【作者】 郎添娇； 王锐； 孔少洋； 张天然； 李卫东； 龙腾；

【Author】 LANG Tianjiao;WANG Rui;KONG Shaoyang;ZANG Tianran;LI Weidong;LONG Teng;School of Information and Electronics,Beijing Institute of Technology;

【机构】 北京理工大学信息与电子学院；

【摘要】 针对鸟类目标电磁散射特性分析,提出了多扑翼复杂鸟模型电磁散射特性仿真方法,并基于仿真得到的鸟类目标电磁散射截面积(RCS)对飞鸟进行了振翅频率提取。本文首先建立了多扑翼姿态复杂鸟模型,并利用FKEO电磁仿真软件对不同姿态鸟模型进行了电磁散射特性仿真。然后基于线性调频发射信号建立了回波信号模型,最后基于信号模型进行了回波信号仿真及振翅频率提取。更多还原

【Abstract】 In view of the analysis on the electromagnetic scattering characteristics of the airborne birds, a method of simulating the electromagnetic scattering characteristics of airborne birds with multi flapping wings attitudes was proposed. And based on the radar cross-section(RCS) simulation results, the wingbeat frequency of the bird was extracted. Firstly, electromagnetic scattering models of a flying bird with different flapping attitudes were built and the FEKO electromagnetic simulation software was used to obtain the bird target’s electromagnetic scattering characteristics. Furthermore, a linear frequency modulated signal was transmitted and based on which the echo signal model was built. At last, based on the signal model the echo signal was simulated and the wingbeat frequency of the bird model was extracted.更多还原