A New Fourth-Order Sparse Array Generator Based on Sum-Difference Co-Array Analysis
Haodong Guo, Hua Chen, Hongguang Lin, Wei Liu, Qing Shen, Gang Wang
Abstract
In this paper, based on sum-difference co-array analysis, a new fourth-order sparse array called sum-difference-FODC (SD-FODC) is proposed, allowing the construction of a fourth-order DCA with long consecutive lags using the continuous segments in the second-order DCA and SCA of the original array. It has a closed-form expression for sensor positions that can be generated by two arbitrary nonuniform linear arrays (NLAs) called generators. If the second-order SCA and DCA of the generators have long consecutive segments, the designed fourth-order sparse array can achieve a large number of uDOFs. Numerical results are provided to demonstrate the superior performance of the proposed design.
BibTeX
@inproceedings{icassp2024_anewfourthorders,
title = {A New Fourth-Order Sparse Array Generator Based on Sum-Difference Co-Array Analysis},
author = {Haodong Guo and Hua Chen and Hongguang Lin and Wei Liu and Qing Shen and Gang Wang},
booktitle = {ICASSP 2024},
year = {2024}
}