奥米亚棕蝇听觉机制测向优化算法研究  

Research on optimization algorithm for direction finding based on the auditory mechanisms Ormia Ochracea

作　　者：王思佳 陈卫东[1] Wang Sijia;Chen Weidong(The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所

出　　处：《电子测量技术》2018年第18期139-144,共6页Electronic Measurement Technology

摘　　要：传统测向技术利用干涉仪体制,用大孔径天线阵列和方位角之间的关系实现测向。已经证实奥米亚棕蝇仿生机械模型对两侧信号微小差异可实现有效放大,突破了理论上的阵列天线间距下限。由于机械振动和电磁振荡数学形式上具有一致性,将奥米亚棕蝇听觉系统机械模型位移系统的机械量和电学系统的电学量进行类比,得到机械系统的等效类比耦合电路。基于两类模型,分别提出幅度差增益因子的概念并对两模型优化算法分析其一致性。用MATLAB和ADS进一步验证优化算法实用性。结果表明,耦合机械模型和耦合电路模型在声定位方面优化算法本质上一致,验证了耦合网络的有效性。为分析方便,可基于电路模型实现小孔径天线阵列高精度测向。The traditional direction finding technology utilizes the interferometer system which using the relationship between the large aperture antenna array and azimuth angle to achieve the direction finding. The Ormia Ochracea bionic mechanical model can effectively amplify small differences,which breaks the theoretical lower limit of the array antenna spacing.The mechanical vibration and electromagnetic oscillation exist consistency,after comparing the two models,we obtained the equivalent analog circuit representation of the mechanical system.Based on the two types of models,the concept of the amplitude gain factor is proposed and the two model optimization algorithms are analyzed for their consistency.Using MATLAB and ADS to further verify the practicality of the optimization algorithm.The results show that the two models are essentially consistent in the acoustic localization algorithm and verified the validity of the coupling network. A small-aperture antenna array high accuracy direction finding based on the circuit model can be implemented.

关 键 词：声源定位 电路设计 机电类比 优化算法 

分 类 号：TN702[电子电信—电路与系统] TN98