Adaptive Processing at Multiple Frequencies Using the Same Antenna Array Consisting of Dissimilar Nonuniformly Spaced Elements Over an Imperfectly Conducting Ground

作     者：Salama, Dojana Sarkar, Tapan K. Abdallah, Mohammad N. Yang, Xiaopeng Salazar-Palma, Magdalena 

作者机构：Syracuse Univ Dept Elect Engn & Comp Sci Syracuse NY 13244 USA Beijing Inst Technol Sch Informat & Elect Beijing 100081 Peoples R China Beijing Inst Technol Beijing Key Lab Embedded Real Time Informat Proc Beijing 100081 Peoples R China Univ Carlos III Madrid Dept Teoria Senal & Comunicac Madrid 28911 Spain 

出 版 物：《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》 (IEEE天线与传播汇刊)

年 卷 期：2019年第67卷第1期

页      面：622-625页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 08[工学] 

主　　题：Adaptive antennas direct data domain least-squares (D3LS) approach imperfect ground plane multiple frequencies mutual coupling compensation 

摘      要：In this communication, an adaptive processing is carried out simultaneously at multiple frequencies using the same antenna array consisting of nonuniformly spaced dissimilar antenna elements. The antenna array may not be deployed in free space but may be located over an imperfect ground plane. First, to correct the various electromagnetic effects affecting the array performance, an electromagnetic transformation technique is described that can compensate for the various coupling effects in the nonplanar array consisting of nonuniformly spaced dissimilar antenna elements operating over an imperfect ground. Then, a direct data domain least-squares method is used to extract the signal of interest in the presence of fluctuating jammer and clutter simultaneously at multiple frequencies, using a single snap shot of the data. In this procedure, there is no need to have any information about noise or clutter, whatsoever.