中文摘要：

为了解决红外告警系统中远距离目标测距的难题,提出了三站红外告警系统被动测距的方法.与单站多波段红外告警系统以及双站单波段或者双站多波段红外告警系统测距方法相比,此方法具有更高的测量精度及其在全方位上的一致性,应用前景广阔.仿真实验结果表明,三站之间的距离只要不小于900 m,系统将取得很高的测量精度.此外,还详细介绍了在多站中确认相同目标的方法.

英文摘要：

In order to solve the problem of ranging remote targets in IRST system, a method using triple-station IRST system is presented. Compared with the methods which use single-station of multiwave band IRST system and double-station either of single-wave band or multi-wave band IRST systems,this method possesses the merits of higher accuracy and more consistent in all azimuths. Simulation result shows that the IRST system can achieve a very high accuracy when the distance among the three stations is no less than 900 m. How to identify same targets among different stations in IRST system is also illustrated.