标题： 引力波：分类、探测方法、灵敏度和来源 显示英文标题

标题： Gravitational waves: Classification, Methods of detection, Sensitivities, and Sources

摘要： 在给出引力波（GWs）按频率分类的简要介绍和完整分类后，我们回顾并总结了检测方法、灵敏度和来源。 我们注意到，高于300 pHz的实时检测是可能的。 低于300 pHz时，检测可能通过引力波印记或间接方式进行。 我们正处在检测的边缘。 该领域的进展将是充满希望且繁荣的。 在未来一百年里，所有频段的引力波检测灵敏度将提高几个数量级到若干个数量级。 显示英文摘要

摘要： After giving a brief introduction and presenting a complete classification of gravitational waves (GWs) according to their frequencies, we review and summarize the detection methods, the sensitivities, and the sources. We notice that real-time detections are possible above 300 pHz. Below 300 pHz, the detections are possible on GW imprints or indirectly. We are on the verge of detection. The progress in this field will be promising and thriving. We will see improvement of a few orders to several orders of magnitude in the GW detection sensitivities over all frequency bands in the next hundred years.