Influence of propagation effects on a millimeter-wave radar operation
Influence of propagation effects on a millimeter-wave radar operation
复制标题
传播效应对毫米波雷达操作的影响
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
G. P. Kulemin
中科院分区：
文献类型：
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作者：
G. P. Kulemin
考虑了多径传播和雨衰减效应以及地面和雨杂波对毫米波雷达工作的联合影响，特别是对最大探测距离和目标可探测性的影响。将毫米波雷达的参数与X波段的类似雷达的参数进行了比较，并对两种情况进行了比较：天线孔径随频率变化为常数（1）和天线增益随频率变化为常数，即天线孔径发生比例变化（2）。这种分析的结果是针对不同类型的地形（准光滑，粗糙，粗糙与植被等）。降雨强度2 ~ 10 mm/h。结果表明，在天线口径不变、多径传播和雨衰联合作用的情况下，全天候毫米波雷达在2 ~ 4km范围内的探测效果优于X波段雷达。
The joint influence of multipath propagation and rain attenuation effects and also the land and rain clutter on the millimeter wave radar operation, in particular, on the maximum detection range and target detectability is considered. The parameters of millimeter wave radar are compared with parameters of analogous radar of X-band and the comparison is carried out for two cases: with frequency change an antenna aperture is constant (1) and with frequency change an antenna gain is constant, i.e. the proportional change of antenna aperture takes the place (2). The results of this analysis are presented for different types of terrain (quasi-smooth, rough, rough with vegetation, etc.) and rains with intensity from 2 to 10 mm/h. It is shown that for constant antenna aperture and joint effects of multipath propagation and rain attenuation the all-weather millimeter wave radar is more effective than analogous X-band radar at ranges less than 2 - 4 km.