| Socially Coherent Negotiation for Cooperative Multiagent Systems |
16-Jul-2008 |
53 pages |
| Authors:
Wynn C Stirling; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
 | This project presents a new mathematical formalization for the design of cooperative multiagent systems. Conventional decision-making concepts focus largely on the foundational premise of individual rationality: the doctrine that the preferences of each participant are concerned with its own welfare regardless of the effect on others. This solution concept may is not adequate for decision scenarios where notions of cooperation, compromise, and negotiation are critical to the success of the ... |
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| Time-Dependent Cooperative Assignment |
JUN 2005 |
7 pages |
| Authors:
Derek B. Kingston; Corey J. Schumacher; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| The problem of assigning multiple agents to time- dependent cooperative tasks is addressed using a Mixed- Integer Linear Program. A time-dependent cooperative task is a task requiring multiple agents to perform separate subtasks simultaneously or within some predetermined margin where agent availability to perform a subtask is limited to specific intervals in time. By separating the underlying calculation of agent availability and cost from the mechanism of assignment, a method ... |
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| Full L-S Band Telemetry System |
10 JUN 2003 |
10 pages |
| Authors:
Michael A. Jensen; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| This report details a transmission scheme that overcomes the detrimental interference created when two antennas are used on an aeronautical telemetry transmitter, a common practice for overcoming signal obstruction that can occur during air vehicle maneuvering. The development leads to symbol error probability expressions that can be applied to assess the performance of the scheme relative to that of traditional schemes. Representative computational examples demonstrate the potential of the method. ... |
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| Full L-S Band Telemetry System |
29 APR 2003 |
|
| Authors:
Michael A. Jensen; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
 | Recent changes in spectrum availability as well as higher demands for spectrum have motivated the development of telemetry transmit systems capable of fully operating over both L and S telemetry bands. However, enabling operation within these two bands poses new problems in system design. This report presents a prototype system capable of operating between 1.4 and 2.4 GHz, which supports continuous phase modulation (CPM) waveforms such as pulse code modulation ... |
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| Reconfigurable Computing Application Frameworks |
2003 |
11 pages |
| Authors:
Anthony L. Slade; Brent E. Nelson; Brad L. Hutchings; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| FPGA-based Configurable Computing Machines (CCMs) offer powerful and flexible general-purpose computing platforms. However, development for FPGA-based designs using modern CAD tools is geared mainly toward an ASIC-like process. This is inadequate for the needs of CCM application development. This paper discusses an application framework for developing CCM-based applications beyond just the hardware configuration. This framework leverages the advantages of CCMs (availability, programmability, visibility, and controllability) to help create CCM-based applications ... |
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| Full L-S Band Telemetry System |
DEC 2002 |
18 pages |
| Authors:
Michael A. Jensen; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| Recent changes in spectrum availability as well as higher demands for spectrum have motivated the development of telemetry transmit systems capable of fully operating over both L and S telemetry bands. However, enabling operation within these two bands poses new problems in system design. This report presents a prototype system capable of operating between 1.4 and 2.4 GHz which supports continuous phase modulation (CPM) waveforms such as pulse code modulation ... |
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| Full L-S Band Telemetry System |
DEC 2001 |
9 pages |
| Authors:
Michael A. Jensen; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| Recent changes in spectrum availability as well as higher demands for spectrum have motivated the development of telemetry transmit systems capable of fully operating over both L and S telemetry bands. However enabling operation within these two bands poses new problems in system design. This report presents a prototype system capable of operating between 1.4 and 2.4 GHz, which supports continuous phase modulation (CPM) waveforms such as pulse code modulation ... |
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| Parametric Filters For Non-Stationary Interference Mitigation in Airborne Radars |
14 MAR 2001 |
27 pages |
| Authors:
Peter Parker; A. L. Swindlehurst; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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| Workshop presentation on parametric filters for non-stationary interference mitigation in airborne radars. |
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| Parametric Filters for Non-Stationary Interference Mitigation in Airborne Radars |
14 MAR 2001 |
7 pages |
| Authors:
Peter Parker; A. L. Swindlehurst; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| Multichannel parametric filters are currently being studied as a means of reducing the dimension of Space-Time Adaptive Processing (STAP) algorithms for interference rejection in airborne pulsed-Doppler radar systems. These filters are attractive to use due to the low computational cost associated with their implementation as well as their near-optimal performance with a small amount of training data for a stationary environment. However, such filters do not perform well in certain ... |
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| Parametric Filters for Non-Stationary Interference Mitigation in Airborne Radars |
2000 |
6 pages |
| Authors:
Peter Parker; A. L. Swindlehurst; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| Multichannel parametric filters are currently being studied as a means of reducing the dimension of STAP algorithms for interference rejection in airborne pulsed-Doppler radar systems. These filters are attractive to use due to the low computational cost associated with their implementation as well as their near optimal performance with a small amount of training data for a stationary environment. However; these filters do not perform well in certain types of ... |
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| Improving the FPGA Design Process Through Determining and Applying Logical-to-Physical Design Mappings |
2000 |
12 pages |
| Authors:
Paul Graham; Brad Hutchings; Brent Nelson; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| This paper discusses several possible uses of the knowledge of how user's logical designs are mapped to physical FPGA circuits. Some of these uses include power analysis, useful feedback on physical design implementations, and direct, quick modifications of physical designs. As an example of how this knowledge can be used, we describe, in detail, how to determine the logical-to-physical mapping of Xilinx XC4000 circuits created with JHDL and how this ... |
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| A Comprehensive Investigation of Advanced Range Telemetry |
30 NOV 1999 |
39 pages |
| Authors:
Michael Rice; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| Data from ARTM channel sounding flights has been analyzed. A three- path model consisting of a line-of-sight path and two reflected paths adequately captures all the essential multipath features of the aeronautical telemetry channel. The amplitudes and delays of the multipath reflections are the same for L-Band and S-Band. Antenna diameter does have an effect: larger antenna diameters result in lower amplitudes on the short-delay multipath reflection. Flight 18 data ... |
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| A CAD Suite for High-Performance FPGA Design |
1999 |
14 pages |
| Authors:
Brad Hutchings; Peter Bellows; Joseph Hawkins; Scott Hemmert; Brent Nelson; Mike Rytting; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| This paper describes the current status of a suite of CAD tools designed specifically for use by designers who are developing high-performance configurable-computing applications. The basis of this tool suite is JHDL [1] a design tool originally conceived as a way to experiment with Run-Time Reconfigured (RTR) designs. However what began as a limited experiment to model RTR designs with Java has evolved into a comprehensive suite of design tools ... |
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| JHDL - An HDL for Reconfigurable Systems |
1998 |
11 pages |
| Authors:
Peter Bellows; Brad Hutchings; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| JHDL is a design tool for reconfigurable systems that allows designers to express circuit organizations that dynamically change over time in a natural way, using only standard programming abstractions found in object oriented languages. JHDL manages FPGA resources in a manner that is similar to the way object-oriented languages manage memory: circuits are treated as distinct objects and a circuit is configured onto a configurable computing machine (CCM) by invoking ... |
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| FPGA-Based Sonar Processing |
1998 |
9 pages |
| Authors:
Paul Graham; Brent Nelson; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| This paper presents the application of time-delay sonar beamforming and discusses a multi-board FPGA system for performing several variations of this beamforming method in real-time for realistic sonar arrays. Additionally, we show that our proposed FPGA system has a six to twelve times performance advantage over an equivalent system created using currently available, high-performance DSPs designed for multiprocessing systems. This performance advantage is due to the simplicity of the core ... |
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| An FPGA Implementation of ATR Using Embedded Ram for Control |
30 JUN 1997 |
130 pages |
| Authors:
Richard D. Ross; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| Automatic Target Recognition (ATR) is a computationally intensive problem with potential for good performance when mapped to Field Programmable Gate Arrays (FPGAs). This thesis presents work that was done to implement the Sandia National Laboratory Chunky SLD stage of ATR on an Altera FLEX 10K50. The FLEX 10K series has large (256 x 8), dedicated, embedded memories that present an opportunity for unique and innovative implementations of computing algorithms. These ... |
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| Azimuth Elevation Direction Finding Using Regular Array Geometries. |
JAN 1993 |
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| Authors:
A. Swindlehurst; T. Kailath; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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| We consider the problem of extending the estimation of signal parameters via rotational invariance techniques (ESPRIT) algorithm for multiple source, cochannel direction finding to the two-dimensional case (e.g., azimuth and elevation angle estimation). Two algorithms are presented, one based on the optimal (minimum variance) subspace fitting formulation of ESPRIT, and the other based on an approximation to it. The algorithms are applicable to antenna arrays composed of identical subarrays displaced ... |
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| Decision-Directed Detection and Spectral Probability Estimation |
03 AUG 87 |
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| Authors:
Wynn C. Stirling; Robert A. Muir; BRIGHAM YOUNG UNIV PROVO UT DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| Over the past several years many contributions have been made to the problem of detecting underwater acoustic signals and estimating signal parameters such as time of arrival, frequency of arrival, etc. In the previous research effort, the spatial detection problem was re-examined from a decision- directed point of view, and a methodology was presented to estimate the time- varying joint prior spatial distribution of the signal. In the current research ... |
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Reports by Corporate Author
