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Extended Nested Array with a Filled Sensor for DOA Estimation of Non-circular Signals: 《Transactions of Nanjing University of Aeronautics and Astronautics》2025年第1期90-100,共11页LI Xiaolong ZHANG Xiaofei SHEN Zihan; supported by China National Science Foundations(Nos.62371225,62371227)。; Sparse array design has significant implications for improving the accuracy of direction of arrival(DOA)estimation of non-circular(NC)signals.We propose an extended nested array with a filled sensor(ENAFS)based on the...; 关键词：non-circular signal extended nested array sparse array direction of arrival(DOA)estimation sum-difference coarray

Sonar Echo Simulation Technology Based on Array Phase Weight Estimation: 《Journal of Communications and Information Networks》2024年第4期320-329,共10页Jun Liu Shenghua Gong Tong Zhang Wenxue Guan Zhenxiang Zhao; supported by the Joint Funds of the National Natural Science Foundation of China under Grant U22A2009;in part by the National Key Research and Development Program under Grant 2021YFC2803000.; Sonar locates underwater targets by receiving reflected sound waves.However,the complex marine environment makes it difficult to set targets in appropriate locations and conditions.The sonar echo simulator has the fun...; 关键词：sonar echo simulation DOA estimation underwater backscatter BEAMFORMING

MDTCNet:Multi-Task Classifications Network and TCNN for Direction of Arrival Estimation: 《China Communications》2024年第10期148-166,共19页Yu Jiarun Wang Yafeng; funded by Beijing University of Posts and Telecommunications-China Mobile Research Institute Joint Innovation Center。; The direction-of-arrival(DoA) estimation is one of the hot research areas in signal processing. To overcome the DoA estimation challenge without the prior information about signal sources number and multipath number i...; 关键词：DoA estimation MDTCNet millimeter wave system multi-task classifications model regression model

一种基于迭代近端投影的被动声纳探测离网格DOA估计方法: 《哈尔滨工程大学学报（英文版）》2024年第2期417-424,共8页戴泽华张亮韩笑殷敬伟; supported by the National Science Foundation for Distinguished Young Scholars(Grant No.62125104);the National Natural Science Foundation of China(Grant No.52071111).; Traditional direction of arrival(DOA)estimation methods based on sparse reconstruction commonly use convex or smooth functions to approximate non-convex and non-smooth sparse representation problems.This approach ofte...; 关键词：DOA estimation Sparse reconstruction Off-grid model Iterative proximal projection Passive sonar detection

DOA estimation of high-dimensional signals based on Krylov subspace and weighted l_(1)-norm: 《Journal of Systems Engineering and Electronics》2024年第3期532-540,F0002,共10页YANG Zeqi LIU Yiheng ZHANG Hua MA Shuai CHANG Kai LIU Ning LYU Xiaode; supported by the National Basic Research Program of China。; With the extensive application of large-scale array antennas,the increasing number of array elements leads to the increasing dimension of received signals,making it difficult to meet the real-time requirement of direc...; 关键词：direction of arrival(DOA) compressed sensing(CS) Krylov subspace l_(1)-norm dimensionality reduction

High-Precision DOA Estimation Method Based on Synthetic Aperture Technique: 《Journal of Beijing Institute of Technology》2024年第2期111-118,共8页Yongjia Dou Guangcai Sun Yuqi Wang Mengdao Xing; supported in part by the National Science Fund for Excel-lent Young Scholars(No.62222113);in part by the joint Funds of the National Natural Science Foundation of China(No.U22B2015);in part by the stabilization support of National Radar Signal Processing Laboratory(No.KGJ202203);in part by the Fundamental Research Funds for the Central Universities(No.ZDRC2004).; The existing direction-of-arrival(DOA)estimation methods only utilize the current received signals,which are susceptible to noise.In this paper,a method for DOA estimation based on a motion platform is proposed to ach...; 关键词：synthetic aperture direction-of-arrival(DOA)estimation coherent accumulation

2D DOA Estimation of Coherent Signals with a Separated Linear Acoustic Vector-Sensor Array: 《China Communications》2024年第2期155-165,共11页Sheng Liu Jing Zhao Decheng Wu Yiwang Huang Kaiwu Luo; supported by the National Natural Science Foundation of China (62261047,62066040);the Foundation of Top-notch Talents by Education Department of Guizhou Province of China (KY[2018]075);the Science and Technology Foundation of Guizhou Province of China (ZK[2022]557,[2020]1Y004);the Science and Technology Research Program of the Chongqing Municipal Education Commission (KJQN202200637);PhD Research Start-up Foundation of Tongren University (trxyDH1710);Tongren Science and Technology Planning Project ((2018)22)。; In this paper, a two-dimensional(2D) DOA estimation algorithm of coherent signals with a separated linear acoustic vector-sensor(AVS) array consisting of two sparse AVS arrays is proposed. Firstly,the partitioned spat...; 关键词：acoustic vector-sensor coherent signals extended signal subspace sparse array

Multi-Source Underwater DOA Estimation Using PSO-BP Neural Network Based on High-Order Cumulant Optimization: 《China Communications》2023年第12期212-229,共18页Haihua Chen Jingyao Zhang Bin Jiang Xuerong Cui Rongrong Zhou Yucheng Zhang; Strategic Priority Research Program of Chinese Academy of Sciences,Grant No.XDA28040000,XDA28120000;Natural Science Foundation of Shandong Province,Grant No.ZR2021MF094;Key R&D Plan of Shandong Province,Grant No.2020CXGC010804;Central Leading Local Science and Technology Development Special Fund Project,Grant No.YDZX2021122;Science&Technology Specific Projects in Agricultural High-tech Industrial Demonstration Area of the Yellow River Delta,Grant No.2022SZX11。; Due to the complex and changeable environment under water,the performance of traditional DOA estimation algorithms based on mathematical model,such as MUSIC,ESPRIT,etc.,degrades greatly or even some mistakes can be ma...; 关键词：gaussian colored noise higher-order cumulant multiple sources particle swarm optimization(PSO)algorithm PSO-BP neural network

Off-grid DOA estimation via a deep learning framework: 《Science China(Information Sciences)》2023年第12期218-233,共16页Yan HUANG Yanjun ZHANG Jun TAO Cai WEN Guisheng LIAO Wei HONG; supported by National Natural Science Foundation of China (Grant No.61901112)。; Direction-of-arrival(DOA)estimation problem is one of the most important tasks for array signal processing.Conventional methods are limited by either the computational complexity or the resolution.In this paper,a nove...; 关键词：direction-of-arrival(DOA)estimation deep learning(DL) OFF-GRID array signal processing

Joint polarization and DOA estimation based on improved maximum likelihood estimator and performance analysis for conformal array: 《Journal of Systems Engineering and Electronics》2023年第6期1490-1500,共11页SUN Shili LIU Shuai WANG Jun YAN Fenggang JIN Ming; the National Natural Science Foundation of China(62071144,61971159,61871149).; The conformal array can make full use of the aperture,save space,meet the requirements of aerodynamics,and is sensitive to polarization information.It has broad application prospects in military,aerospace,and communic...; 关键词：conformal array maximum likelihood(ML)estimator manifold separation technology(MST) parameter estimation Cramer-Rao bound(CRB).

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