IEEE

2-D DOA Estimation with Circular Arrays Based on the Fourth-Order Difference Co-Array

Abstract: In this paper, two-dimensional (2-D) direction of arrival estimation based on the fourth-order difference co-array (FODCA) is studied. By analyzing the virtual sensor positions in FODCA, the ...
eLife

REM sleep prefrontal high-frequency oscillation chains mediate distinct cortical – hippocampal reactivation patterns compared to NREM sleep

REM (rapid eye movement) and non-REM (NREM) sleep stages contribute to systems memory consolidation in hippocampal-cortical circuits. However, the physiological mechanisms underlying REM memory ...

Megawatt structured light arrives with 3,070 optical vortices in one array

Optical vortices—light beams carrying orbital angular momentum (OAM)—are characterized by helical wavefronts and phase ...

A long-term and scalable system to record from neural organoids

Neural organoids have been heralded as having huge potential for advancing our knowledge of the brain in several fields. These include exploring the responses of brain tissue to drugs, investigating ...
IEEE

A Third-Order Sparse Array Design Scheme Based on Second-Order Sum-Difference Co-Array Analysis

Abstract: Recently, non-conventional odd-order statistics, especially the third-order cumulants (TOCs), have been introduced to direction-of-arrival (DOA) estimation based on third-order nested array ...