@inproceedings{237dad927e2649c995078a1869f09113,
title = "Ziv-Zakai Bound for Wideband Two-Dimensional DOA Estimation with a Single Source",
abstract = "The Ziv-Zakai bound (ZZB) for two-dimensional (2D) wideband direction-of-arrival (DOA) estimation of a single source under subband model is investigated. The regularity conditions and the minimum error probability for 2-D wideband ZZB are derived first, along with its closed-form expression. In the asymptotic region with high signal-to-noise ratio (SNR), the derived ZZB approaches the Cram{\'e}r-Rao bound (CRB). In contrast, in the prior performance region with a low SNR, the estimation error is distributed throughout the entire prior parameter space, and thus ZZB depends on the prior covariance matrix. Simulation results indicate that the derived ZZB provides a better performance benchmark than the widely accepted CRB in terms of tightness and effectiveness.",
keywords = "2-D DOA Estimation, subband model, wideband, Ziv-Zakai bound",
author = "Yizhe Wang and Qining Feng and Qing Shen and Wei Liu and Hantian Wu",
note = "Publisher Copyright: {\textcopyright} 2025 IEEE.; 2025 IEEE Workshop on Signal Processing Systems, SiPS 2025 ; Conference date: 01-11-2025 Through 04-11-2025",
year = "2025",
month = nov,
doi = "10.1109/SiPS66314.2025.11261240",
language = "English",
series = "2025 IEEE Workshop on Signal Processing Systems, SiPS 2025",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1--5",
booktitle = "2025 IEEE Workshop on Signal Processing Systems, SiPS 2025",
}