Sparse arrays designed based on fourth-order difference co-array (DCA) can achieve significantly higher uniform degrees-of-freedom (uDOFs). However, most existing fourth-order sparse arrays do not ...

Identifying prime numbers among small integers is relatively simple, but the task becomes Herculean with large numbers. This complexity has pushed researchers to develop more sophisticated methods ...

In this paper, we propose co-prime arrays for effective direction-of-arrival (DOA) estimation. To fully utilize the virtual aperture achieved in the difference co-array constructed from a co-prime ...