标题： 时延干涉测量与最小零频 显示英文标题

标题： Time delay interferometry with minimal null frequencies

摘要： 时间延迟干涉（TDI）是引力波（GW）空间任务中用于通过组合多个激光链路并建立等臂干涉仪的等效结构来减轻激光频率噪声的关键技术。 当合成激光链路中的周期性信号/噪声被抵消时，零频将出现在噪声谱和GW响应中。 这些频率是TDI的特征频率（CFs），与它的组合几何有关。 在本工作中，我们实现了一种第二代TDI配置，称为混合中继，以执行噪声抑制和数据分析，其CFs仅为基准第二代迈克尔逊观测器的四分之一。 我们检查了TDI配置在激光噪声抵消和时钟噪声抑制中的性能，并验证了其基本能力。 为了评估其在信号提取中的鲁棒性，我们模拟了包含大质量黑洞双星引力波信号的数据，并与基准迈克尔逊TDI配置进行比较进行参数推断。 结果表明，替代的TDI解决方案在执行数据分析方面可能比迈克尔逊更鲁棒。 显示英文摘要

摘要： Time delay interferometry (TDI) is a key technique employed in gravitational wave (GW) space missions to mitigate laser frequency noise by combining multiple laser links and establishing an equivalent equal arm interferometry. The null frequencies will be introduced in noise spectra and GW response when the periodical signal/noise is canceled in synthesized laser links. These frequencies are characteristic frequencies (CFs) of a TDI which related to its geometry of combination. In this work, we implement a second-generation TDI configuration referred to as hybrid Relay to perform noise suppressions and data analysis, whose CFs are only one-quarter that of the fiducial second-generation Michelson observables. We examine the performance of TDI configuration in laser noise cancellation and clock noise suppression and justify its essential capabilities. To assess its robustness for signal extraction, we simulate data containing GW signals from massive black hole binaries and perform parameter inferences with comparisons against the fiducial Michelson TDI configuration. The results demonstrate that the alternative TDI solution could be more robust than Michelson in fulfilling data analysis.