Direction Finding with Cyclostationarity Analysis Against Frequency Interference  

作　　者：Han Liu Jingfeng Chen Ziheng Ding Gang Ni Chong He Ronghong Jin 

机构地区：[1]Department of Electronic Engineering,Shanghai Jiao Tong University,Shanghai 200240,China

出　　处：《Journal of Communications and Information Networks》2022年第1期88-95,共8页通信与信息网络学报（英文）

基　　金：the National Natural Science Foundation of China(62001291);the National Natural Science Foundation of China(61901263);the Joint Foundation of Key Laboratory of Shanghai Jiao Tong universityXidian University,Ministry of Education(LHJJ/2021-09);the Shanghai Science and Technology Innovation Action Plan(20511106605)。

摘　　要：In this paper, a novel anti-interference direction finding(DF)method for amplitude comparison method based on cyclostationarity is proposed. With the periodic properties of the communication signals, the desired signal’s amplitude value can be effectively obtained even though there is an interference signal whose frequency spectrum overlaps with the desired signal in the environment,and the corresponding incident angle can be estimated accurately with the amplitude comparison method. The influence of interference signal on the amplitude comparison method is discussed and the proposed method’s theoretical feasibility is also analyzed. Compared with the conventional method,simulations are provided to demonstrate the anti-interference capability of the proposed method. The amplitude comparison DF system working at 2.44 GHz and 5.8 GHz is also constructed to verify its feasibility.

关 键 词：CYCLOSTATIONARITY cyclic autocorrelation function(CAF) amplitude comparison method direction finding(DF) 

分 类 号：TN91[电子电信—通信与信息系统]