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2019 | OriginalPaper | Chapter

Two-Dimensional Super-Resolution Direction Finding Algorithm for Wideband Chirp Signals

Authors : Baoyu Guo, Jiaqi Zhen

Published in: Advanced Hybrid Information Processing

Publisher: Springer International Publishing

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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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Metadata
Title
Two-Dimensional Super-Resolution Direction Finding Algorithm for Wideband Chirp Signals
Authors
Baoyu Guo
Jiaqi Zhen
Copyright Year
2019
DOI
https://doi.org/10.1007/978-3-030-19086-6_17

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