The new-formed array is hole-free and can achieve a large consecutive range in its fourth-order difference coarray. By analyzing its second-order sum coarray ...

The new-formed array is hole-free and can achieve a large consecutive range in its fourth-order difference coarray. By analyzing its second-order sum coarray ...

These structures provide a higher number of unique co-arrays but have holes, with the most DOFs provided by the E-FL-NA. The second type having the hole-free ...

The expanding and shift scheme with two nested arrays (EAS-NA-NA) is easy to construct and effective for achieving large number of degrees of freedom (DOFs).

An effective structure extension based on two-level nested arrays is proposed, increasing the number of consecutive lags in the fourth-order difference ...

Oct 22, 2024 · In the present study, the generalized compressed nested array (GCNA) is proposed to improve the fourth-order cumulant-based direction of ...

Feb 22, 2022 · This paper applies the nested array to the hybrid analog-digital structure and proposes the enhanced BSA (EBSA) for DOA estimation.

For sparse arrays, a difference co-array operation is normally performed, generating a significantly larger virtual co-array for underdetermined DOA estimation, ...

A novel sparse reconstruction method is proposed for DOA estimation of a mixture of coherent and uncorrelated targets using active nonuniform arrays [47], where ...

Oct 19, 2023 · Many sparse arrays based on the fourth-order difference coarray (FODCA) for improving DOA estimation performance have been proposed. With adding ...