2022
DOI: 10.1103/physrevd.105.042009
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Experimental verification of intersatellite clock synchronization at LISA performance levels

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Cited by 18 publications
(3 citation statements)
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“…This approach of reducing laser and clock noise in the same processing step has also been recently been demonstrated in an experimental test bed [28], such that we are confident that it will be applicable to the real LISA data.…”
Section: Discussionmentioning
confidence: 82%
“…This approach of reducing laser and clock noise in the same processing step has also been recently been demonstrated in an experimental test bed [28], such that we are confident that it will be applicable to the real LISA data.…”
Section: Discussionmentioning
confidence: 82%
“…若采用前两者方法均无法满足要求时, 数据后处 理的方法可用于噪声最后的消减。 在空间引力波探测 中,采用 TDI(Time Delay interferometry)技术 [76][77][78][79][80] , 对于频率抖动噪声和星间时钟噪声的消除是最典型 的数据后处理应用。由于轨道的相对运动,无法保持 三星间等臂长干涉仪的构建, 无法共模消除星间噪声。 因此, 需要进行后数据处理构建虚拟等臂干涉仪以消 除频率抖动噪声和时钟噪声的影响。除 TDI 消除星 间噪声外,采用"扰动量测量-相关性分析-数据后抑 制" 的方法进行噪声消除广泛的应用于在轨数据处理、 地面关键技术验证和噪声建模中。 为消除测量中各类 噪声的影响,LISA Pathfinder 进行了大量的噪声建模 和数据后处理消除工作 [14] , 对干涉系统中各类噪声, 如 TTL 噪声 [16] 、频率噪声 [81] 、相位计噪声 [53] 、温度 噪声、RIN 噪声 [73] 等进行了全面的解读。 3.2.1 激光强度噪声 相对强度涨落噪声(RIN)是干涉仪中光功率波 动带来的噪声,也叫光功率噪声 [73] 。RIN 对干涉测量 的影响机制分为以下两个方面。 F o r R e v i e w O n l y [73] 。通过建立测 距信号与功率间传递函数的方法, 可以评估强度噪声 的大小 [33] 。 另一方面是测试质量的辐射压噪声, 这一效应的 作用频段主要是在低频。 打到测试质量上的光功率发 生波动时,会引起辐射压噪声,体现为测试质量受到 力噪声的干扰,进而产生位移的波动。测试质量受到 的力 F 与入射光功率 P 之间的关系为:…”
Section: 干涉信号进入探测器时是电流信号, 先后经过跨 阻放大器(Tia)和低通滤波器实现电压转换及抗混 叠的功能,继而通过模数转...unclassified
“…High-precision pointing performance, i.e., pointing accuracy and pointing stability, is urgently needed for sensitive payloads boarding on spacecraft. For instance, the LISA (Laser Interferometer Space Antenna), which is dedicated to gravitational detection [1,2], imposes relative displacement precision with 10 pm/ √ Hz [3]. Aiming at detecting supermassive black-hole mergers and extreme mass ratio inspirals, the Chinese space mission Taiji requires position noise lower than 8 pm/ √ Hz and acceleration noise lower than 3 × 10 −15 ms −2 / √ Hz [4].…”
Section: Introductionmentioning
confidence: 99%