Direct position determination of moving targets based on DOA

Autor:	Shuming He, Yuan Jiang, Lei Zhao, Guorui Lin, Bo Peng
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	array signal processing direction‐of‐arrival estimation Doppler shift location based services Electrical engineering. Electronics. Nuclear engineering TK1-9971
Zdroj:	Electronics Letters, Vol 60, Iss 15, Pp n/a-n/a (2024)
Druh dokumentu:	article
ISSN:	1350-911X 0013-5194
DOI:	10.1049/ell2.13297
Popis:	Abstract Compared with the traditional two‐step localization methods, the direct position determination (DPD) method is more robust at low signal‐to‐noise ratio. However, to guarantee the optimal location result, the computational complexity of DPD with grid search is too high, especially for moving targets. Therefore, a new DPD method is proposed for moving targets with low computational complexity. First, using a proposed cost function, the position information is obtained from the received array signals directly, which enhances the accuracy of localization. Second, utilizing the method of successional difference the velocity is extracted, which avoid the multi‐dimensional grid search and reduces the computational complexity. Simulation results demonstrate that the proposed method reduces the computational complexity greatly and outperforms the conventional methods.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/e4bb6d85be2f495d9ff0a1401258b56d Zobrazit plný text záznamu Plný text View record in DOAJ