In this paper,an effective active vibration control method was investigated to further improve the positioning accuracy of the Five-hundred-meter Aperture Spherical radio Telescope(FAST)feed cabin.The actual operation...
supported by the National Natural Science Foundation of China(NSFC)under grant No.42304044;the Natural Science Foundation of Henan,China under grant No.222300420385。
High-precision polar motion prediction is of great significance for deep space exploration and satellite navigation.Polar motion is affected by a variety of excitation factors,and nonlinear prediction methods are more...
research project "Study on the Category of Rhapsodies"(21FZWB101)funded by the National Social Science Fund of China;Anhui Provincial Social Science Planning Project "The Discussion Tradition of Pre-Tang Poetry"(AHSKHQ2020D09).
The composition of group poems based on evocation with miscellaneous themes(za-xing)first emerged in the Tang Dynasty,pioneered by Du Fu and Chu Guangxi,but an extraordinary outburst of group poems based on evocation ...
supported by the National Key R&D Program of China Nos.2021YFC2203502 and 2022YFF0711502;the National Natural Science Foundation of China(NSFC)(12173077);the Tianshan Talent Project of Xinjiang Uygur Autonomous Region(2022TSYCCX0095 and2023TSYCCX0112);the Scientific Instrument Developing Project of the Chinese Academy of Sciences,grant No.PTYQ2022YZZD01;China National Astronomical Data Center(NADC);the Operation,Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments,budgeted from the Ministry of Finance of China(MOF)and administrated by the Chinese Academy of Sciences(CAS);Natural Science Foundation of Xinjiang Uygur Autonomous Region(2022D01A360)。
For real-time processing of ultra-wide bandwidth low-frequency pulsar baseband data,we designed and implemented an ultra-wide bandwidth low-frequency pulsar data processing pipeline(UWLPIPE)based on the shared ringbuf...
supported by the National Natural Science Foundation of China(NSFC,Grant Nos.12273077,72101068,12373110,and 12103070);National Key Research and Development Program of China under grants(2022YFF0712400,2022YFF0711500);the 14th Five-year Informatization Plan of Chinese Academy of Sciences(CAS-WX2021SF-0204);supported by Astronomical Big Data Joint Research Center;co-founded by National Astronomical Observatories,Chinese Academy of Sciences and Alibaba Cloud。
Astronomical knowledge entities,such as celestial object identifiers,are crucial for literature retrieval and knowledge graph construction,and other research and applications in the field of astronomy.Traditional meth...
The Submillimeter Wave Astronomy Satellite(SWAS)was the first space telescope capable of high spectral resolution observations of terahertz spectral lines.We have investigated the integration ability of its two receiv...
supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(grant No.XDB0550400);the Key Research Program of Frontier Sciences(grant No.ZDBS-LY-7014)of Chinese Academy of Sciences;the National Natural Science Foundation of China(NSFC,Grant Nos.12373053 and 12321003);the Natural Science Foundation of Jiangsu Province(grant No.BK20221562)。
The occurrence of the first significant digits from real world sources is usually not equally distributed,but is consistent with a logarithmic distribution instead,known as Benford’s law.In this work,we perform a com...
supported by the Shanghai Science and Technology Innovation Action Plan(grant No.21511104100);the Global Common Challenge Special Project(grant No.018GJHZ2023110GC);the China National Key Basic Research Program(grant No.2012FY120500)。
From the mid-19th century to the end of the 20th century, photographic plates served as the primary detectors for astronomical observations. Astronomical photographic observations in China began in 1901, and over a ce...
supported by the National Natural Science Foundation of China(grant Nos.11973065 and U1931207);Jiangsu Funding Program for Excellent Postdoctoral Talent(2022ZB449)to this paper;financial support from China Scholarship Council(No.CSC201904910254);Chinese Academy of Sciences Public Study Abroad Fund(Lingzhe Xu)。
A time-synchronization strategy for packetized transmission of target position about a large-aperture telescope observation control system has been proposed in this study.Compared with the existing telescope tracking ...
supported by the National Key R&D Program of China No.2021YFA0718600;the National Natural Science Foundation of China(grant Nos.41904168,42274227 and U1931122);the Chinese Meridian Project。
The scattered stray light of a coronagraph is a type of stray light that is generated by the objective lens as its surface defects are irradiated by sunlight.The defects mainly include dust and blemishes on the lens s...