中国科学院机构知识库网格系统: 检索

A Noise Removal Algorithm Based on OPTICS for Photon-Counting LiDAR Data 期刊论文 OAI收割
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2021, 卷号: 18, 期号: 8, 页码: 1471-1475
作者: Zhu, Xiaoxiao; Nie, Sheng; Wang, Cheng; Xi, Xiaohuan; Wang, Jinsong

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收藏 | 浏览/下载：86/0 | 提交时间：2021/08/19

Ice, Cloud, Land Elevation Satellite-2 (ICESat-2) noise removal ordering points to identify the clustering structure (OPTICS) photon-counting Light Detection and Ranging (LiDAR) (PCL)

Single photon imaging Lidar using three Geiger-mode avalanche diodes 会议论文 OAI收割
Beijing, China, 2019-07-07
作者: Zhang, Zhenyang; Ma, Caiwen; Su, Xiuqin; Chen, Songmao; Wang, Shuchao

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收藏 | 浏览/下载：46/0 | 提交时间：2020/03/04

Lidar single-photon denoising background noise gating

Noise analysis of grating-based x-ray differential phase-contrast imaging with angular signal radiography 期刊论文 iSwitch采集
Chinese physics b, 2017, 卷号: 26, 期号: 4, 页码: 6
作者: Faiz, Wali; Bao, Yuan; Gao, Kun; Wu, Zhao; Wei, Chen-Xi

收藏 | 浏览/下载：49/0 | 提交时间：2019/04/23

Angular signal radiography Signal-to-noise ratio Photon statistical noise Mechanical error

Noise analysis of grating-based x-ray differential phase-contrast imaging with angular signal radiography 期刊论文 OAI收割
CHINESE PHYSICS B中国物理. B, 2017, 卷号: 26, 期号: 4, 页码: 40602
作者: Faiz, W; Zhu PP(朱佩平); Tian, YC; Zhu, PP; Zan, GB

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收藏 | 浏览/下载：36/0 | 提交时间：2019/08/27

angular signal radiography signal-to-noise ratio photon statistical noise mechanical error

基于超导探测器的激光测距系统作用距离分析 期刊论文 OAI收割
光学学报(Acta Optica Sinica), 2016, 卷号: 36, 期号: 3, 页码: 29-37
作者: 薛莉; 翟东升; 李语强; 张蜡宝; 李祝莲

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收藏 | 浏览/下载：23/0 | 提交时间：2017/01/12

探测器激光测距超导纳米线单光子探测器信噪比回波光子数空间碎片

Bit error rate analysis of X-ray communication system 期刊论文 OAI收割
acta physica sinica, 2015, 卷号: 64, 期号: 12
作者: Wang Lu-Qiang; Su Tong; Zhao Bao-Sheng; Sheng Li-Zhi; Liu Yong-An

收藏 | 浏览/下载：48/0 | 提交时间：2015/07/29

X-ray communication Poisson noise model bit error rate photon counting detector

Signal-to-noise ratio analysis of X-ray grating interferometry with the reverse projection extraction method 期刊论文 OAI收割
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2014, 2014, 卷号: 196, 196, 期号: SI, 页码: 75-79, 75-79
作者: Wu, Z; Wang, ZL; Gao, K; Wang, DJ; Wang, SH

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收藏 | 浏览/下载：19/0 | 提交时间：2016/04/08

Grating-based X-ray phase contrast imaging Photon statistics Mechanical errors Signal-to-noise ratio Grating-based X-ray phase contrast imaging Photon statistics Mechanical errors Signal-to-noise ratio

Accuracy analysis on centroid estimation algorithm limited by photon noise for point object 期刊论文 OAI收割
OPTICS COMMUNICATIONS, 2009, 卷号: 282, 期号: 8, 页码: 1526-1530
作者: Chen, Hongli; Rao, Changhui

收藏 | 浏览/下载：15/0 | 提交时间：2015/09/21

Centroid estimation algorithm Cramer-Rao lower bound Photon noise

The calibration of faint simulation star magnitude based on single photon count technique (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Imaging Detectors and Applications, June 17, 2009 - June 19, 2009, Beijing, China
作者: Xu S.-Y.; Guo J.; Guo J.

收藏 | 浏览/下载：32/0 | 提交时间：2013/03/25

A calibration method of faint star magnitude of the star scene simulation device is proposed in this paper. In the research of simulation star magnitude luminometers and CCD devices are the general calibration devices which are used to measure the illumination intensity and calibrate its magnitude. But if the simulation magnitude is only sixth magnitude its illumination intensity is only 1.010-8 Lux. This illumination intensity level is the lowest illumination intensity that the commercial luminometer can detect. Hence the simulation star magnitude lower than six magnitude cannot be calibrated by luminoters. Likewise CCD devices also need an additive cooler in this case. When the single photon characteristic is presented due to the low luminosity of simulating light sources the simulation star magnitude can be calibrated by detecting its photon flux of radiation with the method of single photon count. In this paper the detection principle of single photon based on a compact designed PMT detecting of the radiation level of simulation star magnitude is advanced. Especially a spectrum match method is proved theoretically to be an effective means for selecting PMT photosensitive type. In the case of the detection object of the simulation star in visible wavelength a analysis indicates that the material of tri-alkali cathode materials its best choice after being compared the Signal-to-Noise of photon detector of several PMT photosensitive materials based on the different spectrum match ratio of different object light sources and different cathode materials. An experiment is employed to show the relationship of control voltage of PMT and its dark counter the relationship of the environment temperature of PMT and its dark counter which proves its only decades of CPS at room temperature. The so low dark counter avoids a bulky cooler and is convenient for installing it on the star scene simulation equipment. Finally in the experiment of calibrating the simulation star magnitudes the ability of its calibration is confirmed to reaches up to 12m meanwhile its calibration error is within 0.2m. 2009 SPIE.

Influences of quantum noises on direct-modulated properties of 1.3-mu m ingaasp/inp laser diodes 期刊论文 iSwitch采集
Chinese physics, 2006, 卷号: 15, 期号: 9, 页码: 2125-2129
作者: Wang Jun; Ma Xiao-Yu; Bai Yi-Ming; Cao Li; Wu Da-Jin

收藏 | 浏览/下载：34/0 | 提交时间：2019/05/12

Ingaasp/inp laser diodes Carrier noise Photon noise Linear approximation method