Work

Far-Field Calibration of Automotive Millimeter Wave Radar via Near-Field Implementation

Year: 2025

Type: article

Abstract: To enhance direction of arrival (DOA) estimation accuracy, this paper proposes a low-cost method for calibrating far-field steering vectors of large aperture millimeter wave radar (mmWR). To this end, we first derive the steering vectors with amplitude and phase errors, assuming that mmWR works in the time-sharing mode. Then, approximate relationship between the near-field calibration steering vector and the far-field calibration steering vector is analyzed, which is used to accomplish the mapping between the two of them. Finally, simulation results verify that the proposed method can effectively improve the angle measurement accuracy of mmWR with existing amplitude and phase errors.

Source: Journal of Systems Engineering and Electronics

DOI: 10.23919/jsee.2025.000006

Authors: Jinghu Sun, Jiahuan Liu, Wenqiang Wei, Xianxiang Yu, Guolong Cui, Xiuyin Zhang

Institutions: South China University of Technology, University of Electronic Science and Technology of China

Language: English

Topic: Radar Systems and Signal Processing

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4409014713

FWCI: 0.782

Cites: 31

Cited by: 2

Related to: 10