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

847 篇 会议
17 篇 期刊文献
1 篇 学位论文

馆藏范围

865 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

629 篇 工学
- 348 篇 电气工程
- 193 篇 计算机科学与技术...
- 185 篇 信息与通信工程
- 121 篇 软件工程
- 88 篇 航空宇航科学与技...
- 87 篇 测绘科学与技术
- 38 篇 电子科学与技术（可...
- 36 篇 仪器科学与技术
- 31 篇 控制科学与工程
- 30 篇 光学工程
- 11 篇 机械工程
- 9 篇 建筑学
- 9 篇 土木工程
- 8 篇 船舶与海洋工程
- 7 篇 生物医学工程（可授...
- 7 篇 安全科学与工程
- 6 篇 水利工程
- 6 篇 化学工程与技术
- 6 篇 生物工程
408 篇 理学
- 327 篇 物理学
- 58 篇 数学
- 19 篇 统计学（可授理学、...
- 18 篇 系统科学
- 11 篇 化学
- 11 篇 海洋科学
- 11 篇 生物学
- 6 篇 地球物理学
115 篇 医学
- 113 篇 临床医学
19 篇 管理学
- 10 篇 图书情报与档案管...
- 9 篇 管理科学与工程(可...
7 篇 军事学
4 篇 法学
3 篇 经济学
3 篇 文学
1 篇 教育学

主题

99 篇 signal processin...
74 篇 sensors
72 篇 target detection
67 篇 target tracking
62 篇 radar
60 篇 detection and tr...
55 篇 signal to noise ...
45 篇 object detection
44 篇 filtering (signa...
41 篇 signal processin...
40 篇 data association
36 篇 data fusion
33 篇 error analysis
31 篇 electronic filte...
30 篇 signal detection
30 篇 feature extracti...
30 篇 radar signal pro...
28 篇 data processing
26 篇 clutter
25 篇 data modeling

机构

19 篇 univ connecticut...
10 篇 cyberrnd inc cul...
7 篇 univ calif san d...
6 篇 numerica corp lo...
6 篇 univ connecticut...
5 篇 key laboratory o...
5 篇 numerica corp lo...
4 篇 qinetiq ltd malv...
4 篇 nanjing research...
4 篇 univ connecticut...
4 篇 raytheon co walt...
4 篇 national key lab...
4 篇 national laborat...
3 篇 beijing key labo...
3 篇 royal institute ...
3 篇 mcmaster univ de...
3 篇 numerica corp ft...
3 篇 sri int menlo pk...
3 篇 radar research l...
3 篇 mcmaster univ ec...

作者

19 篇 kirubarajan t
18 篇 bar-shalom y
17 篇 kirubarajan t.
17 篇 bar-shalom yaako...
14 篇 willett peter
12 篇 blair wd
10 篇 drummond oliver ...
9 篇 tharmarasa r.
8 篇 sinha a
7 篇 drummond oe
7 篇 willett p
6 篇 huang jim
6 篇 daum fred
5 篇 maskell s
5 篇 romeo kevin
5 篇 barshalom y
5 篇 danford scott
5 篇 xing mengdao
4 篇 pattipati kr
4 篇 paffenroth randy

语言

850 篇 英文
10 篇 其他
3 篇 中文
2 篇 土耳其文

检索条件"任意字段=Conference on Signal and Data Processing of Small Targets 2000"

共 865 条记录，以下是431-440 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：

Equivalence classes of future paths for sensor allocation and threat analysis

Equivalence classes of future paths for sensor allocation an...

引用

17th conference on signal and data processing of small targets

作者： Svenson, P Swedish Def Res Agcy Div Command & Control Syst Dept Data & Informat Fus SE-16490 Stockholm Sweden

ISBN: (纸本)0819459186

Sensor allocation and threat analysis are difficult fusion problem that can sometimes be approximately solved using simulations of the future movement of adversary units. In addition to requiring, detailed motion models, such simulation also requires large amounts of computational resources, since a large number of possibilities must be examined. In this paper, we extend our previously introduced framework for doing such simulations more efficiently. The framework is based on defining equivalence classes of future paths of a set of units. In the simplest case, two paths are considered equivalent if they give rise to the same set of observations. For sensor management, each considered sensor plan thus entails an equivalence relation on the set of future paths. This can be used to significantly reduce the number of "alternative futures" that need to be considered for the simulation. For threat analysis, the equivalence relation can instead be based on the perceived threat against own units. We describe how the equivalence classes induced by such relations could be used to improve the visualization of threat analysis systems. User interaction can also be used to refine the equivalence classes;we argue that such interaction will be essential for international operations where is it difficult to define actors and targets.

关键词： sensor management resource allocation threat analysis

来源：评论

学校读者我要写书评

暂无评论

Bayesian tracking with Dempster-Shafer measurements

Bayesian tracking with Dempster-Shafer measurements

引用

17th conference on signal and data processing of small targets

作者： Mahler, R Lockheed Martin MS2 Tact Syst Eagan MN USA

ISBN: (纸本)0819459186

The theory and practice of single-sensor, single-target tracking is well understood when measurement uncertainties are due entirely to randomness. In this case the Bayes filter and its special cases and approximations, such as the Kalman filter, constitute the foundations of tracking. However, the measurement uncertainties in many observation-types (features, natural-language reports, etc.) can axise from ignorance as well as randomness. Approaches such as the Dempster-Shafer (DS) theory claim to address such information but continue to be controversial, especially in tracking. In other papers this year we have shown that this can be attributed to a lack of formal physical modeling techniques. If familiar measurement models axe extended in a natural way, measurement fusion using DS combination can be subsumed within the Bayesian theory. In this paper we apply these results to introduce the "evidential filter," a special case of the Bayes filter applicable whenever measurement uncertainty can be modeled in DS form. We derive closed-form formulas for the evidential filter;and show that data-update using Dempster's combination is a special case of Bayes' rule. We also briefly show how to incorporate the evidential filter into multitarget tracking techniques.

关键词： Filtering (signal processing) Fuzzy logic Electronic filtering Digital filtering Linear filtering Sensors Motion measurement Electroactive polymers Mathematical modeling Motion models

来源：评论

学校读者我要写书评

暂无评论

A novel 2-D DOA estimation algorithm with superior resolution and reduced sidelobes - art. no. 591302

A novel 2-D DOA estimation algorithm with superior resolutio...

引用

17th conference on signal and data processing of small targets

作者： Marino, CS Chaua, PM Univ Calif San Diego Dept Elect & Comp Engn La Jolla CA 92093 USA

ISBN: (纸本)0819459186

We present a 2-D Direction of arrival algorithm whose resolution is superior to that of the subspace class of algorithms and sidelobes are reduced compared to most algorithms. The algorithm is based on the 2-D AR Power Spectral Density (2-D ARPSD) applied to a uniformly spaced data set (space-time) which transforms the space-time data to spatial frequency (wavenumber, which is a function of the direction of arrival) and temporal frequency in a high resolution context. This is done by modeling the sensor array data with a 2-D AR model. The 2-D AR parameters are then used in a specialized form of a 2-D FFT to create an enhanced wavenumber-frequency image. A wavenumber vector for a specific narrowband temporal frequency is extracted and compared to other high resolution algorithm such as MUSIC. Our results exhibit superior performance in low SNR and short sample sized scenarios and when mismatch occurs in the subspace techniques. Our technique also exhibits reduced sidelobes as compared with traditional methods.

关键词： Autoregressive models data modeling signal to noise ratio Sensors Interference (communication) Image enhancement Temporal resolution Antennas Computer simulations Spectral resolution

来源：评论

学校读者我要写书评

暂无评论

Imaging of subsurface targets using a 3D quadtree algorithm

Imaging of subsurface targets using a 3D quadtree algorithm

引用

2005 IEEE International conference on Acoustics, Speech, and signal processing, ICASSP '05

作者： Gürbüz, Ali Cafer McClellan, James H. Scott Jr., Waymond R. Georgia Institute of Technology Atlanta GA 30332-0250 United States

ISBN: (纸本)0780388747

The imaging of subsurface targets using Ground Penetrating Radar (GPR) is becoming an increasingly important area of research. Conventional image formation techniques expend large amounts of computation to fully resolve a region, even a region of clutter. However, by using multi-resolution techniques, e.g, quadtree algorithms, potential targets and clutter can be discriminated in a computationally efficient way. Prior work has focused on the development of 2D quadtree algorithms for surface targets. For mine detection, target depth adds another dimension;thus, we have developed a 3D quadtree algorithm, and applied a multi-stage detector that uses the energy change between quadtree stages to discriminate target and clutter regions. This algorithm is then tested on computer-generated data, as well as experimental data collected from a model mine field. Results show that target location information can be obtained even under near field and small aperture conditions. © 2005 IEEE.

关键词： Imaging systems

来源：评论

学校读者我要写书评

暂无评论

Fusion of uncertain combat identity declarations and implication rules using the belief function theory

Fusion of uncertain combat identity declarations and implica...

引用

17th conference on signal and data processing of small targets

作者： Ristic, B Smets, P Def Sci & Technol Org ISRD Labs 200 Edinburgh SA 5111 Australia

ISBN: (纸本)0819459186

Surveillance systems typically perform target identification by fusing target ID declarations supplied by individual sensors with a prior knowledge-base. Target ID declarations are usually uncertain in the sense that: (1) their associated confidence factor is less than unity, (2) they are non-specific (the true hypothesis belongs to a subset A of the universe 9). Prior knowledge is typically represented by a set of possibly uncertain implication rules. An example of such a rule is: if the target is Boeing 737 than it is neutral or friendly with probability 0.8. The uncertainty auain manifests itself here in two ways: the rule holds only with a certain probability (typically less than 1.0) and the rule is non-specific (neutral or friendly). The paper describes how the fusion of ID declarations and the implication rules can be handled elegantly within the framework of the belief function theory as understood by the transferable belief model (TBM). Two illustrative examples are worked out in details in order to clarify the theory.

关键词： data fusion target identification belief function evidential theory transferrable belief model implication rules

来源：评论

学校读者我要写书评

暂无评论

Tracking and classification with attribute data from multiple legacy sensors - art. no. 591319

Tracking and classification with attribute data from multipl...

引用

17th conference on signal and data processing of small targets

作者： Drummond, OE CyberRnD Inc Culver City CA 90230 USA

ISBN: (纸本)0819459186

An obvious use for feature and attribute data is for classification and in combat identification. The term classification is used broadly here to include discrimination, detection, target typing, identification, and pattern recognition. An additional use is in the data (or track) association process to reduce the misassociations, often called feature aided tracking. Previous papers discussed the integration of features and attributes into target track processing in addition to their use in multiple target classification. The distinction is made between feature and attribute data because they are processed differently. The term features applies to random variables from continuous sample space and attributes applies to random variable data from discrete sample space. The primary concern of this paper is to address processing of attributes with data from legacy sensors. For example, in fusion of sensor data from distributed sensors, a sensor might distribute the likelihood of the most likely target class (or attribute property) and no information on the other possibilities. In another example, a sensor might distribute the likelihood that the target is any one of a number of target classes, a subset of all the target classes, rather than indicating one specific target class. Both attribute aided tracking and (post tracker) target classification are addressed for these examples of incomplete data from legacy sensors. The purpose of this paper is to show the feasibility of simple approaches to dealing with data from some legacy sensors.

关键词： Multiple target tracking feature aided tracking features attributes categorical features multiple models Bayesian methods Kalman filter.

来源：评论

学校读者我要写书评

暂无评论

Imaging of subsurface targets using a 3D quadtree algorithm

Imaging of subsurface targets using a 3D quadtree algorithm

引用

IEEE 13th signal processing and Communications Applications conference, SIU 2005

作者： Gürbüz, Ali Cafer McClellan, James H. Scott Jr., Waymond R. Elektrik ve Bilgisayar Mühendisliǧi Bölümü Georgia Insitute of Technology Atlanta

ISBN: (纸本)0780392396

The imaging of subsurface targets using Ground Penetrating Radar (GPR) is becoming an increasingly important area of research. Conventional image formation techniques expend large amounts of computational resources on fully resolving a region, even regions of clutter. However, by using multi-resolution techniques - e.g, quadtree algorithms - potential targets and clutter can be discriminated in a computationally efficient way. Prior work has focused on the development of 2D quadtree algorithms for surface targets. For mine detection, target depth adds another dimension;thus, we have developed a 3D quadtree algorithm, and applied a multi-stage detector that uses the energy change between quadtree stages to discriminate target and clutter regions. This algorithm is then tested on computer-generated data, as well as experimental data collected from a model mine field. Results show that target location information can be obtained even under near field and small aperture conditions. © 2005 IEEE.

关键词： Imaging techniques

来源：评论

学校读者我要写书评

暂无评论

Performance analysis of underwater hydrophone arrays in tracking manoeuvring sea-surface targets - art. no. 591314

Performance analysis of underwater hydrophone arrays in trac...

引用

17th conference on signal and data processing of small targets

作者： Hernandez, ML Goddard, N QinetiQ Ltd Malvern Technol Ctr CSIP Malvern WR14 3PS Worcs England

ISBN: (纸本)0819459186

In this paper, we assess the capability of underwater hydrophone (UH) arrays to locate and track manoeuvring targets. A UH array is a horizontal line array of omnidirectional pressure sensors that is deployed on the seabed. The measurements at each UH array are then affected by two idiosyncrasies, termed "source direction ambiguity" and "coning error". In this paper, the posterior Cramer-Rao lower bound (PCRLB) is used as the measure of system performance, providing a bound on the optimal achievable accuracy of target state estimation. We demonstrate the impact of the measurement idiosyncrasies on the PCRLB, with the bound shown to be greater (poorer performance) than when using standard bearings-only sensors. We also include clutter (i.e. we allow each measurement to be either target generated or a false positive), as well as both state-dependent measurement errors and a state-dependent probability of detection. Building on previous work, we show that the measurement origin uncertainty can again be expressed as an information reduction factor (IRF), with this IRF now shown to be a function of both the target range and orientation in relation to each UH array. We consider simulated scenarios that contain features characteristic of recent sea trials conducted by QinetiQ Ltd. The two key features of the trial scenarios is that we have very sparse prior knowledge, and each target has the potential to perform a series of manoeuvres. We use a recent PCRLB formulation for tracking manoeuvring targets that approximates the potentially multi-modal target distribution using a best-fitting Gaussian distribution. We present simulation results for multi-sensor scenarios, demonstrating that this is indeed a difficult tracking problem. Tracking is particularly difficult when the target crosses the line of the UH arrays, making triangulation difficult;and when the target is in the "end-fire" of at least one UH array. It is also difficult to detect and triangulate distant targets.

关键词： posterior cramer-rao lower bound underwater hydrophone Arrays manoeuvring target tracking information reduction factor best-fitting Gaussian approximation

来源：评论

学校读者我要写书评

暂无评论

Magnetic sensor nodes for enhanced situational awareness in urban settings

Magnetic sensor nodes for enhanced situational awareness in ...

引用

conference on Unattended Ground Sensor Technologies and Applications VII

作者： Trammell, H Shelby, R Mathis, K Dalichaouch, Y Kumar, S GE Infrastruct Secur San Diego CA 92128 USA

ISBN: (纸本)0819457817

Military forces conducting urban operations are in need of non-line-of-sight sensor technologies for enhanced situational awareness. Disposable sensors ought to be able to detect and track targets through walls and within rooms in a building and relay that information in real-time to the soldier. We have recently developed magnetic sensor nodes aimed towards low cost, small size, low power consumption, and wireless communication. The current design uses a three-axis thin-film magnetoresistive sensor for low bandwidth B-field monitoring of magnetic targets such as vehicles and weapons carried by personnel. These sensor nodes are battery operated and use IEEE 802.15.4 communication link for control and data transmission. Power consumption during signal acquisition and communication is approximately 300 mW per channel. We will present and discuss node array performance, future node development and sensor fusion concepts.

关键词： Sensors Magnetic sensors Magnetism Target detection Situational awareness sensors Digital signal processing Weapons Logic Wireless communications Electronics

来源：评论

学校读者我要写书评

暂无评论

Training lvcsr systems on thousands of hours of data

Training lvcsr systems on thousands of hours of data

引用

2005 IEEE International conference on Acoustics, Speech, and signal processing, ICASSP '05

作者： Evermann, G. Chan, H.Y. Gales, M.J.F. Jia, B. Mrva, D. Woodland, P.C. Yu, K. Cambridge University Engineering Department Trumpington Street Cambridge CB2 1PZ United Kingdom VoiceSignal Technologies United Kingdom

ISBN: (纸本)0780388747

Typical systems for large vocabulary conversational speech recognition (LVCSR) have been trained on a few hundred hours of carefully transcribed acoustic training data. This paper describes an LVCSR system for the conversational telephone speech (CTS) task trained on more than 2000 hours of data for which only approximate transcriptions were available. The challenges of dealing which such a large data set and the accuracy improvements over the small baseline system are discussed. The effect on both acoustic and language modelling performance is studied. Overall increasing the training data size from 360h to 2200h and optimising the training procedure reduced the word error rate on the DARPA/NIST 2003 eval set by about 20% relative. © 2005 IEEE.

关键词： Speech recognition

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87页 << < 40 41 42 43 44 45 46 47 48 49 > >>

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：