IEEE

A Novel Construction of Two-Dimensional Z-Complementary Array Code Sets Based on Extended Boolean Functions

Abstract: Two-dimensional (2-D) array sets with good 2-D correlation properties have received considerable attention in wireless communication systems. This paper focuses on 2-D Z-complementary array ...
IEEE

Non-Ideal Switching-Based Design of Directional Time-Modulated Linear Antenna Arrays for Beam Steering in Arbitrary, Multiple and User-Defined Directions Using Cultural Algorithms

Abstract: This paper proposes a trapezoidal pulse-based ON-OFF switching approach for the optimum beamforming performance in a time-modulated linear antenna array (TMLAA). The Fourier series property ...

Duolingo Ramps AI Investment as User Count Soars

Duolingo (NASDAQ: DUOL) held its fourth-quarter 2024 earnings call on February 27, 2025, reporting what CEO Luis von Ahn ...
briefly

ActionSA Welcomes Two New Groups, Pushing Councillor Count to Nearly 150

ActionSA president Herman Mashaba announced that two political groups have merged with his party The move adds seven councillors, bringing ActionSA’s national total to nearly 150 Mashaba also hinted ...