中国光学（中英文）2023，Vol.16Issue(6)：1394-1403,10.DOI:10.37188/CO.2023-0012
太极计划时钟噪声传递的地面原理验证
Ground-based principle verification of clock noise transfer for the Taiji program
摘要
Abstract
The Taiji program is a space gravitational wave detection mission proposed by the Chinese Academy of Sciences,which uses laser differential interference to detect pm-level displacement fluctuations caused by gravitational waves between satellites.In order to eliminate the phase measurement error caused by the desynchronization of the clocks in satellites,the Taiji program intends to use the sideband multiplica-tion transfer scheme to measure and eliminate inter-satellite clock noise.We discuss the requirements,prin-ciples,and methods of inter-satellite clock noise transmission of the Taiji program,and design experiments for the principle verification.By building an electronics experiment system,the limit value of the clock noise of the two systems was tested,the relevant parameters of the experiment were determined,and the principle of the sideband multiplication transfer scheme was verified by further optical experiments.The experimental results show that the clock noise cancellation scheme and related parameters proposed in this paper are reas-onable and feasible,and are suitable for the needs of the Taiji program.Moreover,in the 0.05 Hz-1 Hz fre-quency band,the suppression effect of inter-satellite clock noise is better than 2π× 10-5 rad/Hz1/2,which meets the noise requirements of the Taiji pathfinder and lays an experimental and theoretical foundation for the design of a clock noise transmission scheme and parameters of the Taiji program in the future.关键词
太极计划/空间引力波探测/时钟噪声传递/原理验证Key words
Taiji program/space gravitational wave detection/clock noise transfer/principle verification分类
物理学引用本文复制引用
江强,董鹏,刘河山,罗子人..太极计划时钟噪声传递的地面原理验证[J].中国光学（中英文）,2023,16(6):1394-1403,10.基金项目
国家重点研发计划资助(No.2020YFC2200104) （No.2020YFC2200104）
国科大杭州高等研究院专项资金(No.2022ZZ01006)Supported by the National Key Research and Development Program(No.2020YFC2200104) （No.2022ZZ01006）
the Research Funds of Hangzhou Institute for Advanced Study,UCAS(No.2022ZZ01006) （No.2022ZZ01006）
