基于非均匀阵列的二维测向技术的实现  

Design of Two-dimensional Direction-finding Equipment Based on the Spatial Spectrum Estimation

作　　者：郭琳[1] 王宏[1] 石林艳[1] 

机构地区：[1]中国电子科技集团公司第五十一研究所,上海201802

出　　处：《无线电工程》2015年第6期44-48,共5页Radio Engineering

摘　　要：基于瞬时大带宽扫描,同时多个窄带辐射源二维测频、测向的需求,利用了非均匀L型天线阵列形式,并在该阵列形式的基础上,利用改进的遗传算法合理配置、优化天线阵元之间的距离。研究了基于频谱检测和空间谱估计结合的频域联合算法,该算法用于稳健的二维高精度测频、测向,同时设计了一套高精度二维测向设备,对上述技术进行了试验验证,测试结果达到预期效果。Based on the requirements of instantaneous wide bandwidth scanning and simultaneous2D frequency measure-ment and direction finding of multiple narrowbandradiation sources,the paper uses the non-uniform L-type antenna array and the im-proved genetic algorithm based on this array type to configure and optimize the distance between the antenna array elements rationally. The paper also studies a frequency domain joint algorithm based on a combination of spectrum sensing and spatial spectrum estimation. This algorithm is used for robust 2D high-precision frequency measurement and direction finding.At the same time,the paper designs a set of high-precision 2D direction finding equipment,which validates the above technique in practice,and the test resultsshow that the expectation has been reached.

关 键 词：空间谱估计 遗传算法 非均匀阵列 设备 

分 类 号：TN974[电子电信—信号与信息处理]