DOAJ Open Access 2019

DOA Estimation of Two-Dimensional Coherently Distributed Sources Based on Spatial Smoothing of Uniform Rectangular Arrays

Tao Wu Yiwen Li Xiaofeng Zhang Yijie Huang Qingyue Gu +1 lainnya

Abstrak

Aiming at the direction-of-arrival (DOA) estimation of two-dimensional (2D) coherently distributed (CD) sources which are coherent with each other, we explore the propagator method based on spatial smoothing of a uniform rectangular array (URA). The rotational invariance relationships with respect to the nominal azimuth and nominal elevation are obtained under the small angular spreads assumption. A propagator operator is constructed through spatial smoothing of sample covariance matrices firstly. Then, combination of propagator and identical matrix is divided according to rotational operators, and the nominal angles can be obtained through eigendecomposition lastly. Realizing angle matching automatically, the proposed method can estimate multiple DOAs of 2D coherent CD sources without spectral peak searching and prior knowledge of deterministic angular signal distribution function. Simulations are conducted to verify the effectiveness of the proposed method.

Topik & Kata Kunci

Electrical engineering. Electronics. Nuclear engineering Cellular telephone services industry. Wireless telephone industry

Penulis (6)

Tao Wu

Yiwen Li

Xiaofeng Zhang

Yijie Huang

Qingyue Gu

Chaoqi Fu

Format Sitasi

APA MLA BibTeX

Wu, T., Li, Y., Zhang, X., Huang, Y., Gu, Q., Fu, C. (2019). DOA Estimation of Two-Dimensional Coherently Distributed Sources Based on Spatial Smoothing of Uniform Rectangular Arrays. https://doi.org/10.1155/2019/4816183

Akses Cepat

PDF tidak tersedia langsung

Cek di sumber asli →

Lihat di Sumber doi.org/10.1155/2019/4816183

Informasi Jurnal

Tahun Terbit: 2019
Sumber Database: DOAJ
DOI: 10.1155/2019/4816183
Akses: Open Access ✓