Transistor level circuit experiments using evolvable hardware. (2009)
Stoica, A., Zebulum, R. S., Keymeulen, D., Ferguson, M. I., Daud, Taher, Thakoor, A.
The Jet Propulsion Laboratory (JPL) performs research in fault tolerant, long life, and space survivable electronics for the National Aeronautics and Space Administration (NASA). With that focus, JPL...
EVOLVABLE, RECONFIGURABLE HARDWARE FOR FUTURE SPACE SYSTEMS (2008)
A. Stoica, R. S. Zebulum, D. Keymeulen, M. I. Ferguson, A. Thakoor, Xin Guo Chromatech
Hardware (EHW) technology, examining its potential for enhancing survivability and flexibility of future space systems. EHW refers to selfconfiguration of electronic hardware by evolutionary/genetic...
Learning Robot Dynamics for Computed Torque Control Using Local Gaussian Processes Regression (2008)
Nguyen-Tuong, D., Peters, J., Stoica, A., Tunstel, E., Huntsberger, T., Arslan, T., ...
Accurate models of the robot dynamics allow the design of significantly more precise, energy-efficient and more compliant computed torque control for robots. However, in some cases the accuracy of...
2 STATE FEEDBACK MIXED H / H PROBLEM FOR LINEAR SYSTEMS WITH FINITE JUMPS (2007)
2 The paper considers the mixed H / H problem for linear systems with jumps. There are two main results proved in the paper. The first one provides an evaluation of the norm induced by the inputs of...
Stoica, A., Zebulum, R. S., Guo, X., Keymeulen, D., Ferguson, M. I., Duong, V.
Current techniques in evolutionary synthesis of analogue and digital circuits designed at transistor level have focused on achieving the desired functional response, without paying sufficient...
723 Deep venous thrombosis in children-etiological and diagnosis particularities (2006)
Ghiorghiu, I.A., Iancu, M., Stoica, A., Arsenescu, I., Dumitru, M., Serban, M., ...
Evolvable Hardware for Spacecraft Autonomy (2004)
Fukunaga, A., Hayworth, K., Stoica, A.
Evolvable hardware is a recently proposed technology in which reconfigurable hardware under the control of and evolutionary (genetic) algorithm can automatically self-reconfigure into sonfigurations...
Neural Learning Using Orthogonal Arrays (2004)
Stoica, A., Blosiu, J., Figie, B.
The paper proposes the use of the orthogonal arrays for neural network learning. Learning can be seen as a search for the neural weights that give an optimal network performance.
Klimeck, G., Bowen, C., Boykin, T., Oyafuso, F., Salazar-Lazaro, C., Stoica, A., ...
The development of NEMO has benefited from the vast research on resonant tunneling diodes that had been done before the project.
Klimeck, G., Bowen, C., Boykin, T., Oyafuso, F., Salazar-Lazaro, C., Stoica, A., ...
Material variations on an atomic scale enable the quantum mechanical functionality of devices such as resonant tunneling diodes (RTDs), quantum well infrared photodetectors (QWIPs), quantum well...
Nanoelectronic Modeling at JPL (2004)
Klimeck, G., Bowen, C., Boykin, T., Oyafuso, F., Salazar-Lazaro, C., Stoica, A., ...
The NASA/JPL goal to reduce payload in future space missions while increasing mission capability demands miniaturization of measurement, analytical and communication systems.
Genetically Engineered Nanostructure Devices (2004)
Klimeck, G., Salazar-Lazaro, C., Stoica, A., Cwik, T.
Material variations on an atomic scale enable the quantum mechanical functionality of devices such as resonant tunneling diodes (RTDs), quantum well infrared photodetectors (QWIPs), quantum well...
Stoica, A., Keymeulen, D., Lazaro, C., Li, W., Hayworth, K., Tawel, R.
Autonomous space systems will need to adapt to new environments and perform new functions, in addition to those specified at launch.
Extended Logic Intelligent Processing System for a Sensor Fusion Processor Hardware (2004)
Daud, T., Stoica, A., Thomas, T., Li, W., Fabunmi, J.
The paper presents the hardware implementation and initial tests from a low-power, high-speed reconfigurable sensor fusion processor.
Evolution of CMOS Circuits in Simulations and Directly in Hardware on a Programmable Chip (2004)
Stoica, A., Lazaro, C., Keymeulen, D., Hayworth, K.
The paper introduces an approach to automated synthesis of CMOS circuits, based on evolution on a Programmable Transistor Array (PTA).
Stoica, A., Keymeulen, D., Tawel, R., Salazar-Lazaro, C., Li, W.
The paper describes the architectual details of a fine-grained Programmable Transistor Array (PTA) architecture and illustrates its use in evolutionary experiments on the synthesis of both analog and...
Reconfigurable Sensor Fusion Processing Hardware (2004)
Daud, T., Stoica, A., Thomas, T., Li, W. T., Weldon, D., Duong, T.
The paper presents the concept and initial test from the hardware implementation of a low-power, high-speed reconfigurable sensor fusion processor.
Si Tight-Binding Parameters from Genetic Algorithm Fitting (2004)
Klimeck, G., Bowen, R., Boykin, T., Salazar-Lazaro, C., Cwik, T., Stoica, A.
Quantum mechanical simulations of carrier transport in Si require an accurate model of the complicated Si bandstructure. Tight-binding models are an attractive method of choice since they bear the...
An Evolvable Multi-Agent Approach to Satellite Telecommunication Systems (2004)
This paper presents a model of a satellite communication system using evolving multi-agent architecture.
Evolvable Hardware for Space Applications (2004)
Stoica, A., Fukunaga, A., Hayworth, K., Salazar-Lazaro, C.
This paper focuses on characteristics and applications of evolvable hardware (EHW) to space systems, and describes research directions and ongoing work at JPL.
Initial experiments of reconfigurable sensor adapted by evolution (2004)
Keymeulen, D., Zebulum, R., Stoica, A., Buehler, M.
In this paper we describe the initial development of efficient mechanisms for smart sensing which will lead to higher quality data.
On polymorphic circuits and their design using evolutionary algorithms (2004)
Stoica, A., Zebulum, R., Keymeulen, D., Lohn, J.
This paper introduces the concept of polymorphic electronics (polytronics) - referring to electronics with superimposed built-in functionality.
Automatic Synthesis and Fault-tolerant Experiments on an Evolvable Hardware Platform (2004)
Stoica, A., Keymeulen, D., Duong, V., Salazar-Lazaro, C.
Outer solar system exploration and missions to comets and planets with severe environmental conditions require long-term survivability of space systems. This challenge has recently been approached...
Zebulum, R., Stoica, A., Keymeulen, D.
This article focuses on the properties of a fine grained reconfigurable transistor array currently under test at the Jet Propulsion Laboratory (JPL).
Stoica, A., Zebulum, R., Keymeulen, D.
This paper introduces a third approach to Evolvable Hardware (EHW) called mixtrinsic EHW (MEHW).
EHWPack: a Parallel Software/Hardware Environment for Evolvable Hardware (2004)
Keymeulen, D., Klimeck, G., Zebulum, R., Stoica, A., Salazar-Lazaro, C.
Keymeulen, D., Stoica, A., Zebulum, R., Duong, V.
The paper presents and compares two approaches to design fault-tolerant evolvable hardware: one based on the fitness definition and the other based on the population statistics.
The Design Process of an Evolutionary Oriented Reconfigurable Architecture (2004)
Zebulum, R., Stoica, A., Keymeulen, D.
This paper describes the design of a reconfigurable chip programmable at the transistor level and oriented to the implementation of Evolvable Hardware (EHW) experiements.
Evolution of Analog Circuits on Field Programmable Transistor Arrays (2004)
Stoica, A., Keymeulen, D., Zebulum, R., Thakoor, A., Daud, T., Klimeck, G., ...
Evolvable Hardware (EHW) refers to HW design and self-reconfiguration using evolutionary/genetic mechanisms. The paper presents an overview of some key concepts of EHW, describing also a set of...
Keymeulen, D., Klimeck, G., Zebulum, R., Stoica, A., Jin, Y., Lazaro, C.
This paper describes the EHW development system, a tool that performs the evolutionary synthesis of electronic circuits, using the SPICE simulator and the Field Programmable Transistor Array hardware...
Evolutionary design of smart analog circuits (2004)
Stoica, A., Zebulum, R., Keymeulen, D.
This paper discusses the use of Evolvable Hardware (EHW) in automatic synthesis of electronic circuits for computational intelligence (CI) hardware.
Speed challenge: a case for hardware implementation in soft-computing (2004)
Daud, T., Stoica, A., Duong, T., Keymeulen, D., Zebulum, R., Thomas, T., ...
For over a decade, JPL has been actively involved in soft computing research on theory, architecture, applications, and electronics hardware. The driving force in all our research activities, in...
Evolving electronic circuits for computational intelligence hardware (2004)
Stoica, A., Zebulum, R., Keymeulen, D., Jin, Y., Daud, T.
This paper discusses the use of Evolvable Hardware (EHW) in automatic synthesis of electronic circuits for computational intelligence (CI) hardware.
Evolutionary mechanisms for smart on-board adaptive sensing applied to the MECA electrometer (2004)
Keymeulen, D., Stoica, A., Buehler, M., Zebulum, R., Duong, V.
In this paper we describe the initial development of efficient mechanisms for smart on-board adaptive sensing, adaptively controlling the reconfigurable pre-processing analog electronics using...
ELIPS: Toward a Sensor Fusion Processor on a Chip (2004)
Daud, T., Stoica, A., Tyson, T., Li, W., Fabunmi, J.
The paper presents the concept and initial tests from the hardware implementation of a low-power, high-speed reconfigurable sensor fusion processor. The Extended Logic Intelligent Processing System...
Toward Evolvable Hardware Chips: Experiments with a Programmable Transistor Array (2004)
Evolvable Hardware is reconfigurable hardware that self-configures under the control of an evolutionary algorithm.
An Evolvable Multi-Agent Approach to Space Operations Engineering (2004)
A complex system of spacecraft and ground tracking stations, as well as a constellation of satellites or spacecraft, has to be able to reliably withstand sudden environment changes, resource...
"Genetically Engineered" Nanoelectronics (2004)
Klimeck, G., Salazar-Lazaro, C.H., Stoica, A., Cwik, T.
The Nanoelectronic Modeling Tool (NEMO) is a general-purpose quantum device design and analysis tool based on a fundamental non-equilibrium electron transport theory.
Current mode circuits: increasing the chances of evolution to find a way (2004)
Zebulum, R. S., Stoica, A., Keymeulen, D., Ferguson, M. I., Duong, V., Daud, T.
We describe in this paper experiments on the evolution of current mode circuits.
An evolvable hardware platform based on DSP and FPTA (2004)
Ferguson, M. I., Stoica, A., Keymeulen, D., Zebulum, R., Duong, V.
We describe in this paper the rationale and design of an evovlable hardware platform based on the use of a stand-alone processor and a Field Programable Transistor Array.
Fuzzy controller implementations with fewer than ten transistors? (2004)
Stoica, A., Zebulum, R. S., Keymeulen, D., Ferguson, M. I., Duong, V.
Evolutionary algorithms offer good promise for automated design of analog circuits as well as for adaptation and automatic reconfiguration of programmable devices.
Experiments on the evolution of digital to analog converters (2004)
Zebulum, R. S., Stoica, A., Keymeulen, D.
Currently, there is a research effort in Evolvable Hardware being driven towards two purposes: the synthesis of circuits of medium to high complexity; and the design of reconfigurable architectures...
Polymorphic electronics (2004)
Zebulum, R., Stoica, A., Keymeulen, D.
This paper introduces the concept of polymorphic electronics (polytronics)- referring to electronics with superimposed built-in functionality.
Evolvable hardware solutions for extreme temperature electronics (2004)
Zebulum, R., Stoica, A., Keymeulen, D.
This paper presents a novel approach, based on evolvable hardware technology, which allows adaptive in-situ circuit redesign/reconfiguration during operation in extreme environments.
Progress and challenges in building evolvable devices (2004)
Zebulum, R., Keymeulen, D., Stoica, A.
This paper presents JPL progress in building evolution-oriented reconfigurable devices.
Evolving circuits in seconds: experiments with a stand-alone board-level evolvable system (2004)
Stoica, A., Zebulum, R. S., Ferguson, M. I., Keymeulen, D., Duong, V., Guo, X.
The purpose of this paper is twofold: first, to illustrate a stand-alone board-level evolvable system (SABLES) and its performance, and second to illustrate some problems that occur during evolution...
Stoica, A., Keymeulen, D., Zebulum, R. S., Ferguson, M. I., Guo, X.
This paper comments on some directions of growth for evolvable hardware, proposes research directions that address the scalability problem and gives examples of results in novel areas approached by...
Rapid evolution of analog circuits configured on a field programmable transistor array (2004)
Stoica, A., Ferguson, M. I., Zebulum, R. S., Keymeulen, D., Duong, V., Daud, T.
The purpose of this paper is to illustrate evolution of analog circuits on a stand-alone board-level evolvable system (SABLES). SABLES is part of an effort to achieve integrated evolvable systems....
Evolvable, reconfigurable hardware for future space systems (2004)
Stoica, A., Zebulum, R. S., Keymeulen, D., Ferguson, M. I., Thakoor, A.
This paper overviews Evolvable Hardware (EHW) technology, examining its potential for enhancing survivability and flexibility of future space systems. EHW refers to selfconfiguration of electronic...
On-chip evolutionary synthesis of reconfigurable analog computing circuits (2004)
Stoica, A., Guo, X., Zebulum, R. S., Keymeulen, D., Ferguson, M. I.
The paper presents a Field Programmable Transistor Array (FPTA), developed as an experimental platform for implementing flexible, reconfigurable analog computing.
Stoica, A., Keymeulen, D., Zebulum, R. S., Ferguson, M. I.
This paper describes scalability issues of evolutionary-driven automatic synthesis of electronic circuits. The article begins by reviewing the concepts of circuit evolution and discussing the...
Development of consistent equivalent models by mixed-model search (2004)
Guo, X., Stoica, A., Zebulum, R., Keymeulen, D.
This paper introduces a new approach to the development of equivalent models. Models of various accuracy and simulation speed may be needed in different contexts of design and analysis, or within...
Speed enhancement with soft computing hardware (2004)
Daud, T., Stoica, A., Zebulum, R., Duong, T., Thakoor, A.
We will review our work on electronic neural networks and evolvable hardware to bring out speed advantage.
STOICA, A., FERNANDEZ-MALOIGNE, C.
In the last years, the consideration of different models of the Human Visual System (HVS) in the final perceived quality of the compressed images becomes a major research subject. Therefore, it is...
STOICA, A., FERNANDEZ-MALOIGNE, C.
In the last years, the consideration of different models of the Human Visual System (HVS) in the final perceived quality of the compressed images becomes a major research subject. Therefore, it is...
Initial experiments of reconfigurable sensor adapted by evolution (2001)
D. Keymeulen, R. Zebulum, A. Stoica, M. Buehler
Abstract. Missions to planets with unknown environmental condition, have recently been approached with new ideas, such as use of biology-inspired mechanisms for hardware sensor adaptation. In this...
Evolution of analog circuits on field programmable transistor arrays (2000)
A. Stoica, D. Keymeulen, R. Zebulum, A. Thakoor, T. Daud, G. Klimeck, ...
Evolvable Hardware (EHW) refers to HW design and self-reconfiguration using evolutionary/genetic mechanisms. The paper presents an overview of some key concepts of EHW, describing also a set of...