21 October 2016 A hardware-efficient DOA estimation method based on digital channelization receiver
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In this paper, we present a novel hardware-efficient direction of arrival (DOA) estimation method based on digital channelized receiver. The proposed method splits the wideband array output into multiple frequency sub-channels and estimates the signal parameters using digital channelization receiver. Based on the accurate signal parameters estimation, signals with different bandwidths are isolated reasonably. Different DOA estimation methods are used to signals with different bandwidths. The proposed channelization based method can improve the output signal noise ratio (SNR). It outperforms those conventional DOA estimation methods on estimation accuracy, especially in real environment. Simulations are presented to demonstrate the performance. The results verify the effectiveness of the proposed method.
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Rui Guo, Rui Guo, Xiaolei Fan, Xiaolei Fan, Yue Zhang, Yue Zhang, Qianqiang Lin, Qianqiang Lin, Zengping Chen, Zengping Chen, } "A hardware-efficient DOA estimation method based on digital channelization receiver", Proc. SPIE 9993, Millimetre Wave and Terahertz Sensors and Technology IX, 99930L (21 October 2016); doi: 10.1117/12.2241236; https://doi.org/10.1117/12.2241236

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