Experimentation of Diffuse Reflection Laser Ranging of Space Debris

Yuqiang, 李语强 Li; Zhulian, 李祝莲 Li; Honglin, 伏红林 Fu; Xiangming, 郑向明 Zheng; Shaohui, 何少辉 He; Dongsheng, 翟东升 Zhai; Yaoheng, 熊耀恒 Xiong

doi:10.3788/cjl201138.0908001

Cited by 9 publications

(3 citation statements)

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“…First, the O-C residue image was compressed along the time direction, which formed an gray image of residuals distribution, and the distribution concentration of valid echo data is enhanced. Then based on the hypothesis of that the valid echo data is distributed in the pattern of piecewise linear, a weighted Hough transform is used to detect all possible line segments 8 . Finally the polynomial fitting method is used to obtain all valid echo pixels in the image, and then the real echo signals are detected.…”

Section: Introductionmentioning

confidence: 99%

New method of echo detection for diffuse reflection laser ranging

et al. 2015

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The echo received from diffuse reflection laser ranging (DRLR) system for space debris and satellite without corner reflector is too weak to detect available echo-photon robustly. A new method based on image saliency feature for echophoton detection was proposed, which used the concept of image saliency in computer vision field to describe echophoton distribution feature. The O-C residue distribution information was used to generate O-C residue image, and then saliency feature recognition, Piecewise Hough detection and polynomial fitting were adopt orderly to obtain available echo signal. The actual experiment results show the effectiveness and robustness of the algorithm.

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Section: Introductionmentioning

confidence: 99%

New method of echo detection for diffuse reflection laser ranging

et al. 2015

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“…In addition, compared with conventional laser observation, diffuse reflection laser ranging technology has a wider range of applications, and its measurement precision can reach to 50-250 cm (e.g. Greene et al 2002;Kirchner et al 2013;Li et al 2011;Zhang et al 2012), which is about 1-2 orders of magnitude better than that of other programs that use optical and radar systems. DRLR could provide high-precision observation and it is beneficial for monitoring space debris.…”

Section: Introductionmentioning

confidence: 99%

“…After upgrading the measurement system, 43 arcs were measured from 18 space targets (rocket debris and defunct satellites) in March and April, 2013. Yunnan Observatories, Chinese Academy of Sciences, also developed technology for DRLR based on the SLR system using a telescope with an aperture of 1.2 m. Laser ranging data were successfully obtained from dozens of arcs of space debris in 2010-2011 (Li et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Experiment on diffuse reflection laser ranging to space debris and data analysis

Sun

Zhang

et al. 2015

Res. Astron. Astrophys.

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Space debris has been posing a serious threat to human space activities and is needed to be measured and cataloged. As a new technology of space target surveillance, the measurement accuracy of DRLR (Diffuse Reflection Laser Ranging) is much higher than that of microwave radar and electro-optical measurement. Based on laser ranging data of space debris from DRLR system collected at SHAO (Shanghai Astronomical Observatory) in March-April 2013, the characteristics and precision of the laser ranging data are analyzed and its applications in OD (Orbit Determination) of space debris are discussed in this paper, which is implemented for the first time in China. The experiment indicates that the precision of laser ranging data can reach 39cm-228cm. When the data is sufficient enough (4 arcs of 3 days), the orbit accuracy of space debris can be up to 50m.

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