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针对水声目标实测数据量庞大，LOFAR和DEMON分析计算量大的问题，设计了一个基于Visual C++ 6.0的数据库管理系统。管理系统通过ADO接口实现与SQL Server 2005数据库管理程序的数据交换，保证了数据稳定存储和高效传输。通过内存映射文件技术，实现了对大数据文件的快速读取。采用CPU与GPU并行计算进行了LOFAR和DEMON分析，实现了LOFAR和DEMON谱图的实时显示。...
针对复杂激励条件下的振动控制,对Jiles-atherton模型的磁致伸缩作动器在双层隔振系统中的振动主动控制进行了研究,以传统滑模控制为基础,提出了一种柔性神经网络滑模控制算法。用正则化方法设计了控制器的切换矩阵,建立了神经网络权值和柔性映射参数更新学习公式,并将该控制策略应用于双层隔振系统的振动主动控制中。通过单频、多频及随机信号激励进行仿真研究,结果表明：柔性神经网络滑模控制器具有较强的鲁棒...
分布式流体系结构及其编程模型与资源管理
流体系结构 大数据 编程模型 分布式计算
2016/6/3
利用互联网资源提供大数据计算服务面临着资源异构性、动态性与通信长延迟等方面的挑战，现有分布式计算模型仍存在一些不足。运用流计算模型提出分布式流体系结构，包括分布式流编程模型与资源管理等，能够高效支持多种并行执行模式。在10个CPU-GPU异构结点上实现了原型系统，仿真实验验证了7个不同的测试用例。实验结果表明，与本地串行计算相比，分布式流体系结构可以平均提高39倍计算性能，具有较大的应用潜力。
Dynamics of a ring network of phase-only oscillators
Synchronization Coupled oscillators Networks
2015/8/27
We investigate the existence, stability and bifurcation of phase-locked motions in a ring network consisting of phase-only oscillators arranged in multiple simple rings (sub-rings)which are themselves...
The interseismic velocity field of the central Apennines from a dense GPS network
Solutions combination GPS surveys
2015/8/26
Since 1999, we have repeatedly surveyed the central Apennines through a dense survey-style geodetic network, the Central Apennines Geodetic Network (CAGeoNet). CAGeoNet consists of 123 benchmarks dist...
Detailed Network Measurements Using Sparse Graph Counters: The Theory
Measuring the network traffic network counter memory storage counters
2015/8/21
Measuring network flow sizes is important for tasks like accounting/billing, network forensics and security. Per-flow accounting is considered hard because it requires that many counters b...
Convergence to Equilibrium in Local Interaction Games
Game theory model the network the dynamic modeling
2015/8/21
We study a simple game-theoretic model for the spread of an innovation in a network. The diffusion of the innovation is modeled as the dynamics of a coordination game in which the adoption of a common...
Fast Convergence of Natural Bargaining Dynamics in Exchange Networks
Network model games a distributed algorithm
2015/8/21
Bargaining networks model the behavior of a set of players that need to reach pairwise agree-ments for making profits. Nash bargaining solutions are special outcomes of such games that are both stable...
Optimal Wire and Transistor Sizing for Circuits with Non-Tree Topology
Optimal Wire Transistor Sizing Circuits Non-Tree Topology
2015/8/14
Conventional methods for optimal sizing of wires and transistors use linear RC circuit models and the Elmore delay as a measure of signal delay. If the RC circuit has a tree topology the sizing proble...
Quadtree Based JBIG Compression.
Measuring Volterra kernels
Volterra nonlinear system the kernel linear pseudo noise electroacoustic transducer
2015/8/13
Volterra series have been in the engineering literature for some time now, and yet there have been few attempts to measure Volterra kernels. This paper discusses techniques for measuring the Volterra ...
Low rate distributed quantization of noisy observations
Quantitative distributed network nodes a random variable
2015/8/13
We consider the achievable performance of a network of nodes in which the nodes view a common random variable corrupted by a site specific noise and share low rate information about their observations...
Noisy Network Coding
Compress-forward discrete memoryless network Gaussian network interference relay channel network coding noisy network coding relaying two-way relay channel
2015/8/12
A noisy network coding scheme for communicating messages between multiple sources and destinations over a general noisy network is presented. For multi-message multicast networks, the scheme naturally...
Generalized access control strategies for integrated services token passing systems
Integrated services LAN application factory automation distributed computing multimedia communication
2015/8/12
The demand for integrated services local area networks is increasing at a rapid pace with the advent of many new and exciting applications: office and factory automation, distributed computing, and mu...
We consider the problem of determining optimal wire widths for a power or ground network, subject to limits on wire widths, voltage drops, total wire area, current density, and power dissipation. To a...