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Home > Archive>Volume 43, Issue 5, 2024 >696-702. DOI:10.11972/j.issn.1001-9014.2024.05.013
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A study of watt-scale picosecond laser space target ranging for a 1.2 m telescope at high altitude
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Affiliation:

1.Shanghai Astronomical Observatory， Chinese Academy of Sciences， Shanghai 200030， China;2.Center For Advanced Laser Technology， Hebei University of Technology， Tianjin 300401， China;3.Key Laboratory of Space Object and Debris Observation， China Academy of Sciences， Nanjing 210008， China;4.Zijinshan Observatory， Chinese Academy of Sciences， Nanjing 210008，China;5.Qinghai Observatory， Zijinshan Observatory， Chinese Academy of Sciences， Delingha817000， China

Clc Number:

TN206

Fund Project:

Supported by the National Natural Science Foundation of China （12003056） ； Civil Space Technology Advance Research Project of the Bureau of Science and Industry Foundation of China （D010105）

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    Abstract:

    High-precision space debris measurements can provide more accurate real-time information on debris targets and enhance the effectiveness of satellite avoidance warnings for space debris. Through the modification of the 1.2 m aperture quantum communication telescope （altitude 3200 m） in Qinghai Province， the satellite laser ranging （SLR） and space debris laser ranging （DLR） experiments were carried out by using a single pulse energy of 1.2 mJ and a repetition rate of 1 kHz picosecond laser， in which the detection range of cooperative satellites has been extended from Low Earth Orbit to Geosynchronous Eearth Orbit， and the ranging accuracy was better than 2 cm. The maximum distance of space debris target measurement is 1620.5 km， the radar cross section （RCS） is 2.41 m2， and the ranging accuracy reaches 10.64 cm.A single laser system has been realized， which can not only carry out centimeter-level high-precision ranging of cooperative targets， but also realize space debris observation. This is the first time in the world to use high repetition frequency and low power laser ranging system to achieve high precision measurement of space debris targets， reflecting the advantages of picosecond laser and high-altitude large-aperture telescope measurement， providing reference for developing space target laser ranging in western China， and providing an effective way for space debris laser ranging system site selection and space debris monitoring capability enhancement.

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YANG Yu, LONG Ming-Liang, ZHANG Hai-Feng, ZHANG Xiao-Xiang, HUANG Xing-Min, DING Jie, LI Pu, DENG Hua-Rong, ZHANG Zhong-Ping. A study of watt-scale picosecond laser space target ranging for a 1.2 m telescope at high altitude[J]. Journal of Infrared and Millimeter Waves,2024,43(5):696~702

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History
  • Received:November 16,2023
  • Revised:August 03,2024
  • Adopted:January 09,2024
  • Online: August 02,2024
  • Published: October 25,2024
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