面向国内开放低空的发展趋势和重点区域的防护要求，结合最新的光机电控技术，提出一种可对低空空域进行快速目标搜索的光电技术，并研制了一套样机系统。该系统利用搭载在高精度一维转台上的线阵CCD 相机连续采集360°低空全景图像，图像数据通过千兆以太网滑环实时传输至数据处理工作站；数据处理工作站对全景图像进行实时检测，解算得到可疑目标的方向，进而实现对低慢小目标的搜索发现。利用该样机系统开展了初步的观测试验，结果表明：利用该系统可以对低空空域的慢速飞行目标进行全方位的搜索侦查，在大气透明度良好的情况下，最远可以探测到2300 m处的300 mm×300 mm×200 mm大小的无人机目标，测向精度达到602。本研究工作为解决低慢小目标搜索发现问题提供了一种有效手段。

On the development trend of opening low altitude airspace in our country and the protection requirements for key areas, combined with the latest optoelectronic technology, a fast search method to detect low slow small target for low altitude airspace was presented, and a set of prototype system was developed. The system uses a linear CCD camera mounted on a high-precision one-dimensional turntable to collect 360-degree panoramic images of low altitude airspace. The image data is transmitted to the data processing workstation in real time through gigabit Ethernet slide ring. The data processing workstation detects small targets in the area above the skyline and figures out the orientation of target. Preliminary observation experiments of the prototype are conducted, the result shows that the system can detect low slow small target in broad low airspace in all directions. In the case of good atmospheric transparency, it can detect unmanned aerial vehicle (UAV) in size of 300 mm×300 mm×200 mm within 2300 m. The accuracy of the direction of measurement is 60 arcsecond. This research provides an effective mean to solve the problem of searching and finding low slow small targets.