摘要
米波雷达的波束较宽、由于地面反射引起波瓣分裂,通常只能估高而不能用来测高。针对这一难题本文提出一种基于高度分集的两波束米波雷达测高方法。该方法采用高度不同的两个天线,利用波瓣分裂情况及相互相位关系来测量目标高度。文章分析了此方法测高的精度及影响精度的一些因素。本测高方法已应用于某型雷达信号处理机中,并取得良好效果。
The beam of VHF radar is rather wide, and the reflection from ground results in beam split, thus the radar can only be used to estimate its height while it cannot be used to measure the height accurately. For such a problem, an effective method based on altitude diversity to measure the height using VHF radar is presented in this paper. Two antennas with different heights are adopted in this method, using beam split and the connection of phase of different beams to calculate the height of target. Performance of this method is analyzed, such as the measurement precision and the factors that affect precision. This method has been used in a certain radar signal processor and gets a good effect.
出处
《航空计算技术》
2006年第6期59-61,共3页
Aeronautical Computing Technique
关键词
米波雷达
波辫分裂
高度分集
测高
VHF radar
beam split
altitude diversity
altitude measurement
