An effective sparse array extension method for maximizing the number of consecutive lags
in the fourth-order difference co-array is proposed, leading to a novel enhanced sparse …

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 …

An expanding and shift scheme for efficient fourth-order difference coarray construction is
proposed. It consists of two sparse subarrays, where one of them is modified and shifted …

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

A coprime array consists of two uniform linear subarrays that construct an effective difference
co-array with certain desirable characteristics. In this paper, we propose a generalized …

We present novel generalized non-redundant sparse array design strategies that achieve
the highest possible number of degrees-of-freedom (DOFs) for direction-of-arrival (DOA) …

Array structures based on the high-order difference co-array concept provide a large number
of degrees of freedom, but are typically difficult to design under multiple optimality criteria. In …

Recently, the concept of the difference and sum co-array (DSCa) has attracted much
attention in array signal processing due to its high degree of freedom (DOF). In this paper …

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 array processing, mutual coupling between sensors has an adverse effect on the
estimation of parameters (eg, DOA). Sparse arrays such as nested arrays, coprime arrays …