TY - GEN
T1 - A New Method for DOA Estimation in the Presence of Non-uniform Noise
AU - Babarsad, Sina Bakhshandeh
AU - Mahmoudi, Alimorad
AU - Namjoo, Ehsan
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - This paper investigates the problem of estimating the direction of arrival in non-uniform sensor noise. To this aim, The covariance matrix of the noise is estimated, and its effect is attenuated to obtain an improved covariance matrix of the observations. So, the problem can be solved using common subspace based methods for DOA estimation under uniform white noise assumption like the MUSIC algorithm. Simulation results confirm that the proposed method outperforms other existing subspace based methods when RMSE is utilized as the accuracy metric.
AB - This paper investigates the problem of estimating the direction of arrival in non-uniform sensor noise. To this aim, The covariance matrix of the noise is estimated, and its effect is attenuated to obtain an improved covariance matrix of the observations. So, the problem can be solved using common subspace based methods for DOA estimation under uniform white noise assumption like the MUSIC algorithm. Simulation results confirm that the proposed method outperforms other existing subspace based methods when RMSE is utilized as the accuracy metric.
KW - AR modeling
KW - DOA estimation
KW - Nonuniform noise
KW - Subspace-based methods
UR - https://www.scopus.com/pages/publications/86000019167
U2 - 10.1109/AREE63378.2025.10880298
DO - 10.1109/AREE63378.2025.10880298
M3 - Conference contribution
AN - SCOPUS:86000019167
T3 - 2025 5th National and the 1st International Conference on Applied Research in Electrical Engineering, AREE 2025
BT - 2025 5th National and the 1st International Conference on Applied Research in Electrical Engineering, AREE 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th National and the 1st International Conference on Applied Research in Electrical Engineering, AREE 2025
Y2 - 4 February 2025 through 5 February 2025
ER -