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

954 篇 会议
22 篇 期刊文献

馆藏范围

976 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

750 篇 工学
- 398 篇 电气工程
- 223 篇 信息与通信工程
- 206 篇 计算机科学与技术...
- 128 篇 软件工程
- 100 篇 航空宇航科学与技...
- 98 篇 测绘科学与技术
- 56 篇 电子科学与技术（可...
- 51 篇 仪器科学与技术
- 43 篇 控制科学与工程
- 25 篇 光学工程
- 22 篇 生物医学工程（可授...
- 18 篇 机械工程
- 12 篇 建筑学
- 9 篇 土木工程
- 9 篇 化学工程与技术
- 9 篇 生物工程
- 7 篇 水利工程
- 7 篇 环境科学与工程（可...
- 7 篇 安全科学与工程
432 篇 理学
- 348 篇 物理学
- 51 篇 数学
- 15 篇 系统科学
- 15 篇 统计学（可授理学、...
- 14 篇 生物学
- 13 篇 化学
- 13 篇 海洋科学
- 8 篇 地球物理学
120 篇 医学
- 117 篇 临床医学
30 篇 管理学
- 17 篇 管理科学与工程(可...
- 11 篇 图书情报与档案管...
6 篇 军事学
3 篇 经济学
2 篇 法学
1 篇 教育学
1 篇 文学
1 篇 农学

主题

99 篇 signal processin...
82 篇 sensors
79 篇 target tracking
75 篇 target detection
69 篇 signal to noise ...
64 篇 radar
60 篇 detection and tr...
50 篇 object detection
46 篇 filtering (signa...
44 篇 signal processin...
42 篇 data association
38 篇 data fusion
36 篇 feature extracti...
36 篇 radar signal pro...
33 篇 electronic filte...
31 篇 error analysis
30 篇 clutter
29 篇 radar detection
27 篇 signal detection
26 篇 data processing

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...
5 篇 national laborat...
4 篇 qinetiq ltd malv...
4 篇 science and tech...
4 篇 nanjing research...
4 篇 school of inform...
4 篇 univ connecticut...
4 篇 raytheon co walt...
4 篇 national key lab...
4 篇 school of scienc...
3 篇 beijing key labo...
3 篇 国防科技大学
3 篇 def res & dev ca...
3 篇 mcmaster univ de...

作者

19 篇 kirubarajan t
18 篇 bar-shalom y
17 篇 bar-shalom yaako...
15 篇 kirubarajan t.
14 篇 willett peter
12 篇 blair wd
9 篇 tharmarasa r.
8 篇 sinha a
7 篇 drummond oe
7 篇 drummond oliver ...
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
4 篇 pattipati kr
4 篇 paffenroth randy
4 篇 brown gc

语言

958 篇 英文
11 篇 中文
5 篇 其他
2 篇 土耳其文

检索条件"任意字段=Conference on Signal and Data Processing of Small Targets 2010"

共 976 条记录，以下是271-280 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：

Ambiguous data Association and Entangled Attribute Estimation

Ambiguous Data Association and Entangled Attribute Estimatio...

引用

conference on signal and data processing of small targets

作者： Trawick, David J. Du Toit, Philip C. Paffenroth, Randy C. Norgard, Gregory J. Numerica Corp Loveland CO 80538 USA

ISBN: (纸本)9780819490711

This paper presents an approach to attribute estimation incorporating data association ambiguity. In modern tracking systems, time pressures often leave all but the most likely data association alternatives unexplored, possibly producing track inaccuracies. Numerica's Bayesian Network Tracking database, a key part of its Tracker Adjunct Processor, captures and manages the data association ambiguity for further analysis and possible ambiguity reduction/resolution using subsequent data. Attributes are non-kinematic discrete sample space sensor data. They may be as distinctive as aircraft ID, or as broad as friend or foe. Attribute data may provide improvements to data association by a process known as Attribute Aided Tracking (AAT). Indeed, certain uniquely identifying attributes (e. g. aircraft ID), when continually reported, can be used to define data association (tracks are the collections of observations with the same ID). However, attribute data arriving infrequently, combined with erroneous choices from ambiguous data associations, can produce incorrect attribute and kinematic state estimation. Ambiguous data associations define the tracks that are entangled with each other. Attribute data observed on an entangled track then modify the attribute estimates on all tracks entangled with it. For example, if a red track and a blue track pass through a region of data association ambiguity, these tracks become entangled. Later red observations on one entangled track make the other track more blue, and reduce the data association ambiguity. Methods for this analysis have been derived and implemented for efficient forward filtering and forensic analysis.

关键词： Attribute Estimation Attribute Aided Tracking Classification Aided Tracking Multiple Hypothesis Tracking Uncertainty Management Dynamic Bayesian Networks Late data

来源：评论

学校读者我要写书评

暂无评论

Maritime Surveillance with Synthetic Aperture Radar (SAR) and Automatic Identification System (AIS) Onboard a Microsatellite Constellation

Maritime Surveillance with Synthetic Aperture Radar (SAR) an...

引用

conference on Image and signal processing for Remote Sensing XVIII

作者： Peterson, E. H. Zee, R. E. Fotopoulos, G. Univ Toronto Inst Aerosp Studies Space Flight Lab 4925 Dufferin St Toronto ON Canada Univ Texas Dallas Dept Geosci Richardson TX 75083 USA

ISBN: (纸本)9780819492777

New developments in small spacecraft capabilities will soon enable formation-flying constellations of small satellites, performing cooperative distributed remote sensing at a fraction of the cost of traditional large spacecraft missions. As part of ongoing research into applications of formation-flight technology, recent work has developed a mission concept based on combining synthetic aperture radar (SAR) with automatic identification system (AIS) data. Two or more microsatellites would trail a large SAR transmitter in orbit, each carrying a SAR receiver antenna and one carrying an AIS antenna. Spaceborne AIS can receive and decode AIS data from a large area, but accurate decoding is limited in high traffic areas, and the technology relies on voluntary vessel compliance. Furthermore, vessel detection amidst speckle in SAR imagery can be challenging. In this constellation, AIS broadcasts of position and velocity are received and decoded, and used in combination with SAR observations to form a more complete picture of maritime traffic and identify potentially non-cooperative vessels. Due to the limited transmit power and ground station downlink time of the microsatellite platform, data will be processed onboard the spacecraft. Herein we present the onboard data processing portion of the mission concept, including methods for automated SAR image registration, vessel detection, and fusion with AIS data. Georeferencing in combination with a spatial frequency domain method is used for image registration. Wavelet-based speckle reduction facilitates vessel detection using a standard CFAR algorithm, while leaving sufficient detail for registration of the filtered and compressed imagery. Moving targets appear displaced from their actual position in SAR imagery, depending on their velocity and the image acquisition geometry;multiple SAR images acquired from different locations are used to determine the actual positions of these targets. Finally, a probabilistic inference mode

关键词： SAR AIS speckle filtering data fusion image registration moving object detection

来源：评论

学校读者我要写书评

暂无评论

signal Model and Jamming Characteristics of a 35GHz Millimeter-wave FMCW SAR

Signal Model and Jamming Characteristics of a 35GHz Millimet...

引用

conference on Infrared, Millimeter-Wave, and Terahertz Technologies II

作者： Yu Wen Zhao SiWei Song XiaoQuan Liu ZhongWei Beijing Inst Tracking & Telecommun Technol Beijing Peoples R China

ISBN: (纸本)9780819493170

In the field of airborne remote sensing, the combination of compact frequency-modulated continuous wave (FMCW) technology and synthetic aperture radar (SAR) paves a way for the development of the lightweight, cost-effective, high-resolution miniaturized millimeter imaging radar, which is suitable for small platforms such as unmanned aerial vehicles (UAV) in military and civil use. Compared with the conventional pulsed SAR, the continuous platform motion during the transmission of a sweep and the reception of the corresponding echo will induce serious Doppler frequency shift as a reconstructed image distortion effect. That means, in FMCW SAR, the so-called stop-and-go approximation for pulsed SAR is no longer valid because of the relatively long sweeps which the FMCW SAR transmits. Based on the analysis of the signal model, a data processing algorithm is introduced to compensate this Doppler frequency shift in order to complete the FMCW SAR imaging process. Through point targets simulation of a 35GHz millimeter FMCW SAR, the validity of the model and efficiency of the processing algorithm are demonstrated without extra computation load. As for military use, the technology of FMCW SAR jamming should always be considered. Regarding of the complexity and difficulty of FMCW SAR jamming, a novel semi-matching interference solution is presented in this paper to obtain part of the processing gain after the dechirp-on-receive configuration, resulting in an effective jamming effect. Considering of the FMCW SAR characteristics, several experiments are made to seek significant jamming conclusions, which is an innovative exploration.

关键词： Frequency modulated continuous wave (FMCW) synthetic aperture radar (SAR) signal model semi-matching jamming point targets simulation

来源：评论

学校读者我要写书评

暂无评论

The Kepler End-to-End data Pipeline: From Photons to Far Away Worlds

The Kepler End-to-End Data Pipeline: From Photons to Far Awa...

引用

IEEE Aerospace conference

作者： Cooke, Brian Thompson, Richard Standley, Shaun CALTECH Jet Prop Lab 4800 Oak Grove Dr Pasadena CA 91109 USA NASA Ames Res Ctr Moffett Field CA 94035 USA

ISBN: (纸本)9781457705571

Launched by NASA on 6 March 2009, the Kepler Mission has been observing more than 100,000 targets in a single patch of sky between the constellations Cygnus and Lyra almost continuously for the last two years looking for planetary systems using the transit method. As of October 2011, the Kepler spacecraft has collected and returned to Earth just over 290 GB of data, identifying 1235 planet candidates with 25 of these candidates confirmed as planets via ground observation. Extracting the telltale signature of a planetary system from stellar photometry where valid signal transients can be as small as a 40 ppm is a difficult and exacting task. The end-to-end process of determining planetary candidates from noisy, raw photometric measurements is discussed. The Kepler mission is described in overview and the Kepler technique for discovering exoplanets is discussed. The design and implementation of the Kepler spacecraft, tracing the data path from photons entering the telescope aperture through raw observation data transmitted to the ground operations team is described. The technical challenges of operating a large aperture photometer with an unprecedented 95 million pixel detector are addressed as well as the onboard technique for processing and reducing the large volume of data produced by the Kepler photometer. The technique and challenge of day-to-day mission operations that result in a very high percentage of time on target is discussed. This includes the day to day process for monitoring and managing the health of the spacecraft, the annual process for maintaining sun on the solar arrays while still keeping the telescope pointed at the fixed science target, the process for safely but rapidly returning to science operations after a spacecraft initiated safing event and the long term anomaly resolution process. The ground data processing pipeline, from the point that science data is received on the ground to the presentation of preliminary planetary candidates and sup

关键词： Photons

来源：评论

学校读者我要写书评

暂无评论

Bottleneck ANN:dealing with small amount of data in shift-MLLR adaptation

Bottleneck ANN:dealing with small amount of data in shift-ML...

引用

2012 IEEE 11th International conference on signal processing(ICSP 2012)

作者： Zbyněk Zajíc Luk Machlica Luděk Müller Department of Cybernetics Faculty of Applied Sciences University of West BohemiaPlzenCzech Republic

The aim of this work is to propose a refinement of the shift-MLLR (shift Maximum Likelihood Linear Regression) adaptation of an acoustics model in the case of limited amount of adaptation data, which can lead to ill-conditioned transfor-mations matrices. We try to suppress the influence of badly estimated transformation parameters utilizing the bottleneck Artificial Neural Network (ANN). The ill-conditioned shift-MLLR transformation is propagated through a bottleneck ANN (suitably trained beforehand), and the output of the net is used as the new refined transformation. To train the ANN the well and the badly conditioned shift-MLLR transformations are used as outputs and inputs of ANN, respectively.

关键词： ASR, Adaptation, shift-MLLR, ANN, bottleneck

来源：评论

学校读者我要写书评

暂无评论

The Kepler End-to-End data Pipeline: From Photons to Far Away Worlds

The Kepler End-to-End Data Pipeline: From Photons to Far Awa...

引用

IEEE Aerospace conference

作者： Brian Cooke Richard Thompson Shaun Standley Jet Propulsion Laboratory California Institute of Technology 4800 Oak Grove Dr. Pasadena CA 91109 Orbital Sciences Corporation NASA Ames Research Center Moffett Field CA 94035

ISBN: (纸本)9781457705564

关键词： Kepler mission Kepler Photon PLANETARY SYSTEMS channels (data transmission) stellar photometry Spacecraft PIPELINE data ground Solar cell arrays Telescopes planets Ground operations data products large volume data

来源：评论

学校读者我要写书评

暂无评论

Identity Variance for Multi-Object Estimation

Identity Variance for Multi-Object Estimation

引用

conference on signal and data processing of small targets

作者： Crouse, David F. Willett, Peter Univ Connecticut Dept Elect & Comp Engn Storrs CT 06269 USA

ISBN: (纸本)9780819487476

We define the notion of an "identity variance" for expressing the level of uncertainty between target identities in a PDF representing the states of multiple targets. This, coupled with an OSPA covariance introduced in past work, can form a basis for evaluating both the accuracy of the state estimates as well as the confidence in the identities of the states. A potential application of the identity variance is as a criterion for choosing between waveforms optimized for producing accurate position estimates versus good classification information on a multifunction radar.

关键词： Error analysis Radar Matrices Particles Computer engineering Current controlled current source data analysis data processing Particle filters signal processing

来源：评论

学校读者我要写书评

暂无评论

ANGLE ONLY TRACKING WITH PARTICLE FLOW FILTERS

ANGLE ONLY TRACKING WITH PARTICLE FLOW FILTERS

引用

conference on signal and data processing of small targets

作者： Daum, Fred Huang, Jim Raytheon Co Waltham MA 02451 USA

ISBN: (纸本)9780819487476

We show the results of numerical experiments for tracking ballistic missiles using only angle measurements. We compare the performance of an extended Kalman filter with a new nonlinear filter using particle flow to compute Bayes' rule. For certain difficult geometries, the particle flow filter is an order of magnitude more accurate than the EKF. Angle only tracking is of interest in several different sensors;for example, passive optics and radars in which range and Doppler data are spoiled by jamming.

关键词： Particles Particle filters Nonlinear filtering Spherical lenses Electronic filtering Error analysis Missiles Filtering (signal processing) Palladium Sensors

来源：评论

学校读者我要写书评

暂无评论

Improved Multiframe Association for Tracking Maneuvering targets

Improved Multiframe Association for Tracking Maneuvering Tar...

引用

conference on signal and data processing of small targets

作者： Habtemariam, Biruk K. Tharmarasa, R. Nandakumaran, N. McDonald, M. Kirubarajan, T. McMaster Univ ECE Dept Hamilton ON Canada Curtin Univ Technol Perth WA Australia Def Res & Dev Canada Ottawa ON Canada

ISBN: (纸本)9780819487476

data association is the crucial part of any multitarget tracking algorithm in a scenario with multiple closely spaced targets, low probability of detection and high false alarm rate. Multiframe assignment, which solves the data association problem as a constrained optimization, is one of the widely accepted methods to handle the measurement origin uncertainty. If the targets do not maneuver, then multiframe assignment with one or two frames will be enough to find the correct data association. However, more frames must be considered in the data association for maneuvering targets. Also, a target maneuver might be hard to detect when maneuvering index, which is the function of sampling time, is small. In this paper, we propose an improved multiframe data association with better cost calculation using backward multiple model recursion, which increases the maneuvering index. The effectiveness of the proposed algorithm is demonstrated with simulated data.

关键词： multiframe data association interacting multiple model maneuvering targets smoothing out-of-sequence measurements

来源：评论

学校读者我要写书评

暂无评论

Dynamic Sector processing using 2D Assignment for Rotating Radars

Dynamic Sector Processing using 2D Assignment for Rotating R...

引用

conference on signal and data processing of small targets

作者： Habtemariam, Biruk K. Tharmarasa, R. Pelletier, M. Kirubarajan, T. McMaster Univ ECE Dept Hamilton ON Canada FLIR Raders Laval PQ Canada

ISBN: (纸本)9780819487476

Electronically scanned array radars as well as mechanically steered rotating antennas return measurements with different time stamps during the same scan while sweeping form one region to another. data association algorithms process the measurements at the end of the scan in order to satisfy the common one measurement per track assumption. data processing at the end of a full scan resulted in delayed target state update. This issue becomes more apparent while tracking fast moving targets with low scan rate sensors. In this paper, we present new dynamic sector processing algorithm using 2D assignment for continuously scanning radars. A complete scan can be divided into sectors, which could be as small as a single detection, depending on the scanning rate and sparsity of targets. data association followed by filtering and target state update is done dynamically while sweeping from one end to another. Along with the benefit of immediate track updates, continuous tracking results in challenges such as multiple targets spanning multiple sectors and targets crossing consecutive sectors. Also, associations performed in the current sector may require changes in association done in previous sectors. Such difficulties are resolved by the proposed 2D assignment algorithm that implements an incremental Hungarian assignment technique. The algorithm offers flexibility with respect to assignment variables for fusing of measurements received in consecutive sectors. Furthermore the proposed technique can be extended to multiframe assignment for jointly processing data from multiple scanning radars. Experimental results based on rotating radars are presented.

关键词： target tracking rotating radar dynamic data association 2D assignment Hungarian assignment

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98页 << < 24 25 26 27 28 29 30 31 32 33 > >>

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：