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浏览/检索结果: 共9条,第1-9条 帮助

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System Error Calibration in Large Datasets of Wireless Channel Sounding for Industrial Applications 期刊论文  OAI收割
IEEE Journal of Emerging and Selected Topics in Industrial Electronics, 2022, 卷号: 3, 期号: 1, 页码: 113-123
作者:  
Wang Q(王琪);  Candell, Richard;  Liang W(梁炜);  Pang ZB(庞智博)
  |  收藏  |  浏览/下载:32/0  |  提交时间:2022/01/27
A CSI-Based Indoor Positioning System Using Single UWB Ranging Correction 期刊论文  OAI收割
SENSORS, 2021, 卷号: 21, 期号: 19, 页码: 21
作者:  
Long, Keliu;  Kong, Darryl Franck Nsalo;  Zhang, Kun;  Tian, Chuan;  Shen, Chong
  |  收藏  |  浏览/下载:95/0  |  提交时间:2021/11/16
Development of the Multi-channel Photometric Survey Telescope 会议论文  OAI收割
California, United States, 2020-12-13
作者:  
Yuan XY(袁祥岩);  Li ZY(李正阳);  Niu DS(牛冬生);  Lu QS(陆启帅);  Jiang FH(姜方华)
  |  收藏  |  浏览/下载:42/0  |  提交时间:2021/03/30
In-vehicle localization based on multi-channel Bluetooth Low Energy received signal strength indicator 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS, 2020, 卷号: 16, 期号: 1, 页码: 13
作者:  
Gao Yuan;  Zhao Ze;  Huang Changcheng;  Han Chuanqi;  Cui Li
  |  收藏  |  浏览/下载:43/0  |  提交时间:2020/12/10
EXPERIMENTAL PERFORMANCE ANALYSIS OF THE DBF TECHNIQUE ON MICAP SCATTEROMETER DEMONSTARTOR 会议论文  OAI收割
Fort Worth, TX, JUL 23-28, 2017
作者:  
Wang, Caiyun;  Liu, Hao;  Zhang, Xiangkun;  Zhu, Di;  Zhao, Xin
  |  收藏  |  浏览/下载:15/0  |  提交时间:2018/05/04
Study on spectrograph for ionosphere: A broadband imaging instrument prototype for far-ultraviolet (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
作者:  
Wang S.-R.;  Lin G.-Y.;  Yu L.
收藏  |  浏览/下载:36/0  |  提交时间:2013/03/25
Current research on space-based exploration for the ionosphere needs more advanced technologies. Because the spectral signals in the ionosphere distributing basically in the far-ultraviolet waveband are very weak. Usual spectrometer structures and detectors such as CCD can't receive enough information. Based on this principle of atmospheric sounding  the imaging spectrometer prototype for ionosphere detection application was designed to solve the problem. This prototype consists of the telescope and the imaging spectrometer. The simple structure and small number of mirrors can help higher transmission efficiency be achieved and weak signals detection be implemented. The telescope is an off-axis parabolic mirror and the spectrometer is a modified Czerny-Turner spectral imaging system. Modified Czerny-Turner spectrometer contains a spherical mirror  a fixed plane grating and a toroidal mirror. By adjusting the incident angle to the collimating mirror and using toroidal mirror  coma and astigmatism were corrected well. We also optimize distances between the grating to the focusing mirror and the focusing mirror to the image plane to improve disadvantages of traditional Czerny-Turner structure. Designed results demonstrate that aberrations are substantially corrected  and high image quality can be obtained in broad waveband. The photon counting Wedge-Strip-Anode detector with micro-channel planes as the receiving plane is accepted for the instrument prototype. The other photon counting 2-D detector responding well for weak light such as Cross-Delay line detector and MAMA detector can also be used for detection. The calibration and performances testing system is made of a vacuum system  a deuterium lamp  a monochrometer and the instrument prototype. Results obtained from the experiment show that the spectral resolution is 2.4 nm and the spatial resolution is 80 m. The other calibration experiments are running. The technology of the spectrometer prototype is important for the research and applications of ionosphere remote sensing. 2011 SPIE.  
Non-uniformity correction in multi-CCD imaging system (EI CONFERENCE) 会议论文  OAI收割
2010 2nd International Conference on Mechanical and Electronics Engineering, ICMEE 2010, August 1, 2010 - August 3, 2010, Kyoto, Japan
Tao M.; Ren J.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
The non-uniformity phenomenon exists in each channel of multi-CCD imaging systems. The factors which lead to the problem are complex. The conventional calibrating algorithms can not consider all of these factors and have poor effects. According to the characters of multi-CCD imaging systems  a non-uniformity correction method based on the scene was proposed by adopting the traditional two-point correction theories. The correction coefficient of each channel image can be calculated via the linear relation between the two neighboring pixel lines in the two-channel images. Compared with the conventional two-point calibration and multi-point calibration methods  contrastive calibrating results were obtained. This method does not need any standard lighted image as reference source  which provides a real time way for calibrating the multi-CCD imaging systems in practical applications. 2010 IEEE.  
Radiation calibration research on multi-channel CCD camera (EI CONFERENCE) 会议论文  OAI收割
Advanced Materials and Devices for Sensing and Imaging II, November 8, 2004 - November 10, 2004, Beijing, China
作者:  
Liu J.;  Liu J.;  Liu J.;  Li J.;  Li J.
收藏  |  浏览/下载:66/0  |  提交时间:2013/03/25
Three-Line CCD Camera is a multi-channel solid mapping camera. There are three signal channels in one camera  and twelve channels in three cameras for the three-line CCD camera. Because there is a little difference between different channels  the image grey of different camera channels is a little difference for the same region. Those differences include in two aspect: the difference between the cameras each other and the difference between different channels of the same camera. So they make a mistake when the images of different channels are matched. In the paper  the camera response curves have been described through ground radiation calibration to the multi-channel camera  furthermore  the channels calibration coefficients have been gotten based on making a certain the output basis channel. So the differences between different channels are reduced through radiation calibrating each channel  and the outputs of all channels are almost same  the accuracy of matching image is improved.  
In-flight method for CBERS-02 IRMSS thermal channel absolute radiometric calibration at Lake Qinghai (China) 会议论文  OAI收割
IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium, Vols 1-8, Proceedings, New York
Zhang, Y; Gu, X; Yu, T; Li, XY; Li, XW
收藏  |  浏览/下载:22/0  |  提交时间:2014/12/07