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

48 篇 期刊文献
30 册 图书
10 篇 会议
3 篇 学位论文

馆藏范围

91 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

57 篇 工学
- 50 篇 电气工程
- 26 篇 信息与通信工程
- 26 篇 计算机科学与技术...
- 15 篇 电子科学与技术（可...
- 2 篇 交通运输工程
- 2 篇 软件工程
- 1 篇 仪器科学与技术
- 1 篇 航空宇航科学与技...
15 篇 理学
- 9 篇 数学
- 6 篇 物理学
1 篇 文学
1 篇 医学
- 1 篇 临床医学
1 篇 管理学
- 1 篇 管理科学与工程(可...

主题

91 篇 trellis coding
30 篇 nasa technical r...
30 篇 (ntrs)
13 篇 modulation
12 篇 decoding
12 篇 viterbi decoders
10 篇 algorithms
9 篇 bit error rate
8 篇 satellite commun...
8 篇 phase shift keyi...
7 篇 signal fading
7 篇 codes
7 篇 computerized sim...
7 篇 reports
7 篇 mobile communica...
6 篇 lin, shu
6 篇 channels (data t...
6 篇 coded modulation
6 篇 signal processin...
5 篇 concatenated cod...

机构

3 篇 kitami inst tech...
2 篇 chinese acad sci...
2 篇 lund univ dept i...
2 篇 univ chinese aca...
2 篇 univ edinburgh i...
2 篇 ohio univ russ c...
2 篇 virginia tech | ...
2 篇 univ teheran fac...
2 篇 usaf res lab ifg...
2 篇 univ wisconsin d...
1 篇 queens univ dept...
1 篇 cirrus log inc b...
1 篇 gautam buddha un...
1 篇 department of in...
1 篇 princeton univ d...
1 篇 simages inc.
1 篇 france telecom d...
1 篇 washington state...
1 篇 texas a&m univ d...
1 篇 motorola codex m...

作者

5 篇 sakai t
4 篇 ogiwara h
3 篇 fischer tr
3 篇 calderbank ar
3 篇 shibata k
2 篇 pottie gj
2 篇 lindsey ar
2 篇 song xy
2 篇 cao yun
2 篇 marcellin mw
2 篇 eriksson tomas
2 篇 karami e
2 篇 anderson jb
2 篇 dill j
2 篇 anderson john b.
2 篇 nuri v
2 篇 wang yu
2 篇 ucan on
2 篇 khansari m
2 篇 zhao xianfeng

语言

85 篇 英文
5 篇 其他
1 篇 土耳其文

检索条件"主题词=trellis coding"

共 91 条记录，以下是51-60 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：

On the BCJR algorithm for rate-distortion source coding

On the BCJR algorithm for rate-distortion source coding

引用

IEEE International Symposium on Information Theory and Its Applications

作者： Anderson, John B. Eriksson, Tomas Goertz, Norbert Lund Univ Dept Informat Technol SE-22100 Lund Sweden Univ Edinburgh Inst Digital Commun Joint Res Inst Signal & Image Proc Edinburgh EH9 3JL Midlothian Scotland

ISBN: (纸本)0780391519

The Bahl-Cocke-Jelinek-Raviv (BCJR) algorithm is an important channel decoding method. We extend it to trellis rate-distortion data compression. Beginning from source coding principles, the derivation of the algorithm avoids channel coding or soft output ideas. The encoder does not use entropy coding;equiprobable reproducer letters are emphasized since these maximize entropy. The BCJR method is demonstrated by tests of a tail-biting variant. It performs much better than the ordinary Viterbi algorithm for short and medium blocks. However, the improvement stems from tail biting;the role of the BCJR is to achieve tail biting in a relatively simple way. Some issues that arise with tail biting are explored. It is shown that there is an optimal trellis state size for each block length.

关键词： data compression rate-distortion theory tail biting trellis coding

来源：评论

学校读者我要写书评

暂无评论

An efficient MIMO receiver structure for coded signals

An efficient MIMO receiver structure for coded signals

引用

57th IEEE Vehicular Technology Conference

作者： Karami, E Shiva, M Khansari, M Univ Teheran Fac Engn Dept Elect & Comp Engn Tehran 14399 Iran

In this paper a new MIMO detector is proposed and its performance for 4/8PSK trellis coded signals is evaluated. As it is concluded from various simulations, this algorithm is not only efficient for coded signals but ... 详细信息

ISBN: (纸本)0780377575

关键词： MIMO iterative detection joint detection channel estimation Minimum Mean Square Error (MMSE) trellis coding space-time coding

来源：评论

学校读者我要写书评

暂无评论

Performance analysis and comparison of trellis coded STTD and TSTD schemes for CDMA system

Performance analysis and comparison of trellis coded STTD an...

引用

IEEE Region 10 Conference (TENCON 2005)

作者： Thirukkumaran, S. Pang, K. K. Monash Univ Ctr Telecommun & Informat Engn Dept ECSE Melbourne Vic 3168 Australia

ISBN: (纸本)9780780393110

The aim of this paper is to analyze and compare the performance of trellis coded Space Time Transmit Diversity (STTD) scheme and trellis coded Time Switched Transmit Diversity (TSTD) scheme for CDMA system. In the first part of the paper we will derive an upper bound for the Frame Error Rate (FER) of both the schemes. We then use the expressions for the upper bound to present the design of trellis codes that are optimum in terms of FER. In the second part of the paper we provide numerical results that validate the design. We conclude with a comparison of both schemes under different channel conditions and multi-user interference.

关键词： Space Time Transmit Diversity Time Switched Transmit Diversity trellis coding MIMO CDMA

来源：评论

学校读者我要写书评

暂无评论

Optimal bit allocation for high quality wavelet color image codec 19

Optimal bit allocation for high quality wavelet color image ...

引用

Conference on Applications of Digital Image Processing XIX

作者： Nuri, V Nuri, I Simages Inc. (United States) Univ. of California/Berkeley (United States)

ISBN: (纸本)0819422355

In this paper, a high quality, and in many prospects, efficient, wavelet color image codec (WCIC) is introduced. This codec allows to achieve high compression ratios with little degradation in visual quality. WCIC simultaneously exploits several characteristics of the wavelet transforms (multiresolution decompositions). Wavelet transform is formed using wavelet packets via lattice structures. Bit allocation algorithm is developed to distribute the bits between and in the colors such that minimal mean-squared-error (MSE) is introduced in each color component. This proves to be beneficial at low bit rates which keeps the color distribution in balance. The wavelet coefficients are quantized using either trellis or zero-tree quantizers depending on their statistics. Quantized coefficients are further compressed with adaptive arithmetic coding resulting in the final coded bit stream. This codec is applied to a wide range of images, from computer animations to natural pictures. The results are compared to other algorithms, including fractals and JPEG, and relative merits of the proposed algorithm are presented.

关键词： color image compression wavelets bit allocation trellis coding tree coding

来源：评论

学校读者我要写书评

暂无评论

A study on importance sampling for turbo codes

A study on importance sampling for turbo codes

引用

26th Symposium on Information Theory and Its Applications (SITA2003)

作者： Sakai, T Shibata, K Kitami Inst Technol Dept Comp Sci Kitami Hokkaido 0908507 Japan

Parallel concatenated convolutional codes, turbo codes [1], are very attractive scheme at a point of view of an error probability performance. An bit error rate (BER) evaluation for turbo codes is done by a uniform interleaver bound calculation [2] and/or a computer simulation. The former is calculated under the assumption of uniform interleaver, and is only effective for an BER evaluation with a pseudo random interleaver. The latter dose not have any interleaver restrictions. However, for a very low BER evaluation, it takes enormous simulation time. In this paper, a new error probability evaluation method for turbo codes is proposed. It is based on the error event simulation method [3]. For each evaluation for the predetermined error sequence, importance sampling, which is one of the fast simulation methods, is applied. To prove the effectiveness of the proposed method, numerical examples are shown. The proposed method well approximates the BER at the error floor region. Under the same accuracy, the IS estimation time at BER = 10(-7) is reduced to 1/(6358) of the ordinary Monte-Carlo simulation time.

关键词： importance sampling Monte-Carlo simulation turbo codes trellis coding error event simulation

来源：评论

学校读者我要写书评

暂无评论

Power Efficiency Analysis of Advanced Modulation Format 3

Power Efficiency Analysis of Advanced Modulation Format

引用

3rd International Conference on Computing for Sustainable Global Development (INDIACom)

作者： Sharma, Sandeep Vishwakarma, Luxmi Kant Gautam Buddha Univ Sch Informat & Commun Technol Greater Noida India

ISBN: (纸本)9789380544199

In this paper we have analyze power efficiency of advanced modulation formats over Additive White Gaussian Noise (AWGN) channel. The advanced modulation formats are polarization division multiplexing quadrature phase shift keying (PDM-QPSK), polarization switched quadrature phase shift keying (PS-QPSK) and six polarization quadrature phase shift keying (6P-QPSK) and these modulation formats are investigated with forward error correction channel coding like Turbo coding and trellis Coded Modulation channel coding schemes.

关键词： Turbo coding Power Efficiency trellis coding Polarization Division Multiplexing Polarization Switcing

来源：评论

学校读者我要写书评

暂无评论

Bounds on the minimum distance of high dimensional circular trellis-coded modulation

Bounds on the minimum distance of high dimensional circular ...

引用

Defence Applications of Signal Processing Workshop

作者： Song, XY Dill, J Lindsey, AR Ohio Univ Russ Coll Engn & Technol Sch Elect & Comp Engn Athens OH 45701 USA USAF Res Lab IFGC Rome NY USA

This paper derives the upper and lower bounds on the minimum distance of 4-ary circular trellis-coded modulation using a simplex signal constellation. The bounds are shown to be tight and reachable, and the code is shown to achieve simplex distance between parallel paths at each stage of the trellis. (C) 2002 Elsevier Science (USA).

关键词： trellis coding coded modulation

来源：评论

学校读者我要写书评

暂无评论

An efficient MIMO receiver structure for coded signals 8

An efficient MIMO receiver structure for coded signals

引用

8th International Conference on Communication Systems

作者： Karami, E Shiva, M Khansari, M Univ Teheran Fac Engn Dept Elect & Comp Engn Tehran 14399 Iran

ISBN: (纸本)0780375106

In this paper, a new near optimum receiver for linear MIMO channels is proposed. The main structure of this receiver is based on estimation of spatial signature matrix and soft joint detection of received signal. In proposed joint detector, by some modification on feedback structure of iterative joint detectors, the probability of convergence to local minima is decreased. From various simulations, it has been shown that the receiver is efficient for trellis MPSK coded signals. The computational complexity of channel estimator and soft joint detector has linear relationship with number of transmitter and receiver antennas and tracking speed of channel estimator is relatively enough. Therefore proposed receiver can be used in high bit rate wireless communication services.

关键词： joint detection MIMO channels channel throughput transmitter diversity receiver diversity channel estimation trellis coding soft detection

来源：评论

学校读者我要写书评

暂无评论

Implementation of multi-frequency modulation with trellis encoding and Viterbi decoding using a digital signal processing board

Implementation of multi-frequency modulation with trellis en...

引用

作者： Wisniewski, John W. NAVAL POSTGRADUATE SCHOOL

学位级别：硕士

Multi-Frequency Modulation has been the topic of several papers at NPS. In past systems the majority of time required for the generation of the MFM signal was due to the software routine used to implement the FFT. Xn this report a Digital Signal Processor was used to reduce the time needed to generate the FFT. The use of trellis coding and Viterbi decoding on a Digital Signal Processor was also investigated. Assembly language programs for three encoder/decoder systems were developed. The first uses a 16 QAM signal, the second uses a 2/3 rate convolutional encoder and Viterbi decoder and the third uses the V.32 convolutional encoder and a Viterbi decoder.

关键词： Communication Multi-Freuency Modulation trellis coding Viterbi aecodlng

来源：评论

学校读者我要写书评

暂无评论

NASA Technical Reports Server (Ntrs) 19920005017: Flexible Digital Modulation and coding Synthesis for Satellite Communications

引用

2017年

NASA Technical Reports Server (Ntrs) 19920005017: Flexible Digital Modulation and coding Synthesis for Satellite Communications by NASA Technical Reports Server (Ntrs); published by

关键词： (ntrs) 19920005017: budinger, james coding communications digital digital systems frequency division multiple access hoerig, craig modems nasa technical reports server (ntrs) phase shift keying prototypes quadrature amplitude modulation quadrature phase shift keying satellite communication tague, john time division multiplexing transmitters trellis coding vanderaar, mark

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10页 << < 1 2 3 4 5 6 7 8 9 10 > >>

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：