Institutional Repository of Optical Astronomy Research Laboratory
| 距离千米级双望远镜的空间碎片激光测距 | |
| Alternative Title | aser Ranging for Space Debris Using Double Telescopes with Kilometer-Level Distance |
龙明亮1; 张海峰1,2; 邓华荣1; 汤凯1; 张忠萍1,2; 张阿丽3
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| 2020 | |
| Source Publication | 光学学报
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| ISSN | 0253-2239 |
| Volume | 40Issue:2Pages:228002 |
| Contribution Rank | 3 |
| Abstract | 采用单台望远镜激光发射多台望远镜激光信号接收,能有效增加地面系统激光回波数,进而增强目标测量能力,可等效大口径望远镜的探测,增强小目标、远距离空间碎片的探测能力。为精确归算空间碎片至接收望远镜站点距离,需对多台望远镜测量系统中发射延时和接收时延进行精确测定,获得收发分离系统的总时延。以上海天文台收发分离的21cm/60cm口径卫星激光测距系统为例,利用高精度计时器、光电探测器等设备,对发射/接收系统延时量分别测量标定,与测量地面靶目标所得到的发射/接收系统总时延相比,延时标定误差为400ps。在此基础上,利用高精度时钟系统,并解决远距离望远镜回波信号探测距离门控制问题,国内首次实现了相距2.5公里双望远镜系统对距离大于1000公里的空间碎片目标测量,验证了远距离接收空间碎片目标激光回波信号能力。 |
| Other Abstract | In this paper, using high-precision timers, photoelectric detectors, and other equipment, the laser transmitting and receiving system delays for a 60-cm receiving telescope aperture system at the Shanghai Observatory are measured and calibrated, with a transmitting telescope aperture of 21 cm. By comparing the result of a target measurement by a space debris laser ranging (SDLR) system on the ground with the measured results of the conventional target measurement, we find that the calibration error of delay is approximately 400 ps. On this basis, using a high-precision clock system in a laser ranging system, SDLR is achieved for the first time in China using a single telescope to send laser pulses and double telescopes with a distance of 2.5 km to receive laser echoes, solving the problem of detection range gate control of echo signals from the remote telescope. This system realizes a range distance of over 1000 km. The proposed method demonstrates the ability to receive laser echoes from space debris from a remote distance on the ground with multiple telescopes. |
| Keyword | 卫星激光测距 多台望远镜接收 系统延时 距离门控 远距离探测 |
| Indexed By | EI ; CSCD ; 中文核心期刊要目总览 |
| Language | 中文 |
| CSCD ID | CSCD:6682867 |
| EI Accession Number | 20201008275869 |
| Citation statistics |
Cited Times:8[CSCD]
[CSCD Record]
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| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4031 |
| Collection | 光学天文与技术应用研究室 |
| Corresponding Author | 张海峰 |
| Affiliation | 1.中国科学院上海天文台，上海200030; 2.中国科学院空间目标与碎片观测重点实验室，江苏南京210008; 3.中国科学院新疆天文台，新疆乌鲁木齐830011 |
| Recommended Citation GB/T 7714 | 龙明亮,张海峰,邓华荣,等. 距离千米级双望远镜的空间碎片激光测距[J]. 光学学报,2020,40(2):228002. |
| APA | 龙明亮,张海峰,邓华荣,汤凯,张忠萍,&张阿丽.(2020).距离千米级双望远镜的空间碎片激光测距.光学学报,40(2),228002. |
| MLA | 龙明亮,et al."距离千米级双望远镜的空间碎片激光测距".光学学报 40.2(2020):228002. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 龙明亮-距离公里级双望远镜的空间碎片激光（2420KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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