... low-altitude aerial photograph ==> 低空航摄照片 low-altitude antenna ==> 低仰角天线 low-altitude bombing ==> 低空轰炸 ...
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结论显示：偏角馈入抛物面天线较中心馈入抛物面天线在抑制远旁瓣方面有优势，在做低仰角扫描时不会产生远旁瓣回波；
It is concluded that an offset feed parabolic antenna has the advantage in side lobe suppression over central feed parabolic antenna.
当雷达在低仰角跟踪时，降低多径误差的阵列天线波束的形成技术，可消除或降低低仰角跟踪目标时的测量误差。
During radar tracking target in low elevation, the measuring error of tracked target was removed or reduced with array antenna beam forming technique that can reduce the multi-path error.
首先给出了某单脉冲雷达低仰角多路径效应一个完整的仿真模型，包括：多路径传播几何模型、雷达天线模型、跟踪误差模型。
A complete simulation model for target tracking of a monopulse radar that works at low elevation angles with ground reflection multipath is given.
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