Recently, nested and coprime arrays have attracted considerable interest due to their
capability of providing increased array aperture, enhanced degrees of freedom (DOFs), and …

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 …

In this work, we present a new coprime array structure termed thinned coprime array (TCA),
which exploits the redundancy in the structure of existing coprime array and achieves the …

In the practical radar with multiple antennas, the antenna imperfections degrade the system
performance. In this paper, the problem of estimating the direction of arrival (DOA) in a …

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

In this letter, we propose a generalized nested array (GNA) with two flexible co-prime factors
for enlarging the inter-element spacing of two concatenated uniform linear subarrays. It is …

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 …

Generally, massive multiple-input multiple-output (MIMO) system incorporates hundreds of
antennas at the base station for various attractive merits, whereas severe mutual coupling …