Results 291 to 300 of about 97,888 (314)

Estimation Reliability Function Assisted Sound Source Localization With Enhanced Steering Vector Phase Difference

IEEE/ACM Transactions on Audio Speech and Language Processing, 2021
The performance of the traditional direction-of-arrival (DOA) estimation algorithms greatly degrades in noisy and reverberant environments. Recently, deep learning has been applied to sound source localization and provided the substantial improvement in ...
Longbiao Cheng, Xingwei Sun, Dingding Yao, Junfeng Li, Yonghong Yan   +4 more
semanticscholar   +1 more source

A robust STAP method for airborne radar based on clutter covariance matrix reconstruction and steering vector estimation

Digit. Signal Process., 2018
In this paper, we consider the problem of space–time adaptive processing (STAP) when inaccurate target (namely the angle and Doppler frequency of target are uncertain) exists in the training samples, which would result in target self-nulling effects and ...
Zhihui Li, Yongshun Zhang, Hanwei Liu, Bin Xue, Yang Liu   +4 more
semanticscholar   +1 more source

Experimental Study on MUSIC-Based DOA Estimation by Using Universal Steering Vector

IEICE Transactions on Communications, 2008
MUSIC-based estimation of direction of arrival (DOA) using universal steering vector (USV) is experimentally studied. A four-element array antenna and a four-channel receiver are employed for the experiment. In order to improve the accuracy of DOA estimation, USV which has already included the effect of mutual coupling between array elements and effect
Qiaowei Yuan, Qiang Chen 0001, Kunio Sawaya   +2 more
openaire   +1 more source

Theory and Experiment of Array Calibration via Real Steering Vector for High-Precision DOA Estimation

IEEE Antennas and Wireless Propagation Letters, 2022
Adaptive array calibration is a key technique, which significantly affects the performance of array signal processing in real environments. In this letter, we propose a general and simple method using real steering vectors (RSVs) for array calibration ...
Peng Yang, Bei Hong, Wei Zhou
semanticscholar   +1 more source

DOA and steering vector estimation using a partially calibrated array

IEEE Transactions on Aerospace and Electronic Systems, 1996
We consider the problem of estimating directions of arrival (DOAs) using an array of sensors, where some of the sensors are perfectly calibrated, while others are uncalibrated. We identify a cost function whose minimizer is a statistically consistent and efficient estimator of the unknown parameters-the DOAs and the gains and phases of the uncalibrated
A.J. Weiss, B. Friedlander
openaire   +1 more source

Algorithm for steering vector estimation using second order moments

Conference Record of The Twenty-Ninth Asilomar Conference on Signals, Systems and Computers, 2002
The increasing use of the electromagnetic spectrum is expected to present a higher demand for effective methods for interference canceling and signal separation. The goals of signal separation/reconstruction and interference canceling can be achieved by estimating the steering vectors of the array and then exploiting this information.
A.J. Weiss, B. Friedlander
openaire   +1 more source

Robust adaptive beamforming based on jointly estimating covariance matrix and steering vector

2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011
In this paper, a new adaptive beamforming algorithm with joint robustness against covariance matrix uncertainty as well as steering vector mismatch is proposed. First, the theoretical covariance matrix is estimated based on the shrinkage method. Subsequently, the difference between the actual and the presumed steering vector is estimated by solving a ...
Yujie Gu, Amir Leshem
openaire   +1 more source

Robust Adaptive Beamforming Based on Steering Vector Estimation and Interference Power Correction via Subspace Orthogonality

Circuits, systems, and signal processing, 2023
Huichao Yang, Linjie Dong
semanticscholar   +1 more source

Spoofing Interference Suppression for GNSS Based on Estimating Steering Vectors

2015
The paper proposes a spoofing interference suppression algorithm for multiple spoofing interferences existing simultaneously. First, the signals which received from the reference antenna array are captured. The information about visible satellite signals’ Doppler frequency and code delay are acquired.
Yaotian Zhang, Lu Wang, Wenyi Wang, Dan Lu, Qiongqiong Jia, Renbiao Wu   +5 more
openaire   +1 more source

Covariance Matrix Reconstruction With Interference Steering Vector and Power Estimation for Robust Adaptive Beamforming

IEEE Transactions on Vehicular Technology, 2018
To ensure link reliability and signal receiving quality, robust adaptive beamforming (RAB) is vital important in mobile communications. In this paper, we propose a new RAB algorithm based on interference-plus-noise covariance (INC) matrix reconstruction ...
Zhi Zheng, Yan Zheng, Wen-qin Wang, Hongbo Zhang   +3 more
semanticscholar   +1 more source