In recent years there has been an overwhelming demand for the development of the technology of autonomous rendezvous, in which the rapid and accurate onboard generation of rendezvous opportunities is a necessity, especially for the time-critical cases. A novel method, namely the two-dimensional rendezvous window method, is developed to determine all the opportunities of the autonomous rendezvous mission in this research. The concept of reachable domain (RD) of spacecraft and its computational method are firstly introduced. On this base, the method to determine all the time windows in the dimension of time-of-flight (TOF) for a fixed orbital wait time is proposed using the method to determine the RD and these time windows represent all the rendezvous opportunities for the given orbital wait time. And then, the two-dimensional rendezvous window method is proposed, which computes the time windows in both the orbital wait time and TOF dimensions to obtain all the mission opportunities. Numerical examples are provided to demonstrate the accuracy and rapidity of the method, which can achieve all the rendezvous opportunities within merely several seconds and thus is very suitable for the onboard mission planning of autonomous rendezvous.

近年来，对自主会合技术的发展提出了压倒性的需求，其中，特别是对于时间紧迫的情况，特别需要在船上快速且准确地生成会合机会。开发了一种新的方法，即二维会合窗口方法，以确定本研究中自主会合任务的所有机会。首先介绍了航天器可到达域（RD）的概念及其计算方法。在此基础上，提出了一种用于确定固定轨道等待时间的飞行时间（TOF）范围内所有时间窗口的方法，该方法用于确定RD，并且这些时间窗口代表了所有可能的交会机会。给定轨道等待时间。然后，提出了二维交会窗口法，该方法计算了轨道等待时间和TOF维的时间窗口，以获得所有任务机会。数值算例表明了该方法的准确性和快速性，可以在几秒钟之内实现所有会合机会，因此非常适合于自主会合的机载任务计划。