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

91 篇 会议
4 篇 期刊文献

馆藏范围

95 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

52 篇 工学
- 33 篇 信息与通信工程
- 22 篇 电子科学与技术（可...
- 14 篇 电气工程
- 14 篇 计算机科学与技术...
- 11 篇 仪器科学与技术
- 9 篇 软件工程
- 6 篇 材料科学与工程（可...
- 6 篇 建筑学
- 6 篇 土木工程
- 5 篇 机械工程
- 5 篇 光学工程
- 5 篇 航空宇航科学与技...
- 4 篇 网络空间安全
- 3 篇 控制科学与工程
- 2 篇 力学（可授工学、理...
- 2 篇 冶金工程
- 2 篇 化学工程与技术
- 1 篇 测绘科学与技术
- 1 篇 轻工技术与工程
- 1 篇 生物医学工程（可授...
26 篇 理学
- 13 篇 数学
- 11 篇 物理学
- 5 篇 大气科学
- 4 篇 化学
- 1 篇 生物学
- 1 篇 统计学（可授理学、...
3 篇 军事学
3 篇 管理学
- 2 篇 管理科学与工程(可...
- 1 篇 工商管理
1 篇 医学
- 1 篇 临床医学

主题

10 篇 synthetic apertu...
6 篇 antenna arrays
6 篇 antenna radiatio...
6 篇 azimuth
6 篇 antenna measurem...
5 篇 microstrip anten...
5 篇 radar
5 篇 radar imaging
5 篇 phased arrays
4 篇 gain
4 篇 bandwidth
4 篇 radar antennas
3 篇 deep learning
3 篇 switches
3 篇 ultra wideband a...
3 篇 transceivers
3 篇 microstrip anten...
3 篇 estimation
3 篇 feeds
2 篇 reflector antenn...

机构

17 篇 key laboratory o...
9 篇 key laboratory o...
8 篇 key lab of apert...
6 篇 key laboratory o...
5 篇 key laboratory o...
5 篇 key lab of apert...
5 篇 east china resea...
4 篇 no. 38 research ...
4 篇 school of comput...
4 篇 the 38th researc...
3 篇 key laboratory o...
3 篇 anhui province k...
2 篇 hefei university...
2 篇 the 38th researc...
2 篇 laboratory of ap...
2 篇 key laboratory o...
2 篇 xi'an hengda mic...
2 篇 no.38 research i...
2 篇 the 38th researc...
2 篇 no.38 research i...

作者

9 篇 zhong xuelian
7 篇 cao rui
7 篇 xuelian zhong
7 篇 hu hong
6 篇 liu rengli
6 篇 zhang yan
6 篇 zhang jingjing
6 篇 tao xiaohui
5 篇 hong hu
5 篇 qinghua lai
5 篇 rengli liu
5 篇 lin xiaobin
4 篇 xiaolin zhang
4 篇 chu gao
4 篇 qi xianjun
4 篇 xiaobin lin
3 篇 xi chen
3 篇 han gao
3 篇 q. h. lai
3 篇 xianjun qi

语言

92 篇 英文
2 篇 中文
1 篇 其他

检索条件"机构=Key Laboratory of Aperture Array and Space Application-KLAASA"

共 95 条记录，以下是1-10 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 airborne P-band synthetic aperture radar system and its application in the southwest China 4

An airborne P-band synthetic aperture radar system and its a...

引用

4th International Conference on Geology, Mapping, and Remote Sensing, ICGMRS 2023

作者： Yang, Xueya Zhong, Xuelian Key Laboratory of Aperture Array and Space Application No.38 Research Institute China Electronics Technology Group Corporation HeFei China

ISBN: (纸本)9781510672741

Mapping, monitoring and parameter inversion in the mountain areas covered with dense vegetation as well as cloud and mist is always a complicated subject. Synthetic aperture radar (SAR) is an effective sensor of great potential to solve this problem. In this paper, a high resolution P-band airborne SAR system is developed, which is the first quantitative airborne P-band SAR system for business operation in China. The inherent signal ambiguity phenomenon for wide beam radar system is discussed, and the solution is suggested and validated with this radar system. Then a flight campaign is launched with this P-band SAR system in the Southwest China. The defocusing introduced by the dramatic terrain undulations is analysed detailedly. By co-registering the external digital elevation model (DEM) to the SAR image and motion compensation, the refocused quality of the polarimetric SAR images satisfies the user's requirement. After polarimetric and radiometric calibration, the polarized composite and geocoded image products are obtained for further studies. With this P-band airborne SAR system, the repeat-pass interferometric data are expected to be collected in the future for the vegetated mountainous area, and it will play more important role in the fields of topographic mapping and deformation monitoring. © 2024 COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

关键词： Synthetic aperture radar

来源：评论

学校读者我要写书评

暂无评论

Improved PRF Design Method for High-Speed Maneuvering-Platform SAR Imaging 6

Improved PRF Design Method for High-Speed Maneuvering-Platfo...

引用

6th International Conference on Electronic Engineering and Informatics, EEI 2024

作者： Zhu, Guohui Wang, Yang The 38th Research Institute of China Electronics Technology Group Corporation Key Laboratory of Aperture Array and Space Application Hefei China

ISBN: (纸本)9798350353594

When the high-speed maneuvering-platform synthetic aperture radar (SAR) is used for long-range imaging, the antenna elevation beam covers a large range of ground echoes, leading to a small PRF upper limit, while the large azimuth signal Doppler bandwidth caused by the high-speed motion of the platform results in a large PRF lower limit. This situation may cause the lower limit of the PRF to exceed the upper limit, making PRF design impossible. To tackle this problem, an improved design method of the PRF lower limit is proposed. Simulation results show that the proposed method for high-speed maneuvering SAR imaging can effectively extend the range of PRF selection and better meet the need of practical engineering applications. © 2024 IEEE.

关键词： Radar imaging

来源：评论

学校读者我要写书评

暂无评论

A MODIFIED ALTITUDE ESTIMATION METHOD FOR AIRBORNE SAR BY MULTI-CHANNEL DOPPLER SPECTRUM SHARPENING

A MODIFIED ALTITUDE ESTIMATION METHOD FOR AIRBORNE SAR BY MU...

引用

IET International Radar Conference 2023, IRC 2023

作者： Hu, Hong Huang, Fengsheng Liu, Rengli Zhong, Xuelian Key Laboratory of Aperture Array and Space Application No. 38 Research Institute China Electronics Technology Group Corporation Hefei China

ISBN: (纸本)9781839539954

A modified altitude estimation method for airborne SAR is proposed in this paper by multi-channel Doppler spectrum sharpening, to enhance both the along-track measurement resolution and the estimation robustness. A certain along-track measurement resolution is realized by Doppler sharpening, and the robustness of the estimation is improved by multi-channel clutter spectrum averaging. Simulation results show that this method has both good measurement resolution and robust estimation accuracy of the relative altitude for airborne SAR radar with both forward-looking view and down-looking view illuminations. © The Institution of Engineering & Technology 2023.

关键词： Channel estimation

来源：评论

学校读者我要写书评

暂无评论

An airborne P-band polarimetric Synthetic aperture Radar tomography campaign in hilly areas

An airborne P-band polarimetric Synthetic Aperture Radar tom...

引用

IET International Radar Conference 2023, IRC 2023

作者： Zhong, Xuelian Chen, Xi Key Laboratory of Aperture Array and Space Application No.38 Research Institute China Electronics Technology Group Corporation HeFei China

ISBN: (纸本)9781839539954

Tomographic synthetic aperture radar (SAR) has great application potential in forestry, ice and snow detecting, and urban modelling for its ability to extract vertical structure information of the target and reconstruct the illuminated area. To fulfil the requirement from forestry users, a P-band tomographic SAR campaign was carried out in Zhaoqin, Guangdong Province in 2022, by the No.38 Research Institute, China Electronics Technology Group Corporation (CETC38). In this paper, the P-band SAR system is introduced briefly, and the flight design is presented. The airborne SAR imaging algorithm for this tomographic campaign is described. Particularly, the phase errors caused by topography are compensated by introducing the digital elevation model (DEM) from shuttle radar topography mission (SRTM). To evaluate the phase accuracy for the tomographic SAR images, two of them are co-registered and generate interferogram and coherence maps. It is illustrated that the coherence is improved greatly after topography-dependent motion compensation. In the conclusion, further work is expected. © The Institution of Engineering & Technology 2023.

关键词： Timber

来源：评论

学校读者我要写书评

暂无评论

A Dielectric Constant Estimation System Based on Transmission Coefficients 4

A Dielectric Constant Estimation System Based on Transmissio...

引用

4th International Conference on Energy Engineering and Power Systems, EEPS 2024

作者： Wang, Zhigang Zhang, Jingjing Zhang, Yan Cao, Rui Tao, Xiaohui Qi, Xianjun Hefei University of Technology Anhui Province Key Laboratory of Renewable Energy Utilization and Energy Saving Hefei China Hefei No.38 Research Institute Cetc Laboratory of Aperture Array and Space Application Hefei China

ISBN: (纸本)9798350366914

In this paper, a measurement system that can measure the average permittivity of planar materials is introduced. It consists of two horn antennas placed on both sides of the object. The working frequency of the system is 28GHz, and there is direct contact between the object and the sensor during measurement. The transmission coefficient of the sensor pair is measured, and the data is then converted into the time domain, and the permittivity is estimated using the time delay. The system was tested using dielectric plates with known different dielectric properties, and the dielectric constant was accurately estimated, and the measured system was built to realize the dielectric constant estimation of unknown objects. The antennas can be replaced with multiple antenna arrays with switching matrices to improve the accuracy of dielectric constant estimation. © 2024 IEEE.

关键词： Permittivity

来源：评论

学校读者我要写书评

暂无评论

Research on Detection of Foreign Body Defects on the Surface of Basin Insulator Based on Pulsed UWB Radar 4

Research on Detection of Foreign Body Defects on the Surface...

引用

4th International Conference on Energy Engineering and Power Systems, EEPS 2024

作者： Qi, Hang Qi, Xianjun Zhang, Yan Cao, Rui Tao, Xiaohui Zhang, Jingjing Hefei University of Technology Anhui Province Key Laboratory of Renewable Energy Utilization and Energy Saving Hefei China Hefei No.38 Research Institute of Cetc Laboratory of Aperture Array and Space Application Hefei China

ISBN: (纸本)9798350366914

In order to carry out non-destructive testing on the defects of basin insulator, a detection scheme using pulsed UWB radar is proposed. The UWB system has the advantages of high transmission rate, low power consumption, strong penetration and strong anti-interference ability, and has been widely used in military, radar, medical research and other scenarios. In this paper, the radar device and the radar motion model are introduced firstly. Secondly, a moving platform is built according to the testing requirements of the basin insulator. Finally, the test data are collected and analyzed by using the motion platform. The test results show that this method can be used for non-contact and non-destructive testing of the basin insulator. © 2024 IEEE.

关键词： Radar interference

来源：评论

学校读者我要写书评

暂无评论

A ROBUST METHOD FOR ESTIMATION OF VELOCITY IN CHIRP-SUBPULSE STEPPED FREQUENCY RADAR

A ROBUST METHOD FOR ESTIMATION OF VELOCITY IN CHIRP-SUBPULSE...

引用

IET International Radar Conference 2023, IRC 2023

作者： Wang, Jinfeng Liu, Rengli Zhong, Xuelian Hu, Hong The 38th Research Institute of China Electronics Technology Group Corporation Heifei China Key Laboratory of Aperture Array and Space Application Heifei China

ISBN: (纸本)9781839539954

In ISAR imaging of chirp-subpulse stepped frequency radar, a key step is estimating the velocity, which is the determinant of wideband synthesis. In this paper, a method of two steps is proposed, that is more robust for interferences in practices. Firstly, the coarse estimation is obtained based on the fact that the profiles of target from same frequency are similar. Meanwhile, for eliminating the disturbance from jam, some estimations from different frequencies are comprehended. After correcting migration through resolution cell based on the prior estimation, some stronger cells are selected and the high resolution range profiles of each cells are achieved through IFFT(Inverse Fast Fourier Transformation). And based on these, the more precise velocity is estimated. Finally, the validity and the robustness of the method are validated through the practical radar dataset. © The Institution of Engineering & Technology 2023.

关键词： Radar imaging

来源：评论

学校读者我要写书评

暂无评论

Design and Verification of a Hybrid Multi-Beamforming system for SKA MFAA 23

Design and Verification of a Hybrid Multi-Beamforming system...

引用

23rd International Conference on Electromagnetics in Advanced applications, ICEAA 2022

作者： Cao, Rui Jiang, Lihui Li, Zhuang Tao, Xiaohui Peng, Guoliang Li, Kun Xu, Yulong Rong, Dawei Xu, Xiaorong Key Laboratory of Aperture Array and Space Application Hefei China Anhui University School of Electronic Information Engineering Hefei China

ISBN: (数字)9781665481113

ISBN: (纸本)9781665481113

A broadband hybrid muti-beamforming system applicable to SKA Mid-Frequency aperture array is presented in this paper. The hybrid beamforming system adopts a two-stage architecture that combines analog and digital beamforming. The analogue beamforming subsystem is able to provide a 16-element tile with 2~16 simultaneous beams covering ±45° spatial area and a flexible beam-selection capability by using a true-time delay and chessboard switching structure. The second-stage beamforming then produces beams in a full digital way within each input analog beam by CTPM that implements analog to digital converting, channelizer and digital beamforming. © 2022 IEEE.

关键词： Beamforming

来源：评论

学校读者我要写书评

暂无评论

Design of High-Performance Band-Notched UWB Antenna with Surrogate Models

Design of High-Performance Band-Notched UWB Antenna with Sur...

引用

IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)

作者： Yijun Du Key Lab of Aperture Array and Space Application (KLAASA) The 38th Research Institute of China Electronics Technology Group Corporation Hefei China

ISBN: (数字)9798350351019

ISBN: (纸本)9798350351026

Fragment-defined patterns etched on antenna radiator have the potential to generate band notches of sharp roll-off. By defining separate objectives for roll-off criteria (ROCs) of bands to be notched, multi-objective optimization searching of the best etch pattern can be implemented to challenge the high ROCs. To improve the searching efficiency, surrogate models are proposed in the optimization searching, and it reaches a significant promotion of computation cost. For demonstration, dual band notches of ${\mathrm {R O C}}=0.63$ at the WiMAX band and ${\mathrm {ROC}} =0.7$ at the WLAN band are achieved, and the efficiency improvement is up to 40% in the proposed design example.

关键词： Wireless LAN Costs Computational modeling Dual band WiMAX Search problems Ultra wideband antennas Computational efficiency Optimization Antenna radiation patterns

来源：评论

学校读者我要写书评

暂无评论

Design of 3 mm Frequency Band SiGe BiCMOS Power Amplifier 23

Design of 3 mm Frequency Band SiGe BiCMOS Power Amplifier

引用

23rd International Conference on Electromagnetics in Advanced applications, ICEAA 2022

作者： Zhang, Yan Xu, Yulong Li, Zhuang Cao, Rui Tao, Xiaohui Peng, Guoliang Jiang, Lihui Rong, Dawei Zhang, Jingjing Key Laboratory of Aperture Array and Space Application Hefei China Hefei University of Technology School of Electrical Engineering and Automation Hefei China

ISBN: (数字)9781665481113

ISBN: (纸本)9781665481113

This paper presents a 3mm frequency band power amplifier based on the technology of SiGe BiCMOS. A fully differential structure consisting of cascode was adopted, and transformer match was used to achieve good performance and save areas. Measured peak gain is 4.7 dB at 101 GHz, with a 3 dB bandwidth of 23 GHz from 87 GHz to 110 GHz. The input and output return losses are less than-7.4 dB and-7.6 dB, respectively. The isolation is less than-27.4 dB in the 3 dB bandwidth range. The simulated result of output 1dB compression point power is 5.1 dBm at 94 GHz. The chip size is 1.15 mm×0.7 mm (including input and output test baluns and pads), which can be applied to radar, communication, imaging and other fields. © 2022 IEEE.

关键词： Power amplifiers

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：