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

472 篇 会议
15 篇 期刊文献

馆藏范围

487 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

369 篇 工学
- 173 篇 电气工程
- 162 篇 计算机科学与技术...
- 128 篇 信息与通信工程
- 100 篇 软件工程
- 44 篇 测绘科学与技术
- 27 篇 控制科学与工程
- 23 篇 电子科学与技术（可...
- 22 篇 仪器科学与技术
- 16 篇 生物医学工程（可授...
- 14 篇 机械工程
- 12 篇 光学工程
- 10 篇 生物工程
- 7 篇 化学工程与技术
- 6 篇 安全科学与工程
- 5 篇 水利工程
- 5 篇 航空宇航科学与技...
- 3 篇 材料科学与工程（可...
139 篇 理学
- 84 篇 物理学
- 35 篇 数学
- 14 篇 系统科学
- 11 篇 统计学（可授理学、...
- 10 篇 化学
- 10 篇 生物学
- 3 篇 地球物理学
105 篇 医学
- 102 篇 临床医学
- 5 篇 基础医学(可授医学...
- 5 篇 特种医学
19 篇 管理学
- 11 篇 图书情报与档案管...
- 9 篇 管理科学与工程(可...
3 篇 法学
- 3 篇 社会学
1 篇 经济学
1 篇 农学

主题

36 篇 target tracking
34 篇 signal processin...
32 篇 signal to noise ...
27 篇 signal processin...
26 篇 sensors
22 篇 data association
22 篇 radar
21 篇 target detection
18 篇 data fusion
18 篇 detection and tr...
14 篇 object detection
14 篇 multiple target ...
13 篇 training
12 篇 filtering (signa...
12 篇 estimation
12 篇 particle filters
11 篇 filtering
11 篇 tracking
11 篇 feature extracti...
11 篇 bayesian methods

机构

8 篇 cyberrnd inc cul...
7 篇 univ calif san d...
7 篇 univ connecticut...
4 篇 univ connecticut...
3 篇 qinetiq ltd malv...
3 篇 nanjing research...
3 篇 mcmaster univ de...
3 篇 numerica corp ft...
3 篇 numerica corp lo...
3 篇 usn ctr surface ...
3 篇 national key lab...
3 篇 univ connecticut...
2 篇 chus sherbrooke ...
2 篇 univ sherbrooke ...
2 篇 lockheed martin ...
2 篇 beihang univ sch...
2 篇 cub def applicat...
2 篇 univ melbourne d...
2 篇 leonardo uk edin...
2 篇 thales nederland...

作者

12 篇 kirubarajan t
11 篇 bar-shalom y
8 篇 kirubarajan t.
7 篇 bar-shalom yaako...
6 篇 blair wd
6 篇 sinha a
5 篇 willett peter
5 篇 drummond oliver ...
4 篇 sworder dd
4 篇 maskell s
4 篇 drummond oe
4 篇 danford scott
4 篇 boyd je
4 篇 willett p
3 篇 blair w. dale
3 篇 gray je
3 篇 kragel bret d.
3 篇 sinha a.
3 篇 hernandez ml
3 篇 lim et

语言

479 篇 英文
4 篇 中文
3 篇 土耳其文
1 篇 其他

检索条件"任意字段=16th Conference on Signal and Data Processing of Small Targets"

共 487 条记录，以下是331-340 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：

Radar measurement noise variance estimation with several targets of opportunity - art. no. 62360M

Radar measurement noise variance estimation with several tar...

引用

18th conference on signal and data processing of small targets

作者： Osborne, Richard W., III Bar-Shalom, Yaakov Univ Connecticut Storrs CT USA

ISBN: (纸本)0819462926

A number of methods exist to track a target's uncertain motion through space using inherently inaccurate sensor measurements. A powerful method of adaptive estimation is the interacting multiple model (IMM) estimator. In order to carry out state estimation from the noisy measurements of a sensor, however, the filter should have knowledge of the statistical characteristics of the noise associated with that sensor. the statistical characteristics (accuracies) of real sensors, however, are not always available, in particular for legacy sensors. this paper presents a method of determining the measurement noise variances of a sensor by using multiple IMM estimators while tracking targets whose motion is not known - targets of opportunity. Combining techniques outlined in [1] and [3], the likelihood functions are obtained for a number of IMM estimators, each with different assumptions on the measurement noise variances. then a search is carried out to bracket the variances of the sensor measurement noises. the end result consists of estimates of the measurement noise variances of the sensor in question.

关键词： tracking noise estimation

来源：评论

学校读者我要写书评

暂无评论

Nonparametric complex background prediction algorithm using FCM clustering for dim point infrared targets detection

Nonparametric complex background prediction algorithm using ...

引用

4th International conference on Communications, Circuits and Systems (ICCCAS 2006)

作者： Wu, Honggang Li, Xiaofeng Chen, Yuebin Li, Zaiming Univ Elect Sci & Technol China Sch Commun & Informat Engn Chengdu 610054 Peoples R China

ISBN: (纸本)0780395840

A nonparametric background prediction algorithm using fuzzy c-means (FCM) clustering is proposed to enhance the detection of dim small infrared targets. in image data. the target of interest is assumed to have a very small spatial spread, and is obscured by heavy background clutter. the input image data is firstly segmented using FCM clustering, and then the nonparametric regressive method is applied to predict background in each cluster respectively. Subsequently the background is subtracted from the input data, leaving components of the target signal in the residual noise. Experiment results show better detecting performance for the output data by the algorithm of this paper than by other traditional methods.

关键词： Image analysis

来源：评论

学校读者我要写书评

暂无评论

Encoding the l_p ball from limited measurements

Encoding the <i>l</i><sub>p</sub> ball from limited measurem...

引用

16th data Compression conference

作者： Candes, Emmanuel Romberg, Justin CALTECH Appl & Computat Math Pasadena CA 91125 USA

ISBN: (纸本)0769525458

We address the problem of encoding signals which are sparse, i.e. signals that are concentrated on a set of small support. Mathematically, such signals are modeled as elements in the l(p) ball for some p <= 1 We describe a strategy for encoding elements of the l(p) ball which is universal in that 1) the encoding procedure is completely generic, and does not depend on p (the sparsity of the signal), and 2) it achieves near-optimal minimax performance simultaneously for all p < 1. What makes our coding procedure unique is that it requires only a limited number of nonadaptive measurements of the underlying sparse signal;we show that near-optimal performance can be obtained with a number of measurements that is roughly proportional to the number of bits used by the encoder. We end by briefly discussing these results in the context of image compression.

关键词： signal encoding

来源：评论

学校读者我要写书评

暂无评论

Comparison of two MDA algorithms for a problem in missile defense

Comparison of two MDA algorithms for a problem in missile de...

引用

18th conference on signal and data processing of small targets

作者： Areta, J. Bar-Shalom, Y. Levedahl, M. Univ Connecticut Storrs CT USA

ISBN: (纸本)0819462926

In this paper we compare the performance of two Multidimensional Assignment Algorithms (MDA), the Lagrangean Relaxation based S-D algorithm and the Sequential m-best 2-D algorithm, applied to a realistic problem in missile defense surveillance. the benchmark problem consists of a set of sources that provide "event" (track) estimates of multiple launches, via a number of communication networks to a Fusion Center (FC) which has to perform data association prior to fusion. the network model used "loses" the information tag that distinguishes reports from the same source transmitted through different networks, i.e., the track identity (ID) assigned by the source is not passed on. Only a track ID assigned by the network, and the source ID accompany the track. thus detection and elimination of track duplications at the FC is needed. the proposed hierarchical approach to the problem requires the solution of several MDA problems before calculating the fused estimate, so accuracy of the solution of each is crucial. Examples with several launches, sources and networks are presented to compare the performance of the two assignment algorithms.

关键词： multidimensional assignment data association benchmark

来源：评论

学校读者我要写书评

暂无评论

Exploiting target amplitude information to improve multi-target tracking - art. no. 623618

Exploiting target amplitude information to improve multi-tar...

引用

18th conference on signal and data processing of small targets

作者： Ehrman, Lisa M. Blair, W. Dale Georgia Inst Technol Georgia Tech Res Inst Sensors & Electromagnet Applicat Lab Atlanta GA 30332 USA

ISBN: (纸本)0819462926

Closely-spaced (but resolved) targets pose a challenge for measurement-to-track data association algorithms. Since the Mahalanobis distances between measurements collected on closely-spaced targets and tracks are similar, several elements of the corresponding kinematic measurement-to-track cost matrix are also similar. Lacking any other information on which to base assignments, it is not surprising that data association algorithms make mistakes. One ad hoc approach for mitigating this problem is to multiply the kinematic measurement-to-track likelihoods by amplitude likelihoods. However, this can actually be detrimental to the measurement-to-track association process. With that in mind, this paper pursues a rigorous treatment of the hypothesis probabilities for kinematic measurements and features. three simple scenarios are used to demonstrate the impact of basing data association decisions on these hypothesis probabilities for Rayleigh, fixed-amplitude, and Rician targets. the first scenario assumes that the tracker carries two tracks but only one measurement is collected. this provides insight into more complex scenarios in which there are fewer measurements than tracks. the second scenario includes two measurements and one track. this extends naturally to the case with more measurements than tracks. Two measurements and two tracks are present in the third scenario, which provides insight into the performance of this method when the number of measurements equals the number of tracks. In all cases, basing data association decisions on the hypothesis probabilities leads to good results.

关键词： signal to noise ratio Kinematics Mahalanobis distance Distance measurement Detection and tracking algorithms Radar Target detection Time metrology Antennas Bessel functions

来源：评论

学校读者我要写书评

暂无评论

Nonlinear estimation techniques for impact point prediction of ballistic targets - art. no. 62360C

Nonlinear estimation techniques for impact point prediction ...

引用

18th conference on signal and data processing of small targets

作者： Hardiman, David F. Kerce, J. Clayton Brown, George C. USA Redstone Arsenal AL 35898 USA

ISBN: (纸本)0819462926

this paper considers three nonlinear estimation algorithms for impact point prediction (IPP) of ballistic targets. the paper assumes measurements are available from a 3D surveillance radar or phased array radar over some portion of the ballistic trajectory. the ballistic target (BT) is tracked using an extended Kalman filter (EKF), an unscented Kalman filter (UKF), and a particle filter (PF). With the track estimate as an initial condition, the equations of motion for the BT are integrated to obtain a prediction of the impact point. this paper compares the performance of the EKF, UKF, and a particular choice of PF for impact point prediction. the traditional Extended Kalman Filter equations are based on a first-order Taylor, series approximation of the nonlinear transformations (expanded about the latest state estimate). Both the Unscented Kalman Filter and the Particle Filter allow nonlinear systems to be modeled without prior linearizion. the primary focus of the analysis presented in this paper is comparing the performance and accuracy of the Extended Kalman Filter (EKF), the Unscented Kalman Filter (UKF), and the chosen Particle Filter implementation for impact point prediction. the three filtering techniques are compared to the theoretical Cramer-Rao lower bounds (CRLB) of estimation error.

关键词： estimation non-linear dynamic system Cramer-Rao lower bound (CRLB) Kalman filter

来源：评论

学校读者我要写书评

暂无评论

DG-tune: A dynamic signal analyzer for performing offline post-maintenance testing of emergency diesel generators in standby nuclear service

DG-tune: A dynamic signal analyzer for performing offline po...

引用

16th Annual Joint ISA POWID/EPRI Controls and Instrumentation conference and 49th Annual ISA Power Industry Division, POWID Symposium 2006

作者： Bowman, Mark D. Bradley, Edward J. Brehm, Richard L. Tennessee Valley Authority

this paper defines a method of testing the speed performance of an Emergency Diesel Generator (DG) in standby nuclear service. this method can be performed with the Diesel Generator offline, avoiding the need to perform load acceptance testing. this testing method, known as DG-Tune, characterizes the dynamic response of the entire Diesel Generator speed control system (speed sensor, electric governor/controller, fuel rack actuator, fuel system, and diesel engine) by introducing small speed perturbations and monitoring the closed-loop system response to the perturbation with a dynamic signal analyzer. the system perturbation and response data can then be mathematically evaluated using well established closed-loop control theory. this report also describes tuning strategies for optimizing the tuning of a typical Diesel Generator speed controller.

关键词： Electric generators

来源：评论

学校读者我要写书评

暂无评论

Neural network for polarimetric radar target classification

Neural network for polarimetric radar target classification

引用

14th European signal processing conference, EUSIPCO 2006

作者： Soleti, R. Cantini, L. Berizzi, F. Capria, A. Calugi, D. Dept. of Information Engineering University of Pisa Via Caruso 16 56122 Pisa Italy Italy

In this paper, the Artificial Neural Network (ANN) paradigm is applied to radar target classification. Radar returns are simulated via an e.m code and time-domain polarimetric target features are extracted by means of Prony's algorithm. Two different type of feedforward neural network has been adopted in order to classify the target echo, namely the Multi Layer Perceptron (MLP) and the Self Organizing Maps (SOM). the above-mentioned network have been tested on two type of simulated targets: a small tonnage ship with a low level of detail and medium tonnage ship with higher details. Each network has been trained on a wide range of signal-to-noise ratio, and with different data records number in order to assess the training invariant properties of each network. Finally, in the validation phase a fixed number of records has been considered to evaluate networks performances, which are given in terms of classification error.

关键词： signal to noise ratio

来源：评论

学校读者我要写书评

暂无评论

Track management in a multisensor MHT for targets with aspect-dependent SNR - art. no. 623613

Track management in a multisensor MHT for targets with aspec...

引用

18th conference on signal and data processing of small targets

作者： Blanding, Wayne R. Willett, Peter K. Bar-Shalom, Yaakov Coraluppi, Stefano Univ Connecticut Dept ECE Storrs CT 06269 USA

ISBN: (纸本)0819462926

In many active sonar tracking applications, targets frequently undergo fading detection performance in which the target's detection probability can shift suddenly from a high to a low value. this characteristic is a function of the undersea environment. Using a multistatic active sonar problem, we examine the performance of track management (initiation and termination) routines where the target detection probability is based on an underlying Hidden Markov Model (HMM) with high and low detection states. Using a likelihood ratio test, we develop the optimum track initiation performance as measured by a System Operating Characteristic, similar to a Receiver Operating Characteristic, which plots the probability of initiating a true track versus the probability of initiating a false track. We show that near-optimal performance can be attained using track initiation logic that differentiates the measurements as to receiver source in an "M detections of N scans from C sensors" type of rule. Performance can further be improved by using a composite track initiation test that combines two or three such rules in a logical OR operation. We next show that the use of a Shiryaev-Roberts test for track termination yields the quickest detection of false tracks for a given duration of true target tracks when compared to a Page test and rule-based tests of the form "M or fewer detections from K scans".

关键词： target tracking multistatic sonar track initiation

来源：评论

学校读者我要写书评

暂无评论

PetaOp/second FPGA signal processing for SETI and radio astronomy

PetaOp/second FPGA signal processing for SETI and radio astr...

引用

40th Asilomar conference on signals, Systems, and Computers, ACSSC '06

作者： Parsons, Aaron Backer, Donald Chang, Chen Chapman, Daniel Chen, Henry Crescini, Patrick De Jesus, Christina Dick, Chris Droz, Pierre MacMahon, David Meder, Kirsten Mock, Jeff Nagpal, Vinayak Nikolic, Borivoje Parsa, Arash Richards, Brian Siemion, Andrew Wawrzynek, John Werthimer, Dan Wright, Melvyn University of California Berkeley Berkeley CA 94720 United States Xilinx Corporation

ISBN: (纸本)1424407850

Our group, the Center for Astronomy signal processing and Electronics Research (CASPER), seeks to speed the development of radio astronomy signal processing instrumentation by designing and demonstrating a scalable, upgradeable, FPGA-based computing platform and software design methodology that targets a range of real-time radio telescope signal processing applications. this project relies on a small number of modular, connectible hardware components and open-source signal processing libraries which can be reused and scaled as hardware capabilities expand. We have demonstrated the use of 10 Gb Ethernet packetization and switches to manage high-bandwidth inter-board communication. Using these tools, we have built spectrometers, correlators, beamformers, VLBI data recorders, and many other applications. Future directions for the development include a fully packetized scalable correlator, additional library and toolflow development, and a next generation of modular FPGA-based hardware.

关键词： Radio astronomy

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49页 << < 30 31 32 33 34 35 36 37 38 39 > >>

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：