引力波是物理学和天文学的交叉领域，是当前国际研究的前沿热点。引力波信号极其微弱，探测引力波并开展后续的引力波天文学和宇宙学需要利用精密测量物理不同方向（如激光干涉测距，时间频率，导航定位）所提供的原理、方法和仪器。另一方面，引力波探测提出的严苛要求也引领和推动精密测量物理的发展。引力波的探测将是科学目标和精密测量相互融合的结果，是国际重大科学前沿和国家重大战略需求的结合。本项目根据《指南》精密测量物理重大研究计划项目中培育项目“引力波探测的新方案与新技术”的要求，针对天琴空间低频引力波探测实验所涉及到的一系列与实验方案设计和科学目标验证相关的理论和数据处理问题开展研究。具体内容包括近地轨道中潮汐力对探测器的影响，探测器数据模拟和处理，引力波波形模版库的建立。这些问题的研究和解决对于天琴设计的优化和固化，科学目标的设定和达成都是至关重要的，也是天琴计划进一步实施的基础。

Gravitational wave is an inter-discipline of physics and astronomy, and it is the hotspot of international research frontier at present. The gravitational wave signal is extremely weak, therefore, detecting gravitational wave and carrying out follow-up gravitational wave astronomy and cosmology need to utilise the physics of precision measurements in different directions (such as laser interferometer for measuring distance, time and frequency, navigation and positioning), which provides the principle, method, and apparatus. On the other hand, the stringent requirements of gravitational waves will guide and promote the development of precision measurement physics. The detection of gravitational waves will be the result of the fusion of scientific goals and precision measurements, it is also the combination of the international major scientific frontier and the major strategic needs at home. This proposal, according to the requirements of the foster project "the new scheme and new technology in gravitational wave detection" of the major research plan project of precision measurement of physical in the "Guide", is oriented to a series of experimental scheme design and scientific objectives verification related theoretical and data processing problems involved in the TianQin space low-frequency gravitational wave detection experiments. The specific contents include the influence of tidal force on the near-earth orbit, the simulation and processing of the detector's data, and the establishment of the gravitational wave waveform template bank. Studying and solving these problems are crucial for the optimisation and solidification of TianQin design, as well as setting and achieving the scientific goal, which are the bases for the next step of TianQin project.