项目名称: 基于分布式电磁矢量传感器阵列的混合信源定位方法研究
项目编号: No.61501089
项目类型: 青年科学基金项目
立项/批准年度: 2016
项目学科: 无线电电子学、电信技术
项目作者: 陈慧
作者单位: 电子科技大学
项目金额: 23万元
中文摘要: 与标量传感器阵列相比,分布式电磁矢量传感器阵列因可以同时获得信号的空间到达信息和极化信息、及其空间几何结构,而具有更强的检测能力、系统分辨能力、抗干扰能力和极化多址能力。目前基于电磁矢量传感器阵列的混合源定位方法研究相对较少,且现有的混合源定位方法存在定位精度低、处理速度慢及系统复杂度高等问题。为此,本项目通过引入分布式压缩感知、过水平采样、张量分析及凸优化等理论,针对分布式电磁矢量传感器阵列进行研究远近场混合情况下的高精度信源定位方法,远近场混合源沿多径传输、阵列存在误差实际复杂情况下的稳健混合信源定位方法,及实际复杂环境下的低复杂度混合信源定位方法。针对分布式电磁矢量传感器阵列,研究性能高且复杂度低的混合信源定位估计算法具有重要的理论意义和实用价值。
中文关键词: 波达方向估计;参数估计;阵列构形;稀疏重建;张量分析
英文摘要: Compared with scalar sensor array, distributed electromagnetic vector sensor array has stronger detection capability, system resolution capability, anti-interference capability and polarization multiple access capability because it can both obtain the spatial information and polarization information of the signal as well as its geometric structure. While the existing localization algorithms based on electromagnetic vector sensor array is relatively few, and these algorithms confront following problems: low localization accuracy, low processing speed, high complexity of the system and so on. Therefore, the project intends to study high-accuracy source localization algorithms for mixed far-near signal sources, robust localization algorithms under more complex situations of mixed far-near signal sources along multipath transmission, array errors exist, and low complexity mixed signal source localization algorithms by introducing distributed compressive sensing, level crossing sampling, tensor analysis and convex optimization theories. For distributed electromagnetic vector sensor array, studying high performance and low computational complexity mixed source localization algorithm has important theoretical significance and practical value.
英文关键词: Spatial spectrum estimation ;Parameter Estimation ;Array Geometry;Sparse Reconstruction;Tensor Analysis