forward looking radar meaning in English

前方观测雷达
前方警戒雷达
前视雷达

In the application of tf / ta2 flight control system , significant issues arise due to position errors , which is destructive for low altitude penetration aircraft . the concept of utilizing terrain contour matching technique to fixing the errors is introduced , and this concept is essential for military tf / ta2 flight applications without gps and forward looking radar in our nation
论文首先简要介绍了综合tf ta ~ 2飞行控制系统的相关背景知识和技术，包括航迹规划、飞行控制和航迹跟踪等相关技术，给出了地形匹配系统设计和应用的技术背景和相关理论。