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

750 篇 会议
252 篇 期刊文献
4 册 图书

馆藏范围

1,006 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

397 篇 工学
- 170 篇 计算机科学与技术...
- 153 篇 信息与通信工程
- 140 篇 软件工程
- 126 篇 电气工程
- 105 篇 电子科学与技术（可...
- 40 篇 生物医学工程（可授...
- 36 篇 控制科学与工程
- 35 篇 光学工程
- 33 篇 生物工程
- 28 篇 仪器科学与技术
- 13 篇 航空宇航科学与技...
- 11 篇 机械工程
- 9 篇 化学工程与技术
- 8 篇 交通运输工程
- 7 篇 船舶与海洋工程
- 6 篇 动力工程及工程热...
219 篇 理学
- 112 篇 数学
- 94 篇 物理学
- 48 篇 统计学（可授理学、...
- 36 篇 生物学
- 18 篇 系统科学
- 10 篇 化学
47 篇 管理学
- 24 篇 管理科学与工程(可...
- 22 篇 图书情报与档案管...
- 7 篇 工商管理
31 篇 医学
- 27 篇 临床医学
- 16 篇 基础医学(可授医学...
- 11 篇 药学(可授医学、理...
10 篇 农学
- 7 篇 作物学
7 篇 法学
- 7 篇 社会学
3 篇 经济学
3 篇 文学
2 篇 教育学
1 篇 军事学

主题

196 篇 signal processin...
138 篇 signal processin...
53 篇 frequency
52 篇 multiaccess comm...
52 篇 digital signal p...
48 篇 signal to noise ...
47 篇 bandwidth
46 篇 finite impulse r...
43 篇 fading
41 篇 delay
38 篇 equations
37 篇 detectors
36 篇 algorithm design...
33 篇 image coding
33 篇 additive noise
32 篇 least squares ap...
32 篇 adaptive filters
32 篇 autocorrelation
31 篇 filters
31 篇 performance anal...

机构

72 篇 centre for signa...
35 篇 center for signa...
28 篇 center for commu...
23 篇 center for commu...
21 篇 center for commu...
11 篇 center of commun...
10 篇 national mobile ...
10 篇 department of el...
10 篇 communications a...
10 篇 communications a...
10 篇 department of el...
9 篇 center for commu...
9 篇 center of signal...
8 篇 centre for signa...
7 篇 center for signa...
7 篇 department of ra...
7 篇 center for wirel...
7 篇 communications i...
7 篇 remote sensing s...
7 篇 center for commu...

作者

79 篇 m.n.s. swamy
56 篇 m.o. ahmad
43 篇 y. bar-ness
35 篇 wei-ping zhu
23 篇 n. ansari
22 篇 w.-p. zhu
20 篇 m. o. ahmad
18 篇 e.s. manolakos
16 篇 e.i. plotkin
16 篇 s.h. ardalan
14 篇 a.n. akansu
14 篇 c. shahnaz
13 篇 j.k. townsend
12 篇 hongya ge
11 篇 m. omair ahmad
11 篇 swamy mns
11 篇 hsiao-chun wu
11 篇 j.g. proakis
10 篇 ansari n
10 篇 m. n. s. swamy

语言

966 篇 英文
28 篇 其他
12 篇 中文

检索条件"机构=Center for Communications and Signal Processing Electrical and Computer Engineering Department"

共 1006 条记录，以下是461-470 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：

An acoustic echo cancellation scheme using raised-cosine function for nonlinear compensation

An acoustic echo cancellation scheme using raised-cosine fun...

引用

IEEE Region 10 International Conference TENCON

作者： Hongyun Dai Wei-Ping Zhu Centre for Signal Processing and Communications Department of Electrical and Computer Engineering Concordia University Montreal QUE Canada

ISBN: (纸本)0780385608

The nonlinear distortion of an acoustic signal caused by the nonlinearity of a power amplifier and/or loudspeaker may give rise to a nonlinear component in acoustic echo cancellation systems. A conventional acoustic echo canceller (AEC) using linear adaptive filtering is not able to eliminate the nonlinear echo component to a satisfactory degree. In this paper, we present a nonlinear echo cancellation technique that uses a nonlinear transformation along with a regular linear adaptive filter for the compensation of the nonlinear echo component. A raised-cosine function is used to derive the nonlinear transformation and the parameters of the nonlinear compensator are updated to adapt to the nonlinearity of the unknown distorting path. The proposed method is simulated in conjunction with the conventional normalized least mean squared algorithm, showing a superior performance of the proposed acoustic echo canceller.

关键词： Nonlinear acoustics Echo cancellers Adaptive filters Loudspeakers Nonlinear distortion Acoustic distortion Polynomials Computational complexity signal mapping Acoustic signal processing

来源：评论

学校读者我要写书评

暂无评论

Wavelet domain image restoration using adaptively regularized constrained total least squares

Wavelet domain image restoration using adaptively regularize...

引用

International Symposium on Intelligent Multimedia, Video and Speech processing

作者： Xiaojun Zhang Wei-Ping Zhu Centre for Signal Processing and Communications Department of Electrical and Computer Engineering Concordia University Montreal QUE Canada

ISBN: (纸本)0780386876

It is know that the adaptively regularized constrained total least squares (ARCTLS) outperforms the constrained total least squares (CTLS) or the regularized CTLS in image restoration. In this paper, a wavelet domain image restoration approach, using ARCTLS is presented. The degraded image is first decomposed into subband images by using a wavelet transform. The ARCTLS algorithm is then applied to each of the subband images. The proposed restoration method is simulated and compared with the conventional RCTLS and ARCTLS techniques. It is shown that the proposed method yields a better improved signal-to-noise ratio (SNR).

关键词： Wavelet domain Image restoration Least squares methods Degradation AWGN Convolution signal processing signal processing algorithms signal restoration signal to noise ratio

来源：评论

学校读者我要写书评

暂无评论

Variable step-size adaptive channel estimation for WCDMA receiver

Variable step-size adaptive channel estimation for WCDMA rec...

引用

International Symposium on Intelligent Multimedia, Video and Speech processing

作者： Xi-Bin Han Wei-Ping Zhu Centre for Signal Processing and Communications Department of Electrical and Computer Engineering Concordia University Montreal QUE Canada

ISBN: (纸本)0780386876

An efficient channel estimation algorithm using a variable step-size adaptive filter is proposed for wideband code division multiple access (WCDMA) communication systems. The new algorithm is able to achieve a fast convergence and a low steady state error compared with a conventional constant step-size adaptive filtering method. The proposed algorithm is analyzed and simulated for multipath Rayleigh fading channels, showing the true channel response and the estimation results. The BER performance of the system is also simulated and compared with the Bhattacharyya bound.

关键词： Channel estimation Multiaccess communication Adaptive filters Wideband Filtering algorithms Convergence Steady-state Algorithm design and analysis Analytical models Fading

来源：评论

学校读者我要写书评

暂无评论

Carrier frequency offset estimation for OFDM systems with I/Q imbalance

Carrier frequency offset estimation for OFDM systems with I/...

引用

Midwest Symposium on Circuits and Systems (MWSCAS)

作者： Feng Yan Wei-Ping Zhu M. Omair Ahmad Centre for Signal Processing and Communications Department of Electrical and Computer Engineering Concordia University Montreal QUE Canada

In orthogonal frequency division multiplexing (OFDM) communication systems, there are two main types of radio frequency front-end imperfections, i.e., carrier frequency offset and in-phase/quadrature (I/Q) imbalance, which deteriorate the demodulation performance of direct conversion receiver. In this paper, a new frequency offset estimation algorithm using preambles specified in IEEE 802.11a is proposed considering the presence of I/Q imbalance. The new algorithm enjoys a low computational complexity and is less dependent on the amplitude imbalance and the angular error of the I and Q components. Simulation results show that the proposed algorithm is superior to some of the existing algorithms.

关键词： Frequency estimation OFDM Radio frequency signal processing algorithms Demodulation Receivers Wireless LAN Fading Wireless sensor networks RF signals

来源：评论

学校读者我要写书评

暂无评论

Wideband-CDMA channel estimation: a data-aided multi-slot averaging method

Wideband-CDMA channel estimation: a data-aided multi-slot av...

引用

Midwest Symposium on Circuits and Systems (MWSCAS)

作者： Xi-Bin Han Wei-Ping Zhu Centre for Signal Processing and Communications Department of Electrical and Computer Engineering Concordia University Montreal QUE Canada

ISBN: (纸本)078038346X

In this paper, a two-step channel estimation scheme is presented for downlink wideband code division multiple access (W-CDMA) communication systems. The proposed method employs the time multiplexed pilot symbols for an initial coarse estimation followed by a data-aided fine estimation in order to achieve a fast and accurate estimation of the complex channel gain. Our simulation shows that the proposed method works very well for both slow and fast fading channels. The computational complexity required by the proposed estimation is significantly reduced compared to some of the existing estimation techniques.

关键词： Channel estimation Multiaccess communication Fading Delay estimation Downlink Yield estimation Time division multiplexing Filters Frequency Wideband

来源：评论

学校读者我要写书评

暂无评论

Some new results in the design of Mth-band FIR filters

Some new results in the design of Mth-band FIR filters

引用

Midwest Symposium on Circuits and Systems (MWSCAS)

作者： Chao Wu Wei-Ping Zhu M.N.S. Swamy Centre for Signal Processing and Communications Department of Electrical and Computer Engineering Concordia University Montreal QUE Canada

In this paper, the design of Mth-band FIR filters via semidefinite programming (SDP) is investigated. Some of the frequency response properties of a general nonlinear-phase Mth-band filter are first examined, yielding a few constraints for the amplitude and phase responses of the Mth-band filter. An SDP-based optimization problem is formulated for the least-square and minimax design of Mth-band filters. Although the formulation is established for a nonlinear phase filter, the design result shows that an exactly linear phase can be obtained when the desired phase/delay characteristic is properly specified.

关键词： Finite impulse response filter Design optimization Time domain analysis Passband signal processing Nonlinear filters Design methodology IIR filters Constraint optimization Band pass filters

来源：评论

学校读者我要写书评

暂无评论

A watermark embedding scheme in wavelet transform domain

A watermark embedding scheme in wavelet transform domain

引用

IEEE Region 10 International Conference TENCON

作者： Chao Wu Wei-Ping Zhu M.N.S. Swamy Centre for Signal Processing and Communications Department of Electrical and Computer Engineering Concordia University Montreal QUE Canada

In this paper, an efficient watermark embedding scheme is presented in the wavelet transform domain. A pseudorandom sequence is weighted using a weighting function and then embedded to the wavelet transform coefficients of a host image. The proposed new weighting function consists of a perceptual mask and a reliability mask, which take into account, respectively, the imperceptibility and the robustness of the marked image. A detection algorithm based on the correlation of the watermark and the marked image is also proposed. Simulation results show that the proposed embedding algorithm is very robust against various attacks including compression, cropping and low-pass filtering.

关键词： Watermarking Wavelet domain Wavelet transforms Robustness Frequency Discrete wavelet transforms Internet Chaotic communication signal processing Embedded computing

来源：评论

学校读者我要写书评

暂无评论

Blind identification of two dimensional Volterra models using minimax type of Optimization and higher-order cumulants

Blind identification of two dimensional Volterra models usin...

引用

Conference Record of the Thirty-Eighth Asilomar Conference on signals, Systems and computers

作者： Gansawat, Duangrat Stathaki, Tania Harris, Frederic J Communications and Signal Processing Group Department of EEE Imperial College London Exhibition Road London SW7 2AZ United Kingdom Electrical and Computer Engineering San Diego State University United States

In this contribution, we farther examine our previous studies on the nonlinear texture image modelling based on Volterra series. The observed image, which is assumed to be expressed as an output of a two dimensional Volterra filter driven by a Gaussian input image, is corrupted by an independent Gaussian random noise. Both of the input image and filter parameters are unknown, and hence, the problem can be classified as blind system identification. To estimate the unknown parameters, we formulate the equations that relate the parameters of the image model with the cumulant properties of the observed output image. The solution of the formulated equations which are highly nonlinear, is achieved through minimax type of Optimization. © 2004 IEEE.

关键词： Mathematical models

来源：评论

学校读者我要写书评

暂无评论

Distributed Matlab based signal and image processing using JavaPorts

Distributed Matlab based signal and image processing using J...

引用

International Conference on Acoustics, Speech, and signal processing (ICASSP)

作者： E.S. Manolakos D.G. Galatopoullos A.P. Funk Communications and Digital Signal Processing Center for Research and Graduate Studies Electrical and Computer Engineering Department Northeastern University Boston MA USA

Many scientists and engineers have signal and image processing applications that involve large data sets and could benefit from parallel processing on readily-available clusters of workstations (COWs). Unfortunately these applications often exist as legacy code, such as Matlab functions, which are not easily parallelizable. The goal of the JavaPorts project is to provide a framework for flexible development of parallel and distributed component-based applications for heterogeneous COWs. The latest version of the package supports the integration of Java and Matlab components into the same application. The main features of the JavaPorts framework and its tools are discussed and application examples are presented which highlight its ability to support the rapid prototyping of parallel and distributed computing strategies with communicating Java and Matlab components.

关键词： signal processing Image processing Java Cows Data engineering Parallel processing Workstations Packaging Prototypes Distributed computing

来源：评论

学校读者我要写书评

暂无评论

A two-dimensional autoregressive modelling technique using a constrained optimisation formulation and the minimum hierarchical clustering scheme

A two-dimensional autoregressive modelling technique using a...

引用

Conference Record of the Thirty-Eighth Asilomar Conference on signals, Systems and computers

作者： Lee, Sarah Stathaki, Tania Harris, Frederic J. Communications and Signal Processing Group Department of EEE Imperial College London Exhibition Road London SW7 2AZ United Kingdom Electrical and Computer Engineering San Diego State University CA 92182 United States

The problem of texture characterisation is attempted using a two-dimensional (2 - D) autoregressive (AR) modelling technique. Each distinct texture is represented by a different set of 2 - D AR model coefficients. A method to estimate AR model coefficients is proposed by relating the extended Yule-Walker system of equations in the third-order statistical domain to the same system in the second-order statistical domain using a constrained optimisation formulation. This method is applied to an image with a constant texture in block-by-block process, so that a number of sets of AR model coefficients are obtained. The minimum hierarchical clustering technique and a weighting scheme are then applied to these sets of coefficients, in order to obtain the final estimation. ©2004 IEEE.

关键词： signal processing

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101页 << < 43 44 45 46 47 48 49 50 51 52 > >>

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：