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

219 篇 会议
29 篇 期刊文献

馆藏范围

248 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

156 篇 工学
- 70 篇 信息与通信工程
- 59 篇 电子科学与技术（可...
- 37 篇 计算机科学与技术...
- 29 篇 软件工程
- 24 篇 电气工程
- 22 篇 航空宇航科学与技...
- 21 篇 控制科学与工程
- 18 篇 机械工程
- 17 篇 材料科学与工程（可...
- 17 篇 化学工程与技术
- 12 篇 仪器科学与技术
- 10 篇 土木工程
- 8 篇 建筑学
- 7 篇 力学（可授工学、理...
- 7 篇 光学工程
- 7 篇 动力工程及工程热...
- 6 篇 冶金工程
- 6 篇 生物工程
- 5 篇 交通运输工程
- 4 篇 测绘科学与技术
84 篇 理学
- 42 篇 数学
- 34 篇 物理学
- 16 篇 化学
- 14 篇 统计学（可授理学、...
- 6 篇 生物学
- 5 篇 大气科学
- 3 篇 地球物理学
14 篇 管理学
- 10 篇 管理科学与工程(可...
- 5 篇 工商管理
- 4 篇 图书情报与档案管...
4 篇 农学
4 篇 军事学
2 篇 经济学

主题

14 篇 frequency select...
11 篇 electromagnetic ...
8 篇 simulation
7 篇 reflection
7 篇 computational el...
7 篇 convolution
7 篇 optimization
6 篇 radar cross-sect...
6 篇 computational mo...
6 篇 radar cross sect...
5 篇 stability analys...
5 篇 electromagnetics
5 篇 horn antennas
5 篇 analytical model...
5 篇 training
4 篇 jamming
4 篇 space vehicles
4 篇 frequency modula...
4 篇 interference
4 篇 plasmas

机构

78 篇 national key lab...
28 篇 national key lab...
18 篇 national key lab...
14 篇 national key lab...
12 篇 national key lab...
11 篇 beijing institut...
11 篇 college of infor...
10 篇 national key lab...
8 篇 beijing institut...
8 篇 national key lab...
7 篇 beijing institut...
6 篇 beijing universi...
5 篇 school of inform...
5 篇 beijing institut...
5 篇 school of electr...
4 篇 school of automa...
4 篇 national key lab...
4 篇 shandong institu...
4 篇 state key labora...
4 篇 northwestern pol...

作者

51 篇 liu jiaqi
51 篇 jiaqi liu
28 篇 lu gao
25 篇 gao lu
22 篇 liu xin
20 篇 xin liu
19 篇 ai xia
18 篇 zhang shengjun
16 篇 jiang zhiye
15 篇 meng gang
15 篇 xia ai
14 篇 gang meng
14 篇 shengjun zhang
13 篇 zhiye jiang
12 篇 runle du
10 篇 wu runhui
10 篇 feng xue
9 篇 zheng pei
9 篇 cui yichun
9 篇 gao jingpeng

语言

244 篇 英文
4 篇 中文

检索条件"机构=National Key Laboratory of Science and Technology on Test Physics&Numerical Mathematics"

共 248 条记录，以下是171-180 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：

Impact analysis of CFAR detection for false targets generated by the phase-switched screen

Impact analysis of CFAR detection for false targets generate...

引用

Signal, Information and Data Processing (ICSIDP), IEEE International Conference on

作者： Ran Zhang Yuan S Chen Yu X Zhang Lei Guo Liang J Bai Ping L Zhang National key laboratory of science and technology on test physics and numerical mathematics Beijing institute of Space Long March Vehicle No. 1 Nanda Hongmen Road of Fengtai District Beijing China National key laboratory of science and technology on test physics and numerical mathematics Beijing institute of Space Long March Vehicle Beijing China

ISBN: (数字)9781728123455

ISBN: (纸本)9781728123462

The phase-switched screen (PSS) has been proved effective in the application of shielding a target or deceiving the radar system when the modulation frequency of it is set greater or smaller than the signal bandwidth. This paper analyses impacts of false targets generated by PSS (PSS-decoys) echoes on radar constant false alarm rate detection. The generation principle of PSS-decoys and the key factors that influence the signatures of PSS-decoys are introduced briefly at first. On base of it, the detection cost caused by the false alarm and false dismissal in a search period of radar is chosen as the criteria of detection performance. The detection costs of CA-CFAR, OS-CFAR, CMLD-CFAR detectors under multiple decoys jamming environment are analysed. Specially, we investigate the influence of the PSS key factors on detection costs from the perspective of simulation. The results show that detection costs will increase remarkably due to false targets existing and it is sensitive to the switching frequency, and the relationship to the duty ratio is tightly relevant to SNR. Among three detectors, the detection costs of CMLD-CFAR detector are higher than that of adopting CA-CFAR and that of adopting OS-CFAR.

关键词：

来源：评论

学校读者我要写书评

暂无评论

A New One-Dimensional Photonic Crystals for Infrared Emission Modulation

A New One-Dimensional Photonic Crystals for Infrared Emissio...

引用

International Applied Computational Electromagnetics Society Symposium (ACES)

作者： Yuning Zhang Shengjun Zhang Hang Song Yichun Cui Jiaqi Liu Lihong Ai National Key Laboratory of Science & Technology on Test Physics and Numerical Mathematics Beijing China Capital Aerospace Machinery Corporation Limited Beijing China

With the wide application of infrared detection in the military field, the problem of how to reduce the probability of military targets being detected and identified has become urgent. In this paper, one-dimensional photonic crystals with wide incidence angle range are analyzed and simulated. The reflectance and transmittance properties of different structures are discussed with application in modulation of infrared emission.

关键词： Reflectivity Simulation Modulation Photonic crystals Germanium Computational electromagnetics Stability analysis

来源：评论

学校读者我要写书评

暂无评论

Study on 2D Plasma Photonic Crystals with Defect Modes Using FDTD Method

Study on 2D Plasma Photonic Crystals with Defect Modes Using...

引用

International Applied Computational Electromagnetics Society Symposium (ACES)

作者： Hang Song Yuning Zhang Jiaqi Liu Lihong Ai Shengiun Zhang National Key Laboratory of Science & Technology on Test Physics and Numerical Mathematics Beijing China Captial Aerospace Machinery Coporation Limited Beijing China

In this paper, a typical uniform unmagnetized two-dimensional plasma photonic crystal with a single linear defect mode is simulated based on the finite difference time domain method, and the effects of defect mode position and size on its photonic band gaps characteristics are explored respectively. the research can provide an idea for tuning the electromagnetic properties of two-dimensional plasma photonic crystals.

关键词： Plasma properties Time-frequency analysis Photonic band gap Two dimensional displays Plasmas Time-domain analysis Electromagnetics

来源：评论

学校读者我要写书评

暂无评论

Adaptive-Correlation Back-Projection Imaging Algorithm for Ground Penetrating Radar in Complex Scenes

Adaptive-Correlation Back-Projection Imaging Algorithm for G...

引用

2022 International Applied Computational Electromagnetics Society Symposium, ACES-China 2022

作者： Dai, Qianqi Lu, Gao Jiang, Tao Harbin Engineering University Key Laboratory of Advanced Marine Communication and Information Technology Ministry of Industry and Information Technology Harbin150001 China Beijing Institute of Space Long March Vehicle National Key Laboratory of Science and Technology on Test Physics and Umerical Mathematics Beijing100076 China

ISBN: (纸本)9781665452366

The current correlation back-projection algorithm can only deal with the imaging of objects at the same buried depth. However, for objects with different depths and different relative permittivity, the electromagnetic wave echo composition is complicated, there is no strong correlation between the time delays of the reflected echoes, the echo signal in the center of the detection area is used as a reference signal to perform consistent correlation processing, which will cause serious suppression. In this paper, an improved adaptive correlation algorithm was proposed. Firstly, the algorithm of maximum variance between clusters (OSTU) is used to extract the horizontal position and number of buried objects, and then the relevant parameters are adaptively adjusted according to the reflected energy and horizontal position of different targets. Finally, back-projection algorithm imaging is performed. Simulation experiments showed that the algorithm proposed in this paper can effectively improve the imaging effect, improve the detection probability of buried objects, and adapt to the variability of detection scenes. © 2022 IEEE.

关键词： Ground penetrating radar systems

来源：评论

学校读者我要写书评

暂无评论

Cooperative Jamming Resource Allocation Based on Artificial Bee Colony Multi-objective Decomposition

Cooperative Jamming Resource Allocation Based on Artificial ...

引用

2022 International Applied Computational Electromagnetics Society Symposium, ACES-China 2022

作者： Lu, Gao Dai, Qianqi Xia, Jiechen Beijing Institute of Space Long March Vehicle National Key Laboratory of Science and Technology on Test Physics and Umerical Mathematics Beijing100076 China Ministry of Industry and Information Technology Harbin Engineering University Key Laboratory of Advanced Marine Communication and Information Technology Harbin150001 China

ISBN: (纸本)9781665452366

Electromagnetic countermeasure plays an important role in modern warfare. Cooperative jamming is one of the main means to counter radar network. In order to improve jamming efficiency, a jamming resource allocation algorithm based on artificial bee colony multi-target decomposition is proposed in this paper. The algorithm takes into account the interference effect and cost, and uses the decomposition mechanism to improve the search efficiency. The simulation results show that the allocation solution set obtained by this algorithm has good performance in diversity and spacing. © 2022 IEEE.

关键词： Resource allocation

来源：评论

学校读者我要写书评

暂无评论

Performance Analysis of UAV Communication Network Based on Formation Network Model

Performance Analysis of UAV Communication Network Based on F...

引用

Computer Communication and Artificial Intelligence (CCAI), International Conference on

作者： Jing Cao Xiaoqin Xue Guojiang Xia Beijing Institute of Aerospace Systems Engineering Beijing China National Key Laboratory of Science and Technology on Test Physics & Numerical Mathematics Beijing China

ISBN: (数字)9798350362763

ISBN: (纸本)9798350362770

UAV formation networks are widely used in military and civilian industries due to their high flexibility and scalability, however, due to the complex space environment in which UAV formations are located, they are susceptible to different types of interference such as climate and radiation, resulting in changes in service transmission performance. Therefore, in order to evaluate the impact of interference on the performance of UAV formation network, this paper first constructs a UAV formation network model, then defines a series of index parameters to measure network performance from the perspective of network structure and network business, and conducts simulation experiments for the network spatial structure and performance of different user QoS (Quality of Service), and finally carries out theoretical analysis and simulation evaluation of the performance changes of the network before and after different types of interference. It provides a reference for the design and application of UAV formation network.

关键词： Industries Analytical models Scalability Computational modeling Interference Quality of service Autonomous aerial vehicles

来源：评论

学校读者我要写书评

暂无评论

Ballistic Target Micro-motion Parameters Identification with CNN Denoiser Based on Deep Learning

Ballistic Target Micro-motion Parameters Identification with...

引用

International Applied Computational Electromagnetics Society Symposium (ACES)

作者： Ruixin Lai Xia Ai Shaoran Wang Mengmeng Li Jiaqi Liu Dazhi Ding School of Electronics and Optical Engineering Nanjing university of science and technology Nanjing China National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing China

This paper proposes a method to identify micromotion parameters of radar echo with noise based on deep learning. The radar echo database is constructed from the point scattering model and the micro-Doppler spectrogram dataset is obtained then. The convolutional neural network is constructed to denoise radar echo with three kind of noises with different SNR, and target micro-motion parameters are identified.

关键词： Deep learning Parameter estimation Noise reduction Scattering Radar Speckle Radar scattering

来源：评论

学校读者我要写书评

暂无评论

A Novel Deceptive Jamming Method Via Frequency Diverse Array

A Novel Deceptive Jamming Method Via Frequency Diverse Array

引用

IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： Wei Mao Hui Wang Shunsheng Zhang Xiangrong Liu National Key Laboratory of Science and Technology Test Physics and Numerical Mathematics Beijing China Research Institute of Electronic Science and Technology University of Electronic Science and Technology of China Chengdu China

Different from traditional single-element and phased-array antennas, frequency diverse array (FDA) uses a slight frequency offset across the elements to produce angle-, range- and even time-dependent transmit beampattern, which provides promising potentials to develop new jamming techniques on synthetic aperture radar (SAR) imaging. In this paper, we propose a novel deception jamming method against SAR imaging, which uses FDA to quickly generate false targets. Moreover, the position of the false target is controlled by the jammer, and the number of false targets is determined by the number of FDA elements. The proposed methods are validated by extensive simulation results with range-Doppler imaging algorithm.

关键词： Jamming Synthetic aperture radar Imaging Azimuth Interference Radar imaging

来源：评论

学校读者我要写书评

暂无评论

Composite data fusion algorithm for miniature vehicles building navigation base in formation flying

Composite data fusion algorithm for miniature vehicles build...

引用

IEEE Workshop on Signal Processing Systems (SIPS)

作者： Runle Du Jiaqi Liu Zhifeng Li Zhenhong Niu Zhiye Jiang Yadong Yang National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing China (100076) China Academy of Launch Vehicle Technology Beijing China (100076)

When multiple miniature vehicles with individual position and inter-vehicle distance measurement ability collaborate in a formation, navigation base can be established by data fusion in a decentralized and standalone scheme. A Composite Data Fusion (CDF) algorithm which combines Least Square Error and Kalman Filtering is proposed in this paper to build navigation base with optimized computing stress. In CDF, Enhanced LSE is incorporated as the preprocessing stage to build a coarse estimation and handle temporary or permanent group number failure. KF stage is then built to further alleviate noises in the pre-processed estimations In CDF, the dynamic model can be much simpler than KF, so the computation load is reduced while the result still has the advantage of high precision. Simulation results show that, when the fault rate of measurement in each vehicle goes 5 thousandth, the result is still acceptable. The computation time of the proposed method is less than three percent of that of KF, while its precision is almost the same to that of KF.

关键词： Vehicles Kalman filters Navigation Mathematical model Equations Data integration

来源：评论

学校读者我要写书评

暂无评论

Dual-band checkerboard plasma electromagnetic surface for radar cross section reduction

Dual-band checkerboard plasma electromagnetic surface for ra...

引用

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

作者： Qiang Xu Zhifeng Li Jinjun Mo National University of Defense Technology Changsha China National Key Laboratory of Science and Technology on Test Physics & Numerical Mathematical Beijing China

ISBN: (纸本)9781538616093

Radar cross section (RCS) can be reduced along the principal planes by applying electromagnetic band gap (EBG) structures. Checkerboard plasma electromagnetic surface (PES), combining with EBG and plasma layer, can realize a narrow band near 3 GHz and a wide band 10-dB radar cross section reduction (RCSR) covered X-band, by redirecting the scattered fields towards four quadrants. Bistatic RCS of the checkerboard PES is simulated and the results compared to the corresponding perfect electric conductor (PEC) surface show that the maxima of the bistatic RCS pattern are reduced by 5.4 dB at fixed frequency 10 GHz.

关键词： Plasmas Periodic structures Metamaterials Electromagnetics Radar cross-sections Electromagnetic scattering

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25页 << < 14 15 16 17 18 19 20 21 22 23 > >>

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：