Research Article
DOA Estimation for Far-Field Sources in Mixed Signals with Gain-Phase Error Array
@INPROCEEDINGS{10.1007/978-3-319-78139-6_5, author={Jiaqi Zhen and Yanchao Li}, title={DOA Estimation for Far-Field Sources in Mixed Signals with Gain-Phase Error Array}, proceedings={Communications and Networking. 12th International Conference, ChinaCom 2017, Xi’an, China, October 10-12, 2017, Proceedings, Part II}, proceedings_a={CHINACOM}, year={2018}, month={4}, keywords={Direction of arrival Gain-phase error Far-field signals Near-field signals Wideband signals}, doi={10.1007/978-3-319-78139-6_5} }- Jiaqi Zhen
Yanchao Li
Year: 2018
DOA Estimation for Far-Field Sources in Mixed Signals with Gain-Phase Error Array
CHINACOM
Springer
DOI: 10.1007/978-3-319-78139-6_5
Abstract
Most of the super-resolution direction finding algorithms often require the accurate array manifold, but the gain-phase of the channels is often inconsistent in practical applications, which will lead to the estimation performance deterioration. Therefore, a new method for direction of arrival (DOA) estimation of far-field sources in mixed far-field and near-field signals with gain-phase error array is presented. First, fast Fourier transformation (FFT) is performed on the received data, then matrix transformation is used for simplifying the spectrum function, at last, DOA of far-field signals can be acquired by finding the roots of corresponding polynomial. There is no need to calibrate the array, simulations have shown that the proposed algorithm is effective.