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

154 篇 会议
2 册 图书
2 篇 期刊文献

馆藏范围

158 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

115 篇 工学
- 82 篇 信息与通信工程
- 35 篇 计算机科学与技术...
- 34 篇 电气工程
- 27 篇 电子科学与技术（可...
- 23 篇 软件工程
- 7 篇 仪器科学与技术
- 7 篇 控制科学与工程
- 6 篇 机械工程
- 6 篇 光学工程
- 5 篇 航空宇航科学与技...
- 3 篇 生物医学工程（可授...
- 2 篇 动力工程及工程热...
- 2 篇 化学工程与技术
- 1 篇 力学（可授工学、理...
- 1 篇 材料科学与工程（可...
- 1 篇 土木工程
- 1 篇 测绘科学与技术
45 篇 理学
- 26 篇 物理学
- 20 篇 数学
- 4 篇 系统科学
- 3 篇 统计学（可授理学、...
- 2 篇 化学
- 1 篇 地理学
- 1 篇 海洋科学
- 1 篇 地球物理学
- 1 篇 生物学
26 篇 医学
- 26 篇 临床医学
3 篇 管理学
- 3 篇 管理科学与工程(可...
1 篇 法学
- 1 篇 社会学
1 篇 教育学
- 1 篇 教育学
1 篇 军事学

主题

14 篇 signal processin...
9 篇 conferences
9 篇 signal to noise ...
6 篇 delays
6 篇 signal processin...
6 篇 discrete wavelet...
6 篇 digital signal p...
4 篇 field programmab...
3 篇 simulation
3 篇 matlab
3 篇 computer archite...
3 篇 logic gates
3 篇 speech processin...
3 篇 bit error rate
3 篇 feature extracti...
3 篇 discrete fourier...
3 篇 field programmab...
3 篇 finite impulse r...
2 篇 signal detection
2 篇 support vector m...

机构

5 篇 school of inform...
4 篇 school of inform...
3 篇 shenzhen station...
3 篇 southwest instit...
3 篇 univ elect sci &...
3 篇 national key lab...
3 篇 no.208 research ...
3 篇 natl key lab bli...
3 篇 southwest inst e...
2 篇 208 res inst chi...
2 篇 electronics and ...
2 篇 srkr engineering...
2 篇 electronics and ...
2 篇 natl key lab sci...
2 篇 state radio moni...
2 篇 consciousness st...
2 篇 department of el...
2 篇 national key lab...
1 篇 univ sci & techn...
1 篇 nirma univ inst ...

作者

5 篇 cao weiping
5 篇 qun wan
3 篇 wan qun
3 篇 caiyong hao
3 篇 li mingbing
3 篇 hao caiyong
3 篇 li simin
3 篇 mingbing li
2 篇 han jian-ding
2 篇 lei yingke
2 篇 wang yongxue
2 篇 zeng jia-qi
2 篇 zhu shengqi
2 篇 li xue-feng
2 篇 k p bharath
2 篇 rajesh kumar m
2 篇 lei xiao-ben
2 篇 wu weiqiang
2 篇 liao guisheng
2 篇 peng h. f.

语言

157 篇 英文
1 篇 中文

检索条件"任意字段=2018 3rd International Conference on Communication,Image and Signal Processing（CCISP 2018）"

共 158 条记录，以下是21-30 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：

Low Altitude, Slow Speed and Small Size Object Detection Improvement in Noise Conditions Based on Mixed Training 3

Low Altitude, Slow Speed and Small Size Object Detection Imp...

引用

3rd international conference on communication, image and signal processing (ccisp)

作者： Que, J. F. Peng, H. F. Xiong, J. Y. Natl Key Lab Sci & Technol Blind Signal Proc Chengdu Peoples R China

The low altitude, slow speed and small size object which we call LSS-object for short, such as small UAV (unmanned aerial vehicles) have become a hot issue of air defense security, which is difficult to detect and identify accurately from the image. In this paper, aiming at the problem of LSS-object detection under noise environment, the detection method based on deep learning is proposed. Firstly, a standard training dataset consisting 5 classes of typical objects is constructed. Then, the standard dataset is augmented with noise of different intensity. Finally, YOLO v3 algorithm is used to form a LSS-object detection system which can adapt to environment noise. The training and detection experiments were carried out on the GPU server. After only using the noise-free dataset for training, the mAP(mean Average Precision) of the noise-free test set detection reached 81.07%, but the mAP decreased to 20.68% when the noise variance was 0.03. After adopting the mixed training strategy of the dataset with noise variance of 0.01 and noise-free data, the mAP for the test set detection with noise variance of 0.03 was increased to 70.61%, and the mAP still reached 79.85% in noise-free test set detection. The experiment results show that the mixed training strategy can greatly improve the accuracy in the noisy images detection while maintaining a higher accuracy in noise-free images.

关键词： Object detection

来源：评论

学校读者我要写书评

暂无评论

CFAR Detection of High Grazing Angle Sea-Clutter Based on KR Distribution 3

CFAR Detection of High Grazing Angle Sea-Clutter Based on KR...

引用

3rd international conference on communication, image and signal processing (ccisp)

作者： Liu, Heng-yan Song, Jie Ren, Li-qiang Sun, Shun Guo, Chen Ding, Zi-ran Xu, Cong-an Naval Aviat Univ Inst Informat Fus 188 Erma Rd Zhifu Dist Yantai Peoples R China

Constant false alarm rate (CFAR) is a traditional method for radar target detection. A lot of relevant researches assume that the sea clutter obeys the K distribution. However, with the improvement of the radar resolution and the increase of the grazing angle, the distribution of sea clutter gradually deviates from the K distribution. Although good fitting results can be obtained through the more complicated sea clutter models such as KA distribution, K+Rayleigh distribution and so on, the computational efficiency of the detection algorithm is reduced obviously. For computational complexities are mainly caused by non-closed expression, A hybrid sea-clutter distribution (KK distribution) with closed-form expression for high-resolution and high grazing angle situation is proposed, which fits the measured data. Inspired by this, a new hybrid sea-clutter distribution (KR distribution) with 4 parameters is proposed. A new method of parameter estimation for KR distribution is given, that is, passing-parameter estimation method based on hybrid distribution. The results show that the fitting effect of KR distribution is better than that of both K distribution and KK distribution in case of high resolution and large grazing angle. And the CA-CFAR based on KR distribution of passing-parameter estimation performs relatively better in the aspect of target detection.

关键词： Parameter estimation

来源：评论

学校读者我要写书评

暂无评论

Moving Target Tracking Using TDOA and FDOA Measurements from Two UAVs with Varying Baseline 3

Moving Target Tracking Using TDOA and FDOA Measurements from...

引用

3rd international conference on communication, image and signal processing (ccisp)

作者： Li, Yijun Hao, Caiyong Li, Mingbing He, Long Li, Pengjie Wan, Qun Univ Elect Sci & Technol China Sch Informat & Commun Engn Chengdu 611731 Peoples R China State Radio Monitoring Ctr Shenzhen Stn Yintan Rd 30 Dapeng Dist Shenzhen 518120 Peoples R China Southwest Inst Elect Technol Beijing Peoples R China 208 Res Inst China Ordnance Ind Beijing Peoples R China

This paper considers the problem of tracking a moving target using the time difference of arrival (TDOA) and frequency difference of arrival (FDOA) measurements obtained at two unmanned aerial vehicles (UAVs) with varying baseline. Accumulation time is necessary because the emitter position cannot be estimated at each emission when there are only two UAVs as sensors. And the target position and velocity estimation accuracy often suffer from low convergence in conventional formation flight mode no matter what nonlinear filtering algorithm is used. Based on the analysis of the influence of different flight modes on the positioning performance, a moving target tracking system from two UAVs with varying baseline is proposed. The performance of unscented Kalman filter (UKF) under proposed system is analysed and compared with the Cramer-Rao lower bound (CRLB). Simulation results show that the proposed system can speed up the convergence.

关键词： Time difference of arrival

来源：评论

学校读者我要写书评

暂无评论

Optimization of Stereo Matching in 3D Reconstruction Based on Binocular Vision 2

Optimization of Stereo Matching in 3D Reconstruction Based o...

引用

2nd international conference on communication, image and signal processing (ccisp)

作者： Gai, Qiyang Univ Elect Sci & Technol China Glasgow Coll Elect Informat Engn Chengdu 611731 Sichuan Peoples R China

Stereo matching is one of the key steps of 3D reconstruction based on binocular vision. In order to improve the convergence speed and accuracy in 3D reconstruction based on binocular vision, this paper adopts the combination method of polar constraint and ant colony algorithm. By using the line constraint to reduce the search range, an ant colony algorithm is used to optimize the stereo matching feature search function in the proposed search range. Through the establishment of the stereo matching optimization process analysis model of ant colony algorithm, the global optimization solution of stereo matching in 3D reconstruction based on binocular vision system is realized. The simulation results show that by the combining the advantage of polar constraint and ant colony algorithm, the stereo matching range of 3D reconstruction based on binocular vision is simplified, and the convergence speed and accuracy of this stereo matching process are improved.

关键词： Stereo image processing

来源：评论

学校读者我要写书评

暂无评论

A Heuristic Algorithm for Automatic Classification of Ring River 2

A Heuristic Algorithm for Automatic Classification of Ring R...

引用

2nd international conference on communication, image and signal processing (ccisp)

作者： Li, Chengming Yin, Yong Hao, Zhiwei Liu, Xiaoli Chinese Acad Surveying & Mapping 28 Lianhuachi Xi Rd Beijing Peoples R China

In map generalization, a technical difficulty and key to expressing water elements is river classification, which has high requirements for accuracy and calculation speed. In the study of river classification, the current hierarchical algorithm is not quite efficient and lacks classification of ring rivers. Based on this, this paper establishes the attributes of river classification, its geometric rules and ring rules, and classifies different ring types for the existing in river system. When calculating river's longest path, we use the heuristic algorithm for iterative calculation to automatically conduct river classification. The experimental results show that this algorithm can achieve good results for the ring river system and improve the calculation efficiency and accuracy of river system classification.

关键词： Rivers

来源：评论

学校读者我要写书评

暂无评论

Three-Component Decomposition of Polarimetric SAR Data Integrating Eigen-Decomposition Results 2

Three-Component Decomposition of Polarimetric SAR Data Integ...

引用

2nd international conference on communication, image and signal processing (ccisp)

作者： Lu, Da He, Zhihua Zhang, Huan AVIC Leihua Elect Technol Inst LiangXi Rd 796 Wuxi Peoples R China

This paper presents a novel three-component scattering power decomposition of polarimetric SAR data. There are two problems in three-component decomposition method: volume scattering component overestimation in urban areas and artificially set parameter to be a fixed value. Though volume scattering component overestimation can be partly solved by deorientation process, volume scattering still dominants some oriented urban areas. The speckle-like decomposition results introduced by artificially setting value are not conducive to further image interpretation. This paper integrates the results of eigen-decomposition to solve the aforementioned problems. Two principal eigenvectors are used to substitute the surface scattering model and the double bounce scattering model. The decomposed scattering powers are obtained using a constrained linear least-squares method. The proposed method has been verified using an ESAR PolSAR image, and the results show that the proposed method has better performance in urban area.

关键词： Least squares approximations

来源：评论

学校读者我要写书评

暂无评论

A Fast Algorithm of Direct Position Determination Using TDOA and FDOA 3

A Fast Algorithm of Direct Position Determination Using TDOA...

引用

3rd international conference on communication, image and signal processing (ccisp)

作者： Song, Yuanyuan Hao, Caiyong Li, Mingbing Wang, Xinrui Li, Junlin Wan, Qun Univ Elect Sci & Technol China Sch Informat & Commun Engn Chengdu 611731 Peoples R China State Radio Monitoring Ctr Shenzhen Stn Yintan Rd 30 Dapeng Dist Shenzhen 518120 Peoples R China Southwest Inst Elect Technol Beijing Peoples R China 208 Res Inst China Ordnance Ind Beijing Peoples R China

Weiss's Direct position determination (WDPD) method compensate the received signals of the M stations to the transmitted signals by the Delay-Doppler operator, and Delay-Doppler operator is computed M times to compensate the time delay and Doppler shift for every search point, and the dimension of the Delay-Doppler operator is related to the size of data points N. And Delay-Doppler operator is equal to four matrices multiplying continuously, whose size is NxN, and matrix multiplication needs lots of time and memory, limiting the size of N. This paper deduces the DPD that don't need to compensate to the transmitted signals. In practice, any one of M stations maybe is the reference station, and the signal of the reference station can compensate to the receiving signals of other stations by Delay-Doppler operator, and the objective function of the DPD is given. Through the DPD, Delay Doppler operator only is calculated M-1 times for every search point, and reduce the computation complexity, especially M is small. And for DPD algorithm, there are a lot of redundant computations in the Delay Doppler operator, so the fast algorithm of DPD (FDPD) is proposed. The experimental results verify that DPD reduce the computation complexity and FDPD saves the computation time and maintain the performance of the DPD algorithm simultaneously.

关键词： Time difference of arrival

来源：评论

学校读者我要写书评

暂无评论

Filtering of noise in audio/voice signal 3

Filtering of noise in audio/voice signal

引用

3rd international conference on Contemporary Computing and Informatics, IC3I 2018

作者： Thakur, Rishma Pandey, Manoj Kumar Gupta, Neeraj Amity School of Engineering and Technology Electronics and Communication Engineering Haryana India

ISBN: (纸本)9781538668948

Filter plays a vital role in electronics and communication system. Filters are used to pass the desired frequency signals and rejects undesired frequency signal. There are several applications where digital filtering techniques are used such as data communication, voice or audio filtering, video processing, image processing and many more. The basic idea behind this paper is to design different types of infinite impulse response digital filters such as Butterworth filter (BWF), Chebyshev type I filter (CSFT-1), Chebyshev type II filter (CSFT-2) and elliptic filter (EF) and to compare their performance to find out best suitable type for the filtering of voice signal, using LabVIEW simulation. © 2018 IEEE.

关键词： Impulse response

来源：评论

学校读者我要写书评

暂无评论

Journal of Physics: conference Series

Journal of Physics: Conference Series

引用

2018 3rd international conference on communication, image and signal processing, ccisp 2018

The proceedings contain 70 papers. The topics discussed include: a novel simulation system oriented description language of worm propagation;a novel micro-motion target parameter estimation algorithm in the situation of low SNR;space-time-polarization adaptive antenna arrays for GNSS receivers;an improved training sample set construction method;time-singularity power spectral distribution and its application in the analysis of radar sea clutter;extraction of disturbance signals based on the inertial sensor with a blind source separation method;a matched-filter-based coherent integration method for passive bistatic radar using frequency-agile radar as the illuminator;research on recognition of CHD heart sound using MFCC and LPCC;and ultrasonic speckle tracking with an adaptive frame interval for the measurement of blood flow velocities.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Robust Frequency Invariant Beamforming with Low Sidelobe for Speech Enhancement 2

Robust Frequency Invariant Beamforming with Low Sidelobe for...

引用

2nd international conference on communication, image and signal processing (ccisp)

作者： Zhu, Yiting Pan, Xiang Zhejiang Univ Coll Informat Sci & Elect Engn Zheda Rd 38 Hangzhou 310000 Zhejiang Peoples R China

Frequency invariant beamformers (FIBs) are widely used in speech enhancement and source localization. There are two traditional optimization methods for FIB design. The first one is convex optimization, which is simple but the frequency invariant characteristic of the beam pattern is poor with respect to frequency band of five octaves. The least squares (LS) approach using spatial response variation (SRV) constraint is another optimization method. Although, it can provide good frequency invariant property, it usually couldn't be used in speech enhancement for its lack of weight norm constraint which is related to the robustness of a beamformer. In this paper, a robust wideband beamforming method with a constant beamwidth is proposed. The frequency invariant beam pattern is achieved by resolving an optimization problem of the SRV constraint to cover speech frequency band. With the control of sidelobe level, it is available for the frequency invariant beamformer (FIB) to prevent distortion of interference from the undesirable direction. The approach is completed in time-domain by placing tapped delay lines(TDL) and finite impulse response (FIR) filter at the output of each sensor which is more convenient than the Frost processor. By invoking the weight norm constraint, the robustness of the beamformer is further improved against random errors. Experiment results show that the proposed method has a constant beamwidth and almost the same white noise gain as traditional delay-and-sum (DAS) beamformer.

关键词： Random errors

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16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：