检索结果-内蒙古大学图书馆

IEEE Asia-Pacific Conference on Circuits and systems

作者： K. Soemintapura A.Z.R. Langi Laboratory for Signals and Systems Department of Electrical Engineering Institute of Technology Bandung Laboratory of Microelectronics Design IURC Microelectronics Institute of Technology Bandung Bandung West Java Indonesia

This research develops a new approach in processing multimedia signals (i.e., speech, audio, and images) using wavelets and multifractals. Processing multimedia signals is critical in many modern telecommunication and information systems. Nonstationary behaviours have been the most important characteristics of multimedia signals because they carry signal information. Unfortunately nonstationary parts are difficult to process effectively using traditional tools such as Fourier transforms. In contrast, wavelets and multifractality not only reveal that nonstationary parts are sufficient to represent natural images, but also can be used to reconstruct such signals. The general objectives of this research are to develop the wavelet and multifractal concepts into a new signal-processing framework, to obtain more effective and efficient signal representation. If the objectives can be achieved, the results of the proposed research can be a breakthrough in nonstationary signal processing, as fundamental as the well known Fourier approach in stationary signal processing.

关键词： Signal processing Feature extraction Fractals Signal analysis Laboratories microelectronics Signal synthesis Character recognition Data mining Signal design

来源：评论

学校读者我要写书评

暂无评论

Reinforcement neural learning with application to gas sensors

Reinforcement neural learning with application to gas sensor...

引用

Midwest Symposium on Circuits and systems (MWSCAS)

作者： H.S. Abdel-Aty-Zohdy Microelectronics System Design Laboratory Department of Electrical and Systems Engineering Oakland University Rochester MI USA

Neural net reinforcement learning algorithm and its application to gas (chemicals) classification and quantification are considered in this paper. The approach does not require memory and has simplified reward/punishment computations. The advantages and disadvantages of the reinforcement algorithm are contrasted against other competing neural algorithms. The reinforcement learning has been found practical, when each gas (chemical) is distinguished by several features and characteristics with possible overlap. The paper also gives an account of integrated circuit digital chip implementation for typical four gases with temperature, pressure, and flow quantity features. The number of required iterations has been found to depend on reward and penalty parameters, as well as the threshold governing the learning. It is believed that our implementation approach has potential uses in auto industry safety and emission control, as well in automated semiconductor manufacturing process.

关键词： Gas detectors Learning Chemicals Neural networks Digital integrated circuits Gases Temperature Industrial control Manufacturing industries Safety

来源：评论

学校读者我要写书评

暂无评论

A wide input range analog multiplier for neuro-computing

A wide input range analog multiplier for neuro-computing

引用

Midwest Symposium on Circuits and systems (MWSCAS)

作者： M. Al-Nsour H.S. Abdel-Aty-Zohdy Microelectronics Systems Design Laboratory Department of Electrical and Systems Engineering Oakland University Rochester MN USA Microelectronics Systems Design Laboratory Department of Electrical and Systems Engineering Oakland University Rochester MI USA

A wide input range 4-quadrant analog multiplier design and its VLSI implementation are presented. The design is based on the squaring law operation of saturated NMOS transistors. The circuit is realized by using 12 NMOS and 2 PMOS transistors. The multiplier accepts two signed inputs in the range of /spl plusmn/4 V. The simulated corner frequency is found to be at 85 MHz. N-well 2 /spl mu/m CMOS double metal process is utilized. It occupies 99/spl times/160 /spl mu/m/sup 2/. Statistical linear regression showed that the multiplier has less than 1% overall error. By extending the input range and minimizing the silicon area, this design has high potential in evolving neuro-computing applications.

关键词： MOSFETs Silicon Neural networks Neurons Intrusion detection Threshold voltage Circuit analysis design optimization microelectronics Laboratories

来源：评论

学校读者我要写书评

暂无评论

Multifractal processing of speech signals

Multifractal processing of speech signals

引用

International Conference on Information, Communications and Signal Processing

作者： A.Z.R. Langi K. Soemintapura W. Kinsner Laboratory of Microelectronics Design Institute of Technology Bandung InterUniversity Microelectronics Centre Bandung West Java Indonesia Laboratory for Signals and Systems Department of Electrical Engineering Institute of Technology Bandung West Java Indonesia Department of Electrical and Computer Engineering University of Manitoba Winnipeg MAN Canada

This paper describes a novel framework in processing speech signals using multifractality concepts, and shows that multifractality could be a new fundamental tool for speech processing. New approaches using the self-similarity model of complexity have been developed to simplify processing of complicated speech signals. The approaches associate signals with fractal sets and then characterize the sets using real numbers called fractal dimensions. This paper extends the approaches by associating speech signals with measures and then characterizing the measures with multifractal curves such as Mandelbrot dimensions (denoted as f(/spl alpha/)) or Renyi dimensions D/sub q/. Such curves (also known as singularity curves) are the characterization of speech signals. This paper shows that multifractal (or singularity) processing of speech is capable of providing important processing aspects: decomposition, representation, and spectrum characterization-a capability that makes Fourier processing of signals is fundamental. The multifractal approach can decompose speech into various segments based on variations of the segment's Holder exponents. The results can be used for new speech segmentation schemes. The multifractal approach is also used in characterizing speech through singularity spectrum. This can be used to develop better accuracy speech recognition schemes. Finally, the paper describes a process to reconstruct speech signals from their singularity representation, by the means of the so-called wavelet maxima.

关键词： Fractals Speech processing Signal processing Speech recognition Laboratories microelectronics Fourier transforms Time measurement Signal design Java

来源：评论

学校读者我要写书评

暂无评论

Operational systems, logistics engineering and technology insertion

引用

NAVAL ENGINEERS JOURNAL 1997年第3期109卷 205-220页

作者： Grubb, MJ Skolnick, A Michael J. Grubb:has perfomzed naval engineering at the Crane Division Naval Surface Warfare Center (NSWC) for more than twenty-five years. He currently the program manager for the Sustainable Hardware and Affordable Readiness Practice Program (SHARP). is a Navy-wide logistics research and development prgram aimed at the successful transiton of proved technologies inot the fleet. SHARP focuses on reducing acquisition performance capability reliability maintainability and readiness of these systems. Mr. Grubb has served as a department director for the past eleven years. His most recent assignment was as director of the Tactical Computer Resources and Test Equipment Department. This organization provided acquisition and in-service engineering support of the Navy's tectical embedded computers priphirals displays and mass memory storage devices. The organization also provided a complete range of product engineering and metrology engineerig services for SSP NevSeaSysCom and the Trident Program. Prior to this appointment Mr. Grubb was deptuy director psysical security programs department and site responsible for program management and system integration of ashore integrated security systems. Mr. Grubb holds a B.S. degree in industrial engineering from Iowa State Universtiy an M.S. degree in industrial engineering from Purdue University and has copleted the course work (Dec.'96 for a master's degree in public and environment affairs at Indiana University-Purdue Univeristy Indianapolis. Dr. Alfred Skolnick operates System Science Consultants (SSC) specilizing in strategic planning technical program definiton technology assessment and engineering analyses on selected matters of national interest. He has taught physics mathematics and management sciences at University of Virginia and Marymount University and is currently adjunct professor of mathematics at Northern Virginia Community College. Form 1985 to 1989 he was president of the American Society of Noval Engineers. Dr. Skolnick served at Applied Physic

In an era of fiscal austerity, downsizing and unforgiving pressure upon human and economic capital, it is an Augean task to identify resources for fresh and creative work. The realities of the day and the practical demands of more immediate fleet needs can often dictate higher priorities. Yet, the Navy must avoid eating its seed corn. Exercising both technical insight and management foresight, the fleet, the R&D community, the Office of the Chief of Naval Operations (OpNav) and the product engineering expertise of the Naval Surface Warfare Center (NSWC) are joined and underway with integrated efforts to marry new, fully demonstrated technologies and operational urgencies. Defense funding today cannot sponsor all work that can be mission-justified over the long term because budgets are insufficient to support product maturation within the classical development cycle. However, by rigorous technical filtering and astute engineering of both marketplace capabilities and currently available components, it is possible in a few select cases to compress and, in effect, integrate advanced development (6.3), engineering development (6.4), weapon procurement (WPN), ship construction (SCN), operation and maintenance (O&M,N) budgetary categories when fleet criticalities and technology opportunities can happily meet. In short, 6.3 funds can be applied directly to ''ripe gateways'' so modern technology is inserted into existing troubled or aging systems, sidestepping the lengthy, traditional development cycle and accelerating practical payoffs to recurrent fleet problems. To produce such constructive results has required a remarkable convergence of sponsor prescience and engineering workforce excellence. The paper describes, extensively, the philosophy of approach, transition strategy, polling of fleet needs, technology assessment, and management team requirements. The process for culling and selecting specific candidate tasks for SHARP sponsorship (matching operational need with t

关键词： Naval vessels

来源：评论

学校读者我要写书评

暂无评论

An improved ASIC design and implementation for color space conversion applications

An improved ASIC design and implementation for color space c...

引用

Midwest Symposium on Circuits and systems (MWSCAS)

作者： M. Nsour H.S. Abdel-Aty-Zohdy Microelectronics System Design Laboratory Department of Electrical and Systems Engineering Oakland University Rochester MI USA

The design and VLSI implementation of an ASIC chip, which performs real time conversion, the Red, Green, and Blue (RGB) color coordinates to CIE (Commission Internationale de l'Eclairage) standard L* (luminance), a* (redness-greenness), and b* (yellowness-blueness) color coordinates, is presented. High-speed operation of this ASIC is achieved by pipelining the input data, and performing parallel operations. The ASIC is implemented using CMOS, 2.0 /spl mu/m, n-well process. It occupies an area of 1.55/spl times/1.45 mm/sup 2/. The chip is intended to be used in colorimetry manufacturing inspection and robotics precision. Inputs are 3 bits each. a* and b* are 7 bits each, L* is 6 bits.

关键词： Application specific integrated circuits systems engineering and theory Inspection Application software Humans Extraterrestrial measurements Instruments Color microelectronics Laboratories

来源：评论

学校读者我要写书评

暂无评论

Uncertain nonlinear algebraic solutions and their implementation using neural networks

Uncertain nonlinear algebraic solutions and their implementa...

引用

Midwest Symposium on Circuits and systems (MWSCAS)

作者： H.S. Abdel-Aty-Zohdy M.A. Zohdy M. Karam Microelectronics System Design Lab Department of Electrical and Systems Engineering Oakland University Rochester MI USA Department of Electrical and Systems Engineering Oakland University Rochester MI USA

In this article, we propose a dynamic recurrent approach to solve uncertain nonlinear algebraic equations. The approach is justified on the basis of net construction that recursively produces minimum neuron state energy which corresponds to the desired solution. Linearization via the Newton-Raphson method is employed in order to make the net converge to an appropriate region in the solution space. Some preliminary experimentation on non-trivial nonlinear examples are included and discussed. Approaches for hardware implementation of the recurrent dynamic neural network are presented. Comparison between a totally digital chip design and a hybrid analog/digital implementation utilizing MOSIS facilities is made. Evaluation and simulations on system, logic, and circuit levels are emphasized.

关键词： Nonlinear equations Neurons Newton method Neural network hardware Nonlinear dynamical systems Neural networks Recurrent neural networks Chip scale packaging Circuit simulation Logic circuits

来源：评论

学校读者我要写书评

暂无评论

Combinational logic approach for designing RNS multipliers

Combinational logic approach for designing RNS multipliers

引用

Midwest Symposium on Circuits and systems (MWSCAS)

作者： A.A. Hiasat H. Abdel-Aty-Zohdy Electronics Engineering Department Royal Scientific Society Princess Sumaya University for Technology Amman Jordan Microelectronics System Desigh Laboratory Electrical and Systems Engineering Oakland University Rochester MI USA

The design of Residue Number system (RNS) multipliers has received considerable attention in the last few years. This paper presents a new approach for designing modular multipliers using a combinational logic technique. The idea is based on constructing a truth table whose inputs are the bits of the multiplicand and the multiplier. The outputs are the bits of the modular product. Realizing any minimized Boolean function is achieved using two levels of gates. Compared to most recent developed approach, our new technique requires less integrated circuit area and operates at a higher speed.

关键词： Minimization methods Zinc

来源：评论

学校读者我要写书评

暂无评论

Affordability, logistics R&D and fleet systems

引用

NAVAL ENGINEERS JOURNAL 1996年第3期108卷 199-213页

作者： Schulte, DP Skolnick, A He has supported the development and operation of several naval systems including advanced component selection for Trident II fire control and navigation systems. He served as branch manager of the Surface Ship ASW Combat System Branch which acted as the acquisition engineering agent for the AN/SQQ-89 Surface Ship Anti-Submarine Warfare Weapon System. He was then selected to manage the Module Engineering Department which provided engineering support to numerous naval systems including the AN/BSY-1 Submarine Combat System and the Trident II fire control and navigation system. He then served as the deputy program manager for NAVSEA Progressive Maintenance (2M/ATE). He holds a B.S. degree in Electrical Engineering from Purdue University and currently is pursuing a Maste's degree in Public Environmental Affairs at Indiana University—Purdue University Indianapolis. He served at Applied Physics Laboratory/The Johns Hopkins University in missile development then aboard USS Boston (CAG-1) and played leading roles in several weapon system developments (Regulus Terrier Tartar Talos) inertial navigation (Polaris) deep submergence (DSRV) and advanced ship designs (SES). He later was director Combat System Integration Naval Sea Systems Command and head Combat Projects Naval Ship Engineering Center. He led the Navy's High Energy Lasers and Directed Energy Weapons development efforts. He was vice president advanced technology at Operations Research Inc. and vice president maritime engineering at Defense Group Inc. before starting SSC in 1991. Dr. Skolnick holds a B.S. degree in Mathematics and Economics Queens College an M.A. degree in Mathematics and Philosophy Columbia University an M.S. degree in Electrical/Aeronautical Engineering U.S. Naval Postgraduate School and a Ph.D. in Electrical Engineering and Applied Mathematics from Polytechnic University in New York. He is the author of many published papers on engineering design issues source selection procedures and large-scale complex technology problems

The Fleet continues to require high performance systems that can operate with dependability in the seas' unforgiving environments and under hostile action. Those demands are not new. What has changed is the urgent priority formerly assigned to national defense issues. The arguments for continued superpower military strength are now roiled in politics along with unsettled budgets and uncertain force level projections. Current expectations revolve about indefinite fiscal and operational issues (difficult funding constraints and broadband threats). In the actual event of ''doing more with less,'' a practical response is to apply the creative power available from sound engineering judgement and the crucible of experience to the immediate needs of the Fleet. The attempt to shorten the path between advanced development effort and Fleet use has been tried occasionally in the past, often, without exemplary results. The Sustainable Hardware and Affordable Readiness Practices (SHARP) program, is a generic R&D effort under OpNav sponsorship that has been working steadily on sensible solutions to product engineering problems. Armed today with fast-time, large-scale computation abilities and modern tools for technical problem solving coupled with specialized engineering knowledge, it has been refreshed and is underway satisfying existing Fleet needs. The relationship between fully responsive engineering services and current operational needs is always demanding. The connection between advanced engineering development (6.3 category funds) and immediate Fleet usage brings added complexity and challenge, both technical and organizational. Illustrative examples of affordable engineering solutions to ''retain, revise, replace or retire'' questions are presented within the context of both Fleet realities and budgetary limitations. The discussion covers legacy system support, civil/military considerations and Fleet maintenance issues. It describes the substantial and critical payoffs i

关键词： Warships

来源：评论

学校读者我要写书评

暂无评论

An algorithm for the design of a residue-to-binary converter

An algorithm for the design of a residue-to-binary converter

引用

Midwest Symposium on Circuits and systems (MWSCAS)

作者： A.A. Hiasat H.S. Abdel-Aty-Zohdy Microelectronics System Design Laboratory Department of Electrical and Systems Engineering Oakland University Rochester MI USA

This paper presents a new algorithm which converts moduli (2/sup k/, 2/sup k/-1, 2/sup k/-1-1) residue numbers to their binary equivalents. A suitable hardware implementation which utilizes binary adders, and needing no memory, is proposed. If the system is pipelined, then the throughput rate is that of a single (3k-1) bits adder. Thus, hardware requirements and execution time are less, with corresponding larger dynamic range.

关键词： Algorithm design and analysis Signal processing algorithms Hardware Equations microelectronics Laboratories design engineering systems engineering and theory Throughput Adders

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：