汤姆逊—CSF公司正在研制“罗米欧”雷达(Romeo——毫米波防障雷达),它能为昼夜全天候在低空飞行的直升飞机提供安全导航。对传播特性、分辨力及大小进行最佳折衰的研究后,选择了94千兆赫的毫米波。“罗米欧”雷达使用从固态发射机发射的调频连续波波束。该雷达水平角为120°,垂直角为30°,作用距离为几千米。照片中所示的雷达图象是在样机试验期间得到的。正如所见,该装置可探测并辨别出架空电缆及铁塔。通过不同的灰度来显示出距离,最亮表示最远。“罗米欧”雷达也能够探测海岸线、建筑物、树木、电视发射塔、中继通 Thomson - CSF is developing the Romeo radar (millimeter-wave barrier radar), which provides safe navigation for helicopters flying at low altitudes around the clock. After studying the propagation characteristics, resolution, and size for the best compromise, a millimeter-wave of 94 GHz was chosen. The “Roma meter” radar uses a frequency modulated continuous wave beam transmitted from a solid state transmitter. The radar horizontal angle of 120 °, the vertical angle of 30 °, the role of the distance of several kilometers. The radar image shown in the photograph was taken during the prototype test. As can be seen, the device can detect and identify aerial cables and towers. Through the different gray to show the distance, the brightest means the furthest. “Romeo” radar is also capable of detecting coastlines, buildings, trees, television towers, relay links