摘要
作为中、近程导弹武器系统的主要作战对象,武装直升机低速飞行或旋停时,其机身回波极易被背景杂波掩盖,导引头很难识别,所以只能通过旋翼回波信号跟踪目标。简要介绍了直升机旋翼谱的理论模型,并详细介绍了旋翼谱基带和射频复现的方式。在成功复现直升机射频信号的基础上,完成某型号导弹攻击直升机半实物仿真试验,半实物仿真试验结果表明了直升机旋翼信号射频复现方式及建模的有效性、正确性和实用性。
As the main target of middle or short range missile weapon system,the echo signal of helicopter is often sheltered by all kinds clutter when flying slowly or hovering,and the guider can＇t identify the echo,so the aim only can be tracked through rotor blade echoes.The theory model of helicopter rotor blade signal was briefly introduced,and the realization methods of rotor blade base band signal and RF signal were given.On the basis of realizing helicopter＇s RF signal,the hardware-in-the-loop simulation of the missile attacking helicopter was done.The results show the validity,correctness and practicability of the modeling and the way for RF signal realization.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2010年第7期1769-1772,共4页
Journal of System Simulation
关键词
直升机旋翼
基带信号
射频复现
半实物仿真
helicopter rotor blade
base band signal
RF signal realization
hardware-in-the-loop simulation
