中国科学院机构知识库网格系统: 检索

Modeling of errors resulting from vehicle motions for CHZII mobile gravimeter and its performance verification during marine surveys 期刊论文 OAI收割
APPLIED GEOPHYSICS, 2021, 页码: 8
作者: Tu Hai-Bo; He Jian-Gang; Hu Ming; Liang Xing-Hui; Liu Lei-Jun

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收藏 | 浏览/下载：41/0 | 提交时间：2021/11/30

CHZII mobile gravimeter motion-induced error from a carrier repeatability test comparison test gravity surveys

Meticulous three-dimensional demarcation and separate presentation of statistically homogeneous structural domains within a large-scale jointed rock mass 期刊论文 OAI收割
GEOSCIENCES JOURNAL, 2020, 卷号: 24, 期号: 1, 页码: 97-112
作者: Chen, Qingfa; Yin, Tingchang; Gao, Feihong; Gao, Yuan

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收藏 | 浏览/下载：12/0 | 提交时间：2021/05/25

homogeneous structural domain meticulous three-dimensional demarcation separate presentation graphical comparison test parametric comparison test

Reproducibility of R-fMRI metrics on the impact of different strategies for multiple comparison correction and sample sizes 期刊论文 OAI收割
HUMAN BRAIN MAPPING, 2018, 卷号: 39, 期号: 1, 页码: 300-318
作者: Chen, Xiao; Lu, Bin; Yan, Chao-Gan

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收藏 | 浏览/下载：66/0 | 提交时间：2018/05/28

multiple comparison correction strategies positive predictive value replicability reproducibility resting-state fMRI sample size sensitivity test-retest reliability

不同亮度条件下人眼对比敏感度函数形状研究 会议论文 OAI收割
2016年第一届北京视觉科学会议, 北京, 2016-07
作者: Fang Hou; Yukai Zhao; Luis A. Lesmes; Zhong-Lin Lu

收藏 | 浏览/下载：65/0 | 提交时间：2017/01/09

Spatial Vision Contrast sensitivity Model comparison Bayesian adaptive test quick CSF

Surface electromagnetic prospecting system (SEP) comparative test on Jinchuan nickel mine of Gansu Province 期刊论文 OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2015, 卷号: 58, 期号: 10, 页码: 3845-3854
作者:

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收藏 | 浏览/下载：17/0 | 提交时间：2017/11/27

Sself developed Surfaceelectromagnetic instrument Electromagnetic prospecting system Comparison test CSAMT

An appraisal method of dynamic interpolation error for high precision encoder (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Electronics and Optoelectronics, ICEOE 2011, July 29, 2011 - July 31, 2011, Dalian, China
作者: Wan Q.-H.; Liu C.-X.; Liu C.-X.

收藏 | 浏览/下载：19/0 | 提交时间：2013/03/25

This paper introduces an appraisal method of the dynamic interpolation error for the high precision encoder (Lissajou pattern calculation method). When the encoder is rolling two groups of fine photoelectric signals whose phase difference are /2 can be collected using data collected car. The shape and position deviation can be obtained through the comparison between Lissajou charts and the standard circle. Then dynamic interpolation error can be calculated out directly. This method is immune to the influence of encoder's speed and has no rigid demand to the test circumstances and test devices. The experimental results indicate that this method is feasible and important to the encoder's dynamic interpolation error checking. 2011 IEEE.

Random vibration analysis on the support of strapdown inertial navigation system (EI CONFERENCE) 会议论文 OAI收割
2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China
作者: Li M.

收藏 | 浏览/下载：27/0 | 提交时间：2013/03/25

Vibration of the support is an important factor to the accuracy of strapdown inertial navigation. To get vibration characteristics of the support FEM model of the support was created with Ansys and then response characteristics were analyzed on the support under the separated random loads during carrier flight including the phases of subsonic and subsonic. To validate the analysis method wide band random vibration test was done on the points of the support which are used for mounting inertial instruments. The comparison of the analysis and the test data shows that the relative error of analysis result is not more than 13%. According to the two results the support structure was improved. Finally random vibration analysis was carried out on the improved one. The result shows that the acceleration response was largely reduced than before. This research can be a reference of performance improvement of the strapdown inertial support and navigation system precision. 2011 IEEE.

The research of the accurate measure of static transfer function for the TDI CCD camera (EI CONFERENCE) 会议论文 OAI收割
3rd International Photonics and OptoElectronics Meetings, POEM 2010, November 2, 2010 - November 5, 2010, Wuhan, China
Guo-Ning L.; Long-Xu J.; Jian-Yue R.; Wen-Hua W.; Shuang-Li H.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

In the test course of static transfer function of TDI CCD camera because of the influence that gets environmental and artificial etc. factor the value of static transfer function measured at any time is between unceasing fluctuation so make accuracy reduce. To solve this problem a kind of accurate measurement technique of static transfer function is put forward. First before carrying out the measure of static quiet of transfer function the best test point of transfer function of the TDI CCD camera must be determined it is parallel to guarantee the rectangle target surface of parallel optical pipe and camera focal plane maintenance parallel and again guarantee target strip in rectangle target and TDI CCD in camera focal plane maintenance vertical. TDI CCD catches rectangle target image per 1000 lines of target mark image as a measures sample of static transfer function exclude because of atmosphere tremble twisted vague rectangle target mark image retain 500 distinct and steady target mark image as measure sample set. Then calculate the static transfer function of each measure sample respectively take the average of all static quiet transfer function in measure sample set as the static transfer function of camera. Finally the measure of the static transfer function for TDI CCD camera makes error analysis. Experimental results indicate that the value of the static transfer function of TDI CCD camera measured with this kind of method is 0.2923 with before measurement technique comparison the value of static transfer function has raised 0.02 makes the accuracy of the measure of static transfer function have gotten raising.

Combination of skip-flat test with Ritchey-Common test for the large rectangular flat (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:

收藏 | 浏览/下载：24/0 | 提交时间：2013/03/25

The Skip-Flat test and Ritchey-Common test are the well-known methods for large flat mirrors measurement. This paper describes the theories of two methods. The combination of the Skip-Flat test with Ritchey-Common test is proposed. Simulations and experiments of the combination method for testing the large rectangular flat of high aspect ratio are shown. The results of the combination test and direct measurement are presented. In comparison of the methods the combination test is in good agreement with the direct measurement. 2010 Copyright SPIE - The International Society for Optical Engineering.

Histogram comparison used in BESIIIsoftware and data validation 期刊论文 OAI收割
中国物理C, 2010, 期号: 3, 页码: 374-378
作者: Yao J(姚剑); Ji XB(季晓斌); Li DM(李德民)

收藏 | 浏览/下载：10/0 | 提交时间：2015/12/21

histogram comparison Kolmogorov test Chi2 test probability value