隐身目标由于其雷达目标反射截面太小, 仅靠主动探测手段, 其有效性受到限制, 主被动联合探测是一个有效尝试。本文就被动探测方向的特征问题进行论证分析, 采用“am”大气模型, 就地基、空基隐身飞机目标的辐射探测任务要求进行THz无源遥感建模和仿真, 并结合遥感系统进行综合指标论证, 给出实现其任务目标的基本要求(包括频点、天线口面以及平台要求)。

Because the reflection cross section of stealth target is too small, the detection effectiveness by active detection method is limited. Active and passive joint detection is an effective way. The characteristics of passive detection is analyzed. Based on “am”(atmospheric model), a modeling and simulation method for stealth target with THz passive sensing is established according to the requirements of detecting hiding aircraft from ground-based and space-based. The analysis of comprehensive indexes is conducted combined with remote sensing system. The basic technical requirements of this task are concluded.