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浏览/检索结果: 共8条，第1-8条 帮助 限定条件 专题：北京航空航天大学    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 MULTIPLE-USER TRANSMISSION IN SPACE INFORMATION NETWORKS: ARCHITECTURE AND KEY TECHNIQUES 期刊论文 IEEE WIRELESS COMMUNICATIONS, 2019, 卷号: 26, 页码: 17-23 作者:  Zhang, Xuejun;  Zhu, Lina;  Li, Tian;  Xia, Yongxiang;  Zhuang, Weihua 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/30 Antennas  Heterogeneous networks  Information services  Network architecture  Signal processing  Space platforms  Communication framework  Cooperative transmission  Functional nodes  High altitude airships  Information acquisitions  Multiple antenna systems  Space information network  Transmission methods  Data communication systems   A Novel SDMA Uplink Method Based on Time-Modulated Array for UAV Communications 会议论文 2018 IEEE International Conference on Communication Systems, ICCS 2018, 2018-12-19 作者:  Chen, Q.;  He, C.;  Bai, L.;  Zhang, X. 收藏  |  浏览/下载：11/0  |  提交时间：2019/12/30 Antenna arrays  Bandpass filters  Multibeam antennas  Unmanned aerial vehicles (UAV)  Vehicle to vehicle communications  Airborne antenna  Carrier frequency  Multiple beam  Numeric simulation  Single rf chains  Space-division multiple-access (SDMA)  Time modulated arrays  Wireless communications  Space division multiple access   Modeling and intensity analysis of GNSS signal link for high-orbit spacecraft [高轨航天器GNSS信号传播链路建模与强度分析] 期刊论文 Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics, 2018, 卷号: 44, 页码: 1496-1503 作者:  Chai, J.;  Wang, X.;  Yu, N.;  Wang, D.;  Li, Q. 收藏  |  浏览/下载：8/0  |  提交时间：2019/12/30 Antennas  Availability  Communication satellites  Orbits  Satellites  Sensitivity analysis  Signal analysis  Signal receivers  Space flight  Engineering applications  Global Navigation Satellite Systems  High-orbit spacecraft  Intensity distribution  Link characteristics  Link model  Signal intensity distribution  Transmitting antenna  Global positioning system   Two Dimensional Image Formation of Interrupted FMCW SAR Through Spectral Analysis 会议论文 2018 China International SAR Symposium, CISS 2018 - Proceedings 作者:  Ahmed, N.;  Sun, B.;  Chen, J. 收藏  |  浏览/下载：7/0  |  提交时间：2019/12/30 Antennas  Computerized tomography  Frequency modulation  Image analysis  Image processing  Radar imaging  Space-based radar  Spectrum analysis  All-pole modeling  Frequency-modulated continuous waves  interrupted-FMCW  Single antenna  Space-borne SAR  Spaceborne synthetic aperture radars  Spectral analysis method  Two dimensional images  Synthetic aperture radar   Performance Analysis for SDMA mmWave Systems: Using an Approximate Closed-Form Solution of Downlink Sum-Rate 期刊论文 IEEE ACCESS, 2017, 卷号: 5, 页码: 15641-15649 作者:  Bai, Lin;  Li, Tian;  Xiao, Zhenyu;  Choi, Jinho 收藏  |  浏览/下载：8/0  |  提交时间：2019/12/30 Space division multiple access (SDMA)  millimeter wave (mmWave)  antenna arrays  performance analysis  binary random variable   Synthesis of conformal array antenna for hypersonic platform SAR using modified particle swarm optimisation 期刊论文 IET RADAR SONAR AND NAVIGATION, 2017, 卷号: 11, 页码: 1235-1242 作者:  Zhou, Rui;  Sun, Jinping;  Wei, Shaoming;  Wang, Jun 收藏  |  浏览/下载：4/0  |  提交时间：2019/12/30 conformal antennas  antenna arrays  synthetic aperture radar  particle swarm optimisation  conformal array antenna synthesis  hypersonic platform SAR  synthetic aperture radar system  airborne SAR  complex aerodynamic configuration  flight characteristics  radar design  conformal design requirements  space coordinate system  far-field radiation  antenna mask templates  modified meta particle swarm optimisation algorithm  optimal excitation phase  array element  ultimate antenna pattern   Thermal-structural analysis of large deployable space antenna under extreme heat loads 期刊论文 JOURNAL OF THERMAL STRESSES, 2016, 卷号: 39, 页码: 887-905 作者:  Guo, Wei;  Li, Yunhua;  Li, Yun-Ze;  Tian, Shaoping;  Wang, Shengnan 收藏  |  浏览/下载：1/0  |  提交时间：2019/12/30 Extreme thermal environment  finite element analysis  large deployable space antenna  reliability and safety  thermal stresses and deformations   Mutual Coupling Reduction between Very Closely Spaced Microstrip Antennas Using CPW Structure 会议论文 2016 INTERNATIONAL CONFERENCE ON MEASUREMENT INSTRUMENTATION AND ELECTRONICS (ICMIE 2016), 2016-01-01 作者:  Ma, Xiao-zun;  Zhao, Ming-yang;  Zhang, De-feng;  Liu, Peng-jun 收藏  |  浏览/下载：14/0  |  提交时间：2019/12/30 Antenna arrays  Coplanar waveguides  Directional patterns (antenna)  Broadside arrays  Coplanar wave-guide (CPW)  Free-space wavelengths  H-planes  Mutual coupling  Mutual coupling reductions  Microstrip antennas