通过星震学精确测定大样本恒星的质量和年龄，在确定恒星性质、研究银河系以及宇宙大尺度结构的问题上有重要的科学意义。近年来，多个空间观测任务（如CoRoT、Kepler）的开展使星震学研究取得了革命性进步，但这些空间观测大都局限于较小的视场。TESS 空间卫星项目为我们首次在全天范围内研究类太阳振动的恒星提供了前所未有的机会。

论文首先基于TESS卫星获取的大样本、长时序测光数据，开发了处理测光数据并提取全局星震学参数的自动化流水线程序，从二十多万颗恒星中筛选出6,618颗类太阳振动恒星，构建了目前首个基于TESS卫星2分钟间隔观测数据的、覆盖全天的类太阳振动样本。此样本包含亚巨星、红巨星和红团簇巨星，为进一步利用恒星作为探针研究银河系的结构与演化提供了有力的参考。

其次，我们测定了振动样本恒星的星震学参数。所有6,618颗恒星均得到了最大功率谱频率νmax的测量，其中2,541颗恒星得到了大频率间隔?ν的测量。νmax和?ν测量结果的典型误差分别为2.1%、4.4%。

最后，我们通过星震学分析精确确定了2,541颗恒星的质量、半径及其表面重力加速度，结果的典型误差分别为19.8%、9.4%和0.01dex。这些结果可为机器学习方法提供高精度的星震学训练样本，同时可用于恒星参数定标、银河系考古等工作。我们还就TESS卫星对类太阳振动的探测能力做了讨论。

The asteroseismology has proven extremely valuable for deriving fundamental parameters with high precision, probing the evolution of the Milky way and then the large scale structure of the universe. This line of research has been revolutionized over the past decade by space missions such as CoRoT and Kepler. However, previous missions have been limited to relatively small fields of view. The recently launched NASA’s Transiting Exoplanet Survey Satellite (TESS) mission is for the first time giving us the potential to perform inference from solar­like asteroseismology across the whole sky.

In this thesis, we firstly developed an automated pipeline to deal with continuous photometric data and estimate global oscillation parameters. We systematically characterized 6,618 solar­like oscillations from more than 200,000 stars. This is the first all­sky yield of solar­like oscillating with TESS 2­minute cadence data sets. Our sample includes subgiants, red giants and red clump giants, which can help us studying in­depth stellar properties and investigating the structure and evolution of the Milky Way.

Secondly, we determined the global oscillation parameters. All of 6,618 stars yield a measurement of the frequency of maximum acoustic power, νmax. Of the clear detections we reliably measure the frequency separation between overtone radial modes, ∆ν, in 2,541 stars. The typical uncertainties of νmax and ∆ν is about 2.1 % and 4.4 %, respectively.

Finally, we present a catalog of seismically derived mass, radius, and therefore surface gravity for oscillators. The typical uncertainties are 19.8 % for mass, 9.4 % for radius and 0.01 dex for log g. We also do a discussion about the detectability of solar­like oscillations in TESS photometry.