检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

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

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

129 篇 会议
1 篇 期刊文献

馆藏范围

130 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

111 篇 工学
- 82 篇 电气工程
- 40 篇 信息与通信工程
- 37 篇 计算机科学与技术...
- 20 篇 软件工程
- 14 篇 仪器科学与技术
- 5 篇 光学工程
- 5 篇 电子科学与技术（可...
- 5 篇 测绘科学与技术
- 2 篇 力学（可授工学、理...
- 2 篇 控制科学与工程
- 2 篇 航空宇航科学与技...
- 1 篇 材料科学与工程（可...
68 篇 理学
- 45 篇 物理学
- 28 篇 数学
- 3 篇 统计学（可授理学、...
- 1 篇 系统科学
38 篇 医学
- 38 篇 临床医学

主题

53 篇 signal processin...
17 篇 time-frequency a...
16 篇 image processing
14 篇 fourier transfor...
9 篇 signal to noise ...
9 篇 digital signal p...
9 篇 electronic filte...
7 篇 computer arithme...
7 篇 signal processin...
7 篇 interference (co...
7 篇 array processing
7 篇 sensors
6 篇 parallel process...
6 篇 convolution
5 篇 frequency modula...
5 篇 matrices
5 篇 acoustics
5 篇 computing system...
5 篇 beamforming
4 篇 deconvolution

机构

6 篇 cuny ny 10021 us...
3 篇 villanova univ c...
3 篇 univ windsor vls...
3 篇 univ calif los a...
3 篇 drexel univ dept...
2 篇 us dept def ft g...
2 篇 ctr rech ecoles ...
2 篇 informat syst la...
2 篇 univ pittsburgh ...
2 篇 univ calif los a...
2 篇 mit lincoln lab ...
2 篇 univ calif los a...
2 篇 saab ab gothenbu...
2 篇 michigan state u...
1 篇 mathsoft seattle...
1 篇 sri int menlo pk...
1 篇 trw co inc redon...
1 篇 naval surface wa...
1 篇 mit elect res la...
1 篇 univ suwon dept ...

作者

10 篇 cohen l
7 篇 yao k
4 篇 lorenzelli f
4 篇 amin mg
3 篇 nelson dj
3 篇 galleani l
3 篇 zhang ym
3 篇 loughlin p
3 篇 paindavoine m
3 篇 rabinkin dv
3 篇 nawab sh
3 篇 chun j
3 篇 jullien ga
2 篇 a. worm
2 篇 flanagan jl
2 篇 davis nolan
2 篇 yang f
2 篇 suter bw
2 篇 schulte mj
2 篇 miller wc

语言

130 篇 英文

检索条件"任意字段=Conference on Advanced Signal Processing - Algorithms, Architectures, and Implementations VII"

共 130 条记录，以下是121-130 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

Separating Cognitive Processes with Principal Components Analysis of EEG Time-Frequency Distributions

Separating Cognitive Processes with Principal Components Ana...

引用

conference on advanced signal processing algorithms, architectures, and Implementantions XviiI

作者： Bernat, Edward M. Nelson, Lindsay D. Holroyd, Clay B. Gehring, William J. Patrick, Christopher J. Univ Minnesota Dept Psychol Minneapolis MN 55455 USA Univ Victoria Dept Psychol Victoria BC Canada Univ Michigan Dept Psychol Ann Arbor MI 48109 USA

ISBN: (纸本)9780819472946

Measurement of EEG event-related potential (ERP) data has been most commonly undertaken in the time-domain, which can be complicated to interpret when separable activity overlaps in time. When the overlapping activity has distinct frequency characteristics, however, time-frequency (TF) signal processing techniques can be useful. The current report utilized ERP data from a cognitive task producing typical feedback-related negativity (FRN) and P300 ERP components which overlap in time. TF transforms were computed using the binomial reduced interference distribution (RID), and the resulting TF activity was then characterized using principal components analysis (PCA). Consistent with previous work, results indicate that the FRN was more related to theta activity (3-7 Hz) and P300 more to delta activity (below 3 Hz). At the same time, both time-domain measures were shown to be mixtures of TF theta and delta activity, highlighting the difficulties with overlapping activity. The TF theta and delta measures, on the other hand, were largely independent from each other, but also independently indexed the feedback stimulus parameters investigated. Results support the view that TF decomposition can greatly improve separation of overlapping EEG/ERP activity relevant to cognitive models of performance monitoring.

关键词： Time-frequency analysis Principal component analysis Electroencephalography signal processing Brain Electrodes Psychology signal attenuation Time metrology Transform theory

来源：评论

学校读者我要写书评

暂无评论

Tuning Time-Frequency methods for the detection of metered HF speech

Tuning Time-Frequency methods for the detection of metered H...

引用

conference on advanced signal processing algorithms, architectures and implementations XII

作者： Nelson, DJ Smith, LH US Dept Def Ft George G Meade MD 20755 USA

ISBN: (纸本)0819445584

Speech is metered if the stresses occur at a nearly regular rate. Metered speech is common in poetry, and it can occur naturally in speech, if the speaker is spelling a word or reciting words or numbers from a list. In radio communications, the CQ request, call sign and other codes are frequently metered. In tactical communications and air traffic control, location, heading and identification codes may be metered. Moreover metering may be expected to survive even in HF communications, which are corrupted by noise, interference and mistuning. For this environment, speech recognition and conventional machine-based methods are not effective. We describe Time-Frequency methods which have been adapted successfully to the problem of mitigation of HF signal conditions and detection of metered speech. These methods are based on modeled time and frequency correlation properties of nearly harmonic functions. We derive these properties and demonstrate a performance gain over conventional correlation and spectral methods. Finally, in addressing the problem of HF single sideband (SSB) communications, the problems of carrier mistuning, interfering signals, such as manual Morse, and fast automatic gain control (AGC) must be addressed. We demonstrate simple methods which may be used to blindly mitigate mistuning and narrowband interference, and effectively invert the fast automatic gain function.

关键词： signal to noise ratio signal processing signal detection Optical filters Time-frequency analysis Interference (communication) Automatic control Electronic filtering Receivers RF communications

来源：评论

学校读者我要写书评

暂无评论

Adaptive array beamforming with fixed-point arithmetic matrix inversion using Givens rotations

Adaptive array beamforming with fixed-point arithmetic matri...

引用

conference on advanced signal processing algorithms, architectures, and implementations XI

作者： Rabinkin, DV Song, W Vai, MM Nguyen, H MIT Lincoln Lab Lexington MA 02420 USA

ISBN: (纸本)0819441880

Adaptive array systems require the periodic solution of the well-known w = (R) over tilde (-1)v equation in order to compute optimum adaptive array weights. The covariance matrix (R) over tilde is estimated by forming a product of noise sample matrices X : (R) over tilde = (XX)-X-H. The operations-count cost of performing the required matrix inversion in real time can be prohibitively high for a high bandwidth system with a large number of sensors. Specialized hardware may be required to execute the requisite computations in real time. The choice of algorithm to perform these computations must be considered in conjunction with the hardware technology used to implement the computation engine. A systolic architecture implementation of the Givens rotation method for matrix inversion was selected to perform adaptive weight computation. The bit-level systolic approach enables a simple ASIC design and a very low power implementation. The bit-level systolic architecture must be implemented with fixed-point arithmetic to simplify the propagation of data through the computation cells. The Givens rotation approach has a highly parallel implementation and is ideally suited for a systolic implementation. Additionally, the adaptive weights are computed directly from the sample matrix X in the voltage domain, thus reducing the required dynamic range needed in carrying out the computations. An analysis was performed to determine the required fixed-point precision needed to compute the weights for an adaptive array system operating in the presence of interference. Based on the analysis results. it was determined that the precision of a floating-point computation can be well approximated with a 13-bit to 19-bit word length fixed point computation for typical system jammer-to-noise levels. This property has produced an order-of-magnitude reduction in required hardware complexity. A synthesis-based ASIC design process was used to generate preliminary layouts. These layouts were used t

关键词： Very large scale integration Chemical elements Computing systems Sensors Statistical analysis Computer architecture Matrices Radar Electroluminescence signal processing

来源：评论

学校读者我要写书评

暂无评论

Superresolution imaging: a survey of current techniques

Superresolution imaging: a survey of current techniques

引用

conference on advanced signal processing algorithms, architectures, and Implementantions XviiI

作者： Cristobal, G. Gil, E. Sroubek, F. Flusser, J. Miravet, C. Rodriguez, F. B. CSIC Inst Opt Serrano 121 E-28006 Madrid Spain ASCR Inst Informat Theory & Automat Prague Czech Republic Univ Autonoma Madrid Escuela Politecn Super Madrid Spain

ISBN: (纸本)9780819472946

Imaging plays a key role in many diverse areas of application, such as astronomy, remote sensing, microscopy, and tomography. Owing to imperfections of measuring devices (e.g., optical degradations, limited size of sensors) and instability of the observed scene (e.g., object motion, media turbulence), acquired images can be indistinct, noisy, and may, exhibit insufficient spatial and temporal resolution. In particular, several external effects blur images. Techniques for recovering the original image include blind deconvolution (to remove blur) and superresolution (SR). The stability of these methods depends on having more than one image of the same frame. Differences between images are necessary to provide new information, but they can be almost unperceivable. State-of-the-art SR techniques achieve remarkable results in resolution enhancement by estimating the subpixel shifts between images, but they lack any apparatus for calculating the blurs. In this paper, after introducing a review of current SR, techniques we describe two recently developed SR methods by the authors. First, we introduce a variational method that minimizes a regularized energy function with respect to the high resolution image and blurs. In this way we establish a unifying way to simultaneously estimate the blurs and the high resolution image. By estimating blurs we automatically estimate shifts with subpixel accuracy, which is inherent for good SR performance. Second, an innovative learning-based algorithm using a neural architecture for SR is described. Comparative experiments on real data illustrate the robustness and utilization of both methods.

关键词： superresolution deconvolution energy minimization probabilistic neural network sequence processing

来源：评论

学校读者我要写书评

暂无评论

Hardware/software trade-offs for advanced 3G channel coding

Hardware/software trade-offs for advanced 3G channel coding

引用

Design, Automation and Test in Europe conference and Exhibition

作者： H. Michel A. Worm M. Munch N. Wehn Institute of Microelectronic System Design University of Kaiserslautern Kaiserslautern Germany ASIC Design Laboratories Zaventem Belgium

ISBN: (纸本)0769514715

Third generation's wireless communications systems comprise advanced signal processing algorithms that increase the computational requirements more than ten-fold over 2G's systems. Numerous existing and emerging standards require flexible implementations ("software radio"). Thus efficient implementations of the performance-critical parts as Turbo decoding on programmable architectures are of great interest. Besides high-performance DSPs, application-customized RISC cores offer the required performance while still maintaining the aspired flexibility. This paper presents for the first time Turbo decoder implementations on customized RISC cores and compares the results with implementations on state-of-the-art VLIW DSPs. The results of our studies show that the Log-MAP performance is about 50% higher that on an ST120, a current VLIW architecture.

关键词： Hardware Channel coding Decoding Digital signal processing Reduced instruction set computing VLIW signal generators Wireless communication signal processing algorithms Software standards

来源：评论

学校读者我要写书评

暂无评论

Correctly rounded floating-point division for DSP-enabled FPGAs

Correctly rounded floating-point division for DSP-enabled FP...

引用

International conference on Field Programmable Logic and Applications

作者： Bogdan Pasca Altera European Technology Centre High Wycombe UK

Floating-point division is a very costly operation in FPGA designs. High-frequency implementations of the classic digit-recurrence algorithms for division have long latencies (of the order of the number fraction bits) and consume large amounts of logic. Additionally, these implementations require important routing resources, making timing closure difficult in complete designs. In this paper we present two multiplier-based architectures for division which make efficient use of the DSP resources in recent Altera FPGAs. By balancing resource usage between logic, memory and DSP blocks, the presented architectures maintain high frequencies is full designs. Additionally, compared to classical algorithms, the proposed architectures have significantly lower latencies. The architectures target faithfully rounded results, similar to most elementary functions implementations for FPGAs but can also be transformed into correctly rounded architectures with a small overhead. The presented architectures are built using the Altera DSP Builder advanced framework and will be part of the default blockset.

关键词： Digital signal processing Polynomials Field programmable gate arrays Approximation error Memory management

来源：评论

学校读者我要写书评

暂无评论

Trends in design of massively parallel coprocessors implemented in digital ASICs

Trends in design of massively parallel coprocessors implemen...

引用

International Joint conference on Neural Networks (IJCNN)

作者： P. Foldesy Analogic and Neural Computing Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary

This paper collects the most recent parallel coprocessors and highlights the recent trends. It is shown that the single chip massively parallel processor implementations seem to disappear from the scientific investigations (with the exception of low-level near-sensor image processing). Meanwhile, the formerly developed architectures have moved inside complex system-on-chips/microprocessors. The common aspect of the recent architectures is the advanced processing element and internal interconnection solutions, and the dominant mid-grain parallelism (i.e. up to a hundred processing element per chip).

关键词： Coprocessors Application specific integrated circuits Concurrent computing Parallel processing Systolic arrays Radar signal processing signal processing algorithms Laboratories Automation Image processing

来源：评论

学校读者我要写书评

暂无评论

Low power implementation of a turbo-decoder on programmable architectures

Low power implementation of a turbo-decoder on programmable ...

引用

Asia and South Pacific Design Automation conference

作者： F. Gilbert A. Worm N. Wehn Institute of Microelectronic Systems Department of Electrical Engineering and Information Technology University of Kaiserslautern Germany

ISBN: (纸本)0780366336

Low power is an extremely important issue for future mobile radio systems. Channel decoders are essential building blocks of base-band signal processing units in mobile terminal architectures. Thus low power implementations of advanced channel decoding techniques are mandatory. In this paper we present a low power implementation of the most sophisticated channel decoding algorithm (turbo-decoding) on programmable architectures. Low power optimization is performed on two abstraction levels: on the system level by the use of an intelligent cancellation technique, and on the implementation level by the use of dynamic voltage scaling. With these techniques we can reduce the worst case energy consumption to 55% using data of state-of-the-art processors. Our approach is also applicable for hardware implementations. To the best of our knowledge, this is the first in-depth study of low power implementations of turbo-decoders based on voltage scheduling for third generation wireless systems.

关键词： Dynamic voltage scaling Turbo codes Iterative decoding Processor scheduling Forward error correction signal processing algorithms Channel coding Error correction Redundancy Bit error rate

来源：评论

学校读者我要写书评

暂无评论

Energy-Efficient Synthetic-Aperture Radar processing on a Manycore Architecture

Energy-Efficient Synthetic-Aperture Radar Processing on a Ma...

引用

International conference on Parallel processing (ICPP)

作者： Zain-Ul-Abdin Anders Åhlander Bertil Svensson Centre for Research on Embedded Systems (CERES) Halmstad University Halmstad Sweden Saab AB Gothenburg Sweden

The next generation radar systems have high performance demands on the signal processing chain. Examples include the advanced image creating sensor systems in which complex calculations are to be performed on huge sets of data in real time. Many core architectures are gaining attention as a means to overcome the computational requirements of the complex radar signal processing by exploiting massive parallelism inherent in the algorithms in an energy efficient manner. In this paper, we evaluate a many core architecture, namely a 16-core Epiphany processor, by implementing two significantly large case studies, viz. an auto focus criterion calculation and the fast factorized back-projection algorithm, both key components in modern synthetic aperture radar systems. The implementation results from the two case studies are compared on the basis of achieved performance and programmability. One of the Epiphany implementations demonstrates the usefulness of the architecture for the streaming based algorithm (the auto focus criterion calculation) by achieving a speedup of 8.9x over a sequential implementation on a state-of-the-art general-purpose processor of a later silicon technology generation and operating at a 2.7x higher clock speed. On the other case study, a highly memory-intensive algorithm (fast factorized back projection), the Epiphany architecture shows a speedup of 4.25x. For embedded signal processing, low power dissipation is equally important as computational performance. In our case studies, the Epiphany implementations of the two algorithms are, respectively, 78x and 38x more energy efficient.

关键词： signal processing algorithms Computer architecture Synthetic aperture radar Parallel processing Radar imaging Image resolution

来源：评论

学校读者我要写书评

暂无评论

advanced receiver algorithms for MIMO wireless communications 06

Advanced receiver algorithms for MIMO wireless communication...

引用

Design, Automation and Test in Europe conference and Exhibition

作者： A. Burg M. Borgmanr M. Wenk C. Studer H. Bolcskei Integrated Systems Laboratory ETH Zurich Zurich Switzerland Communication Technology Laboratory ETH Zurich Zurich Switzerland

ISBN: (纸本)9783981080100

We describe the VLSI implementation of MIMO detectors that exhibit close-to optimum error-rate performance, but still achieve high throughput at low silicon area. In particular, algorithms and VLSI architectures for sphere decoding (SD) and K-best detection are considered, and the corresponding trade-offs between uncoded error-rate performance, silicon area, and throughput are explored. We show that SD with a per-block run-time constraint is best suited for practical implementations

关键词： MIMO Wireless communication signal processing algorithms Detectors Throughput Very large scale integration Silicon Receiving antennas Laboratories Maximum likelihood decoding

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共13页 << < 4 5 6 7 8 9 10 11 12 13 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

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：