As is well known, nonuniform linear arrays have significant advantages in array aperture
and degrees of freedom over uniform linear arrays. Using their difference coarrays …

The Cramér-Rao Bound (CRB) for direction of arrival (DOA) estimation has been extensively
studied over the past four decades, with a plethora of CRB expressions reported for various …

As a generalized coprime array structure, the coprime array with displaced subarrays
(CADiS) allows a large minimum inter-element spacing by introducing a specific …

Existing sparse array (SA) geometries, such as coprime and nested arrays, can be regarded
as a concatenation of two uniform linear arrays (ULAs). Such arrays lead to a significant …

In this paper, we develop a general framework of multi-frequency sparse array to estimate
the direction-of-arrival (DOA) of a significantly higher number of targets than the number of …

Owing to the large degrees of freedom and reduced mutual coupling by generating
difference coarrays, nonuniform linear arrays have aroused great interest in direction of …

Antenna arrays are able to improve the directivity performance and reduce the cost of
wireless communication systems. However, how to reduce the maximum sidelobe level …

Recently, a uniform linear array (ULA) fitting (UF) principle is proposed for sparse array (SA)
design using pseudo-polynomial equations. Typically, it is verified that the designed SAs via …

Based on the high-order difference co-array concept, an enhanced four-level nested array
(E-FL-NA) is first proposed, which optimizes the consecutive lags at the fourth-order …

Sparse linear arrays (SLAs) can be designed in a systematic way, with the ability for
underdetermined DOA estimation where a greater number of sources can be detected than …