Research Article
Two-Dimensional Super-Resolution Direction Finding Algorithm for Wideband Chirp Signals
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@INPROCEEDINGS{10.1007/978-3-030-19086-6_17, author={Baoyu Guo and Jiaqi Zhen}, title={Two-Dimensional Super-Resolution Direction Finding Algorithm for Wideband Chirp Signals}, proceedings={Advanced Hybrid Information Processing. Second EAI International Conference, ADHIP 2018, Yiyang, China, October 5-6, 2018, Proceedings}, proceedings_a={ADHIP}, year={2019}, month={5}, keywords={Wideband signals Chirp signals Direction of Arrival Fractional Fourier Transform}, doi={10.1007/978-3-030-19086-6_17} }- Baoyu Guo
Jiaqi Zhen
Year: 2019
Two-Dimensional Super-Resolution Direction Finding Algorithm for Wideband Chirp Signals
ADHIP
Springer
DOI: 10.1007/978-3-030-19086-6_17
Abstract
Conventional direction finding algorithms for wideband signal need to preliminarily estimate the Direction of Arrival (DOA) and power of the noise roughly, and it has large focusing error. In order to solve these problems, a super-resolution direction finding algorithm for two dimensional (2-D) wideband chirp signals is proposed, the Fractional Fourier Transform (FRFT) is applied to focus the energy of the signals in every frequency by the rotational characteristic of FRFT, then algorithm for narrowband signals is used to estimate the DOA, computer simulation results prove the effective of the algorithm.
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