摘要
文中以均匀平面波的复射线拟合为基础 ,分析了直升机旋翼的旋转对目标回波的调制效应 ,这种调制主要体现在回波的幅度和频率变化上 ,即包含幅度和频率两种调制。研究了影响这两种调制的几个因素 。
Based on the homogeneous plane wave simulation by 3 D complex ray fields, the modulation effect of the backscattered wave from a helicopter rotor has been analyzed .The modulation includes both AM and FM .Some parameters which may affect the modulation effect are studied. The two kinds of target identification are also analyzed.
出处
《电波科学学报》
EI
CSCD
2002年第1期93-96,共4页
Chinese Journal of Radio Science
关键词
调制效应分析
直升机
旋翼
回波
complex ray homogeneous plane wave modulation
