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浏览/检索结果: 共15条，第1-10条 帮助

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Modulated optical signal detection based on cross-correlation algorithm 会议论文  OAI收割
Beijing, China, 2021-06-20
作者:  Zeng, Ke;  Han, Junfeng;  Wang, Haitao;  Wang, Chen;  Xie, Xiaoping
  |  收藏  |  浏览/下载：23/0  |  提交时间：2022/01/30
Feed-forward timing estimation for burst signals in non-cooperative communication 期刊论文  OAI收割
IET COMMUNICATIONS, 2020, 卷号: 14, 期号: 17, 页码: 2871-2877
作者:  Li, Youyang;  Qin, Fei;  Wang, Xue;  Lu, Xiaochun;  Chu, Ziyue
  |  收藏  |  浏览/下载：43/0  |  提交时间：2021/11/29
Dim small target detection based on high-order cumulant of motion estimation 期刊论文  OAI收割
Infrared Physics and Technology, 2019, 卷号: 99, 页码: 86-101
作者:  Fan, Xiangsuo;  Xu, Zhiyong;  Zhang, Jianlin;  Huang, Yongmei;  Peng, Zhenming
  |  收藏  |  浏览/下载：32/0  |  提交时间：2021/05/06
A Method to Search Special Stellar Spectra from Low Signal-to-Noise Ratio Spectral Sky Survey Data 期刊论文  OAI收割
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 卷号: 39, 期号: 2, 页码: 618-621
作者:  Wu Ming-lei;  Pan Jing-chang;  Yi Zhen-ping;  Wei Peng
  |  收藏  |  浏览/下载：4/0  |  提交时间：2020/03/10
On-Orbit Signal-to-Noise Ratio Test Method for Night-Light Camera in Luojia 1-01 Satellite Based on Time-Sequence Imagery 期刊论文  OAI收割
Sensors, 2019, 卷号: 19, 期号: 19, 页码: 18
作者:  W.Wang;  X.Zhong;  Z.Q.Su
  |  收藏  |  浏览/下载：33/0  |  提交时间：2020/08/24
A Processing Method for Low SNR Repetitive Observation Spectrum 期刊论文  OAI收割
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 卷号: 38, 期号: 7, 页码: 2311-2314
作者:  Liu Yuan-yuan;  Chen Jian-jun;  Qiu Bo;  Fan Xiao-dong;  Wei Shi-ya
  |  收藏  |  浏览/下载：15/0  |  提交时间：2020/03/10
A Multiple-Input Nyquist Folding Receiver Architecture for Low SNR Wideband Spectrum Sensing 会议论文  OAI收割
2017 17th IEEE International Conference on Communication Technology (ICCT 2017), Chengdu, China, October 27-30, 2017
作者:  Gong TR(宫铁瑞);  Wang GS(王庚善);  Duan MQ(段茂强);  Yang ZJ(杨志家)
  |  收藏  |  浏览/下载：28/0  |  提交时间：2017/12/21
Multiple dim targets detection in infrared image sequences 会议论文  OAI收割
International Symposium on Optoelectronic Technology and Application 2014, Beijing, China, May 13-15, 2014
作者:  Ma TL(马天磊);  Shi ZL(史泽林);  Yin J(尹健);  Xu BS(徐保树)
收藏  |  浏览/下载：34/0  |  提交时间：2014/12/29
Improved TOPS about direction of arrival estimation for wideband signals (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Vibration, Structural Engineering and Measurement, ICVSEM2011, October 21, 2011 - October 23, 2011, Shanghai, China
作者:  He B.
收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25
The study about the direction-of-arrival (DOA) estimation for wideband signals is a basic topic of Signal Processing. The method called test of orthogonality of projected subspaces (TOPS) does not require initial values to form focusing matrix compared with the coherent signal subspace method (CSSM)  but it has poor performance for coherent wideband signals at low signal-to-noise ratio (SNR). Based on the lack of the conventional TOPS  this paper reconstructs a set of new matrices with the narrowband correlated matrices coming from the DFT decomposition of the array output and modifies the method frame of the conventional TOPS. So we get a set of reconstructed matrices with full rank corresponding to each frequency bin  and which have no array aperture loss. The improved TOPS can estimate the DOA for coherent wideband sources at low SNR  and enhances the performance of the conventional TOPS. Simulation results show that the improved TOPS is effective  and the total performance of which is similar to the rotational signal-subspace (RSS) method. (2012) Trans Tech Publications.  
Robust Line Segment Detection Based on Non-isotropy in Low-SNR Image 会议论文  OAI收割
2012 IET International Conference on Information Science and Control Engineering (ICISCE 2012), Shenzhen, China., December 7-9, 2012
作者:  Ai R(艾锐);  Shi ZL(史泽林)
收藏  |  浏览/下载：28/0  |  提交时间：2012/12/28