Recent progresses in the target tracking technology have changed current unmanned systems into a realistic substitute to the conventional tracking systems. In this paper, existing algorithms on target tracking for both aerial and underwater application scenario are classified based on the active and passive modes of target tracking. These algorithms are analysed and compared in the form of mode, tracking technology and respective validation algorithm available in the literature. From this survey, the future directions and major challenges are edged to obtain higher level of tracking performance.

中文翻译：

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目标跟踪问题的最新进展：综述

目标跟踪技术的最新进展已将当前的无人系统转变为传统跟踪系统的现实替代品。本文根据目标跟踪的主动和被动模式对现有的空中和水下应用场景的目标跟踪算法进行了分类。以文献中可用的模式、跟踪技术和各自的验证算法的形式对这些算法进行了分析和比较。从这项调查中可以看出，未来的方向和主要挑战是获得更高水平的跟踪性能。