检索结果-内蒙古大学图书馆

Improving Utilization of Dataflow Unit for Multi-Batch processing

ACM TRANSACTIONS ON ARCHITECTURE AND CODE OPTIMIZATION 2024年第1期21卷 1-26页

作者： Fan, Zhihua Li, Wenming Wang, Zhen Yang, Yu Ye, Xiaochun Fan, Dongrui Sun, Ninghui An, Xuejun Chinese Acad Sci State Key Lab Processors Inst Comp Technol Beijing Peoples R China Univ Chinese Acad Sci Beijing Peoples R China Chinese Acad Sci Inst Comp Technol 6 South Sci Acad Rd Beijing Peoples R China Univ Chinese Acad Sci 19A Yuquan Rd Beijing Peoples R China

Dataflow architectures can achieve much better performance and higher efficiency than general-purpose core, approaching the performance of a specialized design while retaining programmability. However, advanced application scenarios place higher demands on the hardware in terms of cross-domain and multi-batch processing. In this article, we propose a unified scale-vector architecture that can work in multiple modes and adapt to diverse algorithms and requirements efficiently. First, a novel reconfigurable interconnection structure is proposed, which can organize execution units into different cluster typologies as a way to accommodate different data-level parallelism. Second, we decouple threads within each DFG node into consecutive pipeline stages and provide architectural support. By time-multiplexing during these stages, dataflow hardware can achieve much higher utilization and performance. In addition, the task-based program model can also exploit multi-level parallelism and deploy applications efficiently. Evaluated in a wide range of benchmarks, including digital signal processing algorithms, CNNs, and scientific computing algorithms, our design attains up to 11.95x energy efficiency (performance-per-watt) improvement over GPU (v100), and 2.01x energy efficiency improvement over state-of-the-art dataflow architectures.

关键词： Utilization network-on-chip decoupled architecture batch processing

来源：评论

学校读者我要写书评

暂无评论

PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS, vOLUME 154: REAL-TIME signal processing, 1978.

PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ...

引用

Real-Time signal Process

The proceedings include 28 papers, 27 of them are indexed separately. Topics covered include advanced techniques of real-time signal processing in various fields, such as space information systems, radar data processing, missile guidance underwater acoustic imaging, wideband integrated optics. Also hardware architectures and algorithms for real-time signal processing are considered. Several presentations are devoted to digital approaches and analog implementations of real-time signal processing.

关键词： signal processing

来源：评论

学校读者我要写书评

暂无评论

Time-frequency analysis using peak-value sampling of spatial-temporal image data from streak camera

Time-frequency analysis using peak-value sampling of spatial...

引用

Conference on advanced signal processing algorithms, architectures, and implementations XIv

作者： Sun, KX Marlett, K Bechtel Nevada Livermore Operat Livermore CA 94551 USA

ISBN: (纸本)0819454974

A streak camera is a recording instrument in which spatial image is swept in time. creating a spatial-temporal image on a charge-coupled device (CCD). Traditional analysis for captured image data has been using uniform and as sampling points, in which a block of CCD pixel readouts are summed to give one reading. Equivalently simple area moving averages are applied concurrently while sampling, and high frequency content is reduced. To solve this problem. we use peak-value sampling procedure, based on the view from photoelectron statistics. After background correction. maximum values in spatial dimensions are selected to obtain time series data. A DSP filter is then applied and optimized for this time series. A Welch algorithm fast Fourier transform is applied to obtain power spectra. Segmented cumulative spectra is then calculated for global statistics and related to time domain fluctuations. Self similarity at different sweeping time-scales is used to recognize CCD pattern noise. Sinusoidal pattern noise is automatically corrected by peak-value sampling. Computational results show that time-frequency analysis using peak-value sampling algorithm and similar variants is far more effective in discovering high frequency oscillatory noise than traditional uniform binned sampling. We have applied this algorithm to analyze data produced by a 4096x4096 CCD streak camera illuminated with a macro pulse laser. High frequency oscillations in 6similar to10 GHz region were found in laser spectra. Spatial-temporal oscillations of this range are difficult to diagnose with conventional optoelectronic detectors on a per-shot basis. This work has led to improvement of laser design.

关键词： streak camera laser maximum value sampling image processing high frequency spectral analysis

来源：评论

学校读者我要写书评

暂无评论

Convolution theorems: partitioning the space of integral transforms: II

Convolution theorems: partitioning the space of integral tra...

引用

Proceedings of the 1999 advanced signal processing algorithms, architectures, and implementations IX

作者： Suter, Bruce W. Lindsey, Alan R. Air Force Research Lab Rome United States

Investigating a number of different integral transforms uncovers distinct patterns in the type of scale-based convolution theorems afforded by each. It is shown that scaling convolutions behave in quite a similar fashion to translational convolution in the transform domain, such that the many diverse transforms have only a few different forms for convolution theorems. The hypothesis is put forth that the space of integral transforms is partitionable based on these forms.

关键词： signal processing

来源：评论

学校读者我要写书评

暂无评论

Fault-tolerant arithmetic via time-shared TMR

Fault-tolerant arithmetic via time-shared TMR

引用

Proceedings of the 1999 advanced signal processing algorithms, architectures, and implementations IX

作者： Swartzlander Jr., Earl E. Univ of Texas at Austin Austin United States

Fault tolerance is increasingly important as society has come to depend on computers for more and more aspects of daily life. The current concern about the Y2K problems indicates just how we much we depend on accurate computers. This paper describes work on time-shared TMR, a technique which is used to provide arithmetic operations that produce correct results in spite of circuit faults.

关键词： Digital signal processing

来源：评论

学校读者我要写书评

暂无评论

signal processing issues in wireless sensor networks

Signal processing issues in wireless sensor networks

引用

advanced signal processing algorithms, architectures, and implementations Xv

作者： Poor, H. vincent Department of Electrical Engineering Princeton University Princeton NJ 08544 United States

Wireless sensor networks present a number of challenges to system designers, including notably the efficient use of limited resources such as bandwidth and energy. One way these challenges can be addressed is through the application of signal processing principles in the design, deployment and operation of sensor networks. After a discussion of general issues arising in this context, this talk will describe several recent developments in this area. These include the effects of receiver choice on energy efficiency, collaborative beam-forming, sensor scheduling, and distributed learning. Some of the work described in this talk can be found in Refs. 1-8.

关键词： signal processing

来源：评论

学校读者我要写书评

暂无评论

Linear system description using Wigner Distribution Functions

Linear system description using Wigner Distribution Function...

引用

advanced algorithms and architectures for signal processing II 1987

作者： vijaya Kumar, B.v.K. Devos, Keith J. Center for Excellence in Optical Data Processing Electrical and Computer Engineering Carnegie Mellon University PittsburghPA15213-3890 United States Applied Physics Laboratories BaltimoreMD United States

The Wigner Distribution Function (WDF) is a time-frequency descriptor capable of tracking the time-varying second order statistics in a signal. In this paper, we characterize linear systems in terms of the WDFs of the inputs and outputs. These input/output relations are provided for both continuous-time and discrete-time systems. An application of these results for the identification of a random, time-varying system is suggested. © 1988 SPIE. All rights reserved.

关键词： Linear systems

来源：评论

学校读者我要写书评

暂无评论

Algorithm-based fault tolerance for noncomputationally intensive applications

Algorithm-based fault tolerance for noncomputationally inten...

引用

advanced signal processing: algorithms, architectures, and implementations v

作者： Nair, v.S. venkatesan, S. Southern Methodist Univ. Dallas TX USA

ISBN: (纸本)0819416207

Algorithm-based fault tolerance (ABFT) has been proposed as a cost-effective approach to concurrent error detection. So far, the application of ABFT has been limited to computationally intensive applications that lend easily to high-level fault modeling. In this paper we extend the application of ABFT to non-computationally intensive applications. To that end, we first develop a fault model for such systems. Based on the fault model, we develop ABFT schemes for a set of graph theoretic as well as set theoretic problems. Application of the new schemes is illustrated with examples.

关键词： Fault tolerant computer systems

来源：评论

学校读者我要写书评

暂无评论

Second- and higher-order cyclostationary processing using acousto-optics

Second- and higher-order cyclostationary processing using ac...

引用

advanced signal processing: algorithms, architectures, and implementations v

作者： Sadler, Brian M. Army Research Lab. Adelphi MD USA

ISBN: (纸本)0819416207

In this paper we consider cyclostationary signal processing techniques implemented via acousto-optics (AO). Cyclic processing methods are reviewed and motivated, including the cyclic correlation and the cyclic spectrum. We show how a 1D AO spectrum analyzer can be used to detect the presence, and estimate the value, of cycle frequencies. The cyclic correlation can then be computed at cycle frequencies of interest using a 1D time-integrating correlator. Next we consider the problem of computing the (2D) cyclic correlation for all cycle frequencies and lags simultaneously. This is accomplished via an AO triple-product processor, configured in a manner similar to that used for ambiguity function generation. The cyclic spectrum can be obtained in a post-processing step by Fourier transforming the cyclic correlation in one dimension. We then consider higher order extensions of the cyclic correlation and show how a 2D slice of the 3D cyclic triple-correlation can be computed using an AO four-product processor.

关键词： signal processing

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

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：