中文说明：
复杂环境中的微弱目标（如隐身飞机、被地/海/城市杂波淹没的目标等）探测 问题是现代雷达面临的严峻挑战。 与传统的先检测后跟踪（ DBT） 技术相比， 检 测前跟踪（TBD）技术是一种新兴的先进信号处理技术，它通过多帧回波数据积 累和联合处理，可以显著提高雷达的微弱目标检测跟踪性能， 是国际雷达界研究 的前沿热点。 TBD 作为一项正在发展中的新技术，还需要解决一些新的技术问题， 例如， 多目标跟踪维数灾难、临近目标相互干扰等，以及处理难度增加和运算量 增大带来的新问题。
English Description：
Weak target in complex environments (such as a stealth aircraft, submerged by city/land/sea clutter targets, etc.) to detect _ the problem is that modern radar faces severe challenges.With the traditional test before track (DBT) technology, compared to check _ before tracking (TBD) technology is a new kind of advanced signal processing technology, it through multiple frame echo data product _ tired and joint processing, can significantly improve the tracking performance of weak target detection of radar, is a hot spot in the forefront of international research LeiDaJie _.TBD as a new developing technology, also need to solve the problem of some new technology, _, for example, multiple target tracking dimension disaster, near goal interference, etc., as well as the processing difficulty was increased and the computation _ brought new problems.