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浏览/检索结果: 共9条，第1-9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 Non-cooperative UAV target recognition in low-altitude airspace based on motion model [基于运动模型的低空非合作无人机目标识别] 期刊论文 Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics, 2019, 卷号: 45, 页码: 687-694 作者:  Chen, W.;  Liu, J.;  Chen, X.;  Li, J. 收藏  |  浏览/下载：9/0  |  提交时间：2019/12/30 Aircraft detection  Airport security  Birds  Continuous time systems  Data handling  Flight dynamics  Radar  Radar measurement  Radar tracking  Surveillance radar  Targets  Time domain analysis  Unmanned aerial vehicles (UAV)  Cluttered environments  Low-altitude airspaces  Motion modeling  Recognition  Target motion models  Target recognition  Target tracking algorithm  Transformation frequency  Radar target recognition   An improved MFSK Signal detection algorithm for mars probe entry, descent, landing phase 期刊论文 Lecture Notes in Electrical Engineering, 2018, 卷号: 445, 页码: 241-250 作者:  Zhang, T.;  Zhang, X.;  Li, Z.;  Bao, J. 收藏  |  浏览/下载：5/0  |  提交时间：2019/12/30 Computational complexity  Doppler effect  Frequency shift keying  Martian surface analysis  Maximum likelihood  Maximum likelihood estimation  4-Dimensions searching  Doppler shift estimation  High dynamic  Mars science laboratory  Maximum Doppler frequency  Periodogram algorithm  Signal detection algorithm  Time domain  Signal detection   Centrifugal pump fault detection based on SWT and SVM 会议论文 Vibroengineering Procedia 作者:  Chen, Y.;  Liu, H. 收藏  |  浏览/下载：7/0  |  提交时间：2019/12/30 Centrifugal pumps  Failure analysis  Frequency domain analysis  Signal processing  Support vector machines  Time domain analysis  Vibration analysis  Wavelet transforms  Empirical mode decomposition method  Fault diagnosis method  Frequency domains  Rotating equipment  Synchrosqueezing  Time frequency analysis  Time frequency signals  Time-frequency resolution  Fault detection   Fault diagnosis of gearbox based on the nonlinear output frequency response functions and PNN 会议论文 Vibroengineering Procedia 作者:  Zhang, X.;  Wang, Z.;  Lu, C. 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/30 Condition monitoring  Failure analysis  Frequency response  Gears  Neural networks  Abnormal conditions  Complex nonlinear system  Feature extraction methods  Frequency domain approaches  Gearbox  Non-linear output frequency response function  Probabilistic neural networks  The NOFRFs  Fault detection   High resolution continuous wave terahertz spectroscopy on solid-state samples with coherent detection 期刊论文 OPTICS EXPRESS, 2018, 卷号: 26, 页码: 17964-17976 作者:  Kong, De-Yin;  Wu, Xiao-Jun;  Wang, Bo;  Gao, Yang;  Dai, Jun 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/30 Data handling  Frequency domain analysis  Mathematical transformations  Terahertz wave detectors  Terahertz waves  Time domain analysis  Atmospheric water vapor  Coherent detection  Continuous-wave terahertz  Data analysis methods  Frequency-domain signal  Hilbert transform  Terahertz frequencies  Thz spectroscopy  Terahertz spectroscopy   Cylindrical roller bearing fault diagnosis based on VMD-SVD and adaboost classifier method 会议论文 Vibroengineering Procedia 作者:  Zhang, T.;  Liu, X.;  Qin, R.;  Lu, C.;  Ma, J. 收藏  |  浏览/下载：13/0  |  提交时间：2019/12/30 Adaptive boosting  Cylindrical roller bearings  Failure analysis  Frequency domain analysis  Rollers (machine components)  Singular value decomposition  Ada boost classifiers  Fault detection and diagnosis  Fault diagnosis method  Machinery fault diagnosis  Rolling elements  Time frequency domain  Variational mode decomposition (VMD)  Vibration signal  Fault detection   A Frequency Domain-based Detection Technique for Digital Distortion on GNSS Signals 会议论文 29th International Technical Meeting of The-Satellite-Division-of-the-Institute-of-Navigation (ION GNSS+), Portland, OR, 2016-09-12 作者:  Sun, Chao;  Zhao, Hongbo;  Zhuang, Chen;  Feng, Wenquan 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/30 A Frequency Domain-based Detection Technique for Digital Distortion on GNSS Signals 会议论文 PROCEEDINGS OF THE 29TH INTERNATIONAL TECHNICAL MEETING OF THE SATELLITE DIVISION OF THE INSTITUTE OF NAVIGATION (ION GNSS+ 2016), 2016-01-01 作者:  Sun, Chao;  Zhao, Hongbo;  Zhuang, Chen;  Feng, Wenquan 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/30 Time-frequency iterative multiuser detection in time-frequency-domain spread multicarrier DS-CDMA systems over Nakagami-m fading channels 期刊论文 EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS, 2011, 卷号: 22, 页码: 13-24 作者:  Pan, P.;  Yang, L-L.;  Zhang, Y. 收藏  |  浏览/下载：1/0  |  提交时间：2020/01/06