were required to define the optimization problem, and four primary goals were established to access the ... |
|
| Causes and Remedies of Controlled Flight into Terrain in Military and Civil Aviation |
1999 |
7 pages |
| Authors:
Michael L. Moroze; Michael P. Snow; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH HUMAN EFFECTIVENESS DIRECTORATE
|
| Controlled flight into terrain (CFIT) accidents continue to be a primary cause of fatalities and airframe losses in aviation. Alerting and automation technologies such as Ground Proximity Warning Systems (GPWS), Enhanced Ground Proximity Warning Systems (EGPWS), and Ground Collision Avoidance Systems (GCAS) are offered as partial solutions to this problem. This article reviews current accident data for CFIT accidents in both US Air Force and commercial aviation over the last ... |
|
| Air Traffic Control Status of FAA's Modernization Program |
DEC 1998 |
99 pages |
| Authors:
GENERAL ACCOUNTING OFFICE WASHINGTON DC RESOURCES COMMUNITY AND ECONOMIC DEVELOPMENT DIV
|
| In late 1981, the Federal Aviation Administration (FAA) began a modernization program to replace and upgrade the National Airspace System's (NAS) equipment and facilities to meet the expected increase in traffic volume, enhance the margin of air safety, and increase the efficiency of the air traffic control system-the principal component of the NAS. historically, the modernization program has experienced many problems in meeting cost, schedule, and performance goals. As a ... |
|
| Unattended Ground Sensors and Precision Engagement |
DEC 1998 |
215 pages |
| Authors:
Eric D. Haider; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Unattended ground sensors (UGS) are devices that automatically gather sensor data on a remote target, interpret the data and communicate information back to a receiver without interaction with a human operator. The objective of this thesis is to determine how unattended ground sensor technologies might support precision engagement. Comparative case analysis of the use of sensors in Vietnam, the Sinai and Iraq is used to develop principles that UGS must ... |
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Air Navigation and Guidance
