IEEE

Target Elevation Estimation for Passive Radar Based on Double-Layer Uniform Circular Array

Abstract: This article investigates the target elevation estimation problem for passive radar based on a double-layer uniform circular array (DUCA). First, we propose a calibration method for the DUCA ...
IEEE

Phased Array Featuring Independent, Simultaneous Beamsteering for Widely Separated mmWave Dual-Band Using Compact, Low-Loss, Selective Coupler

Abstract: This article introduces a new concept of a phased array that can independently and simultaneously perform beamsteering across two frequency ranges: a lower band encompassing 24 GHz and a ...
digitalcameraworld

Olympic photographers are using a 160-year-old technique to create art on ice, freezing ice skaters in ethereal photographs

The 2026 Winter Olympics have brought a number of legendary athletes to compete on international ice – and a number of inspirational sports photographers along with them. One technique in particular ...
AOL.co.uk

South Korea woman, 21, accused of using ChatGPT to plan double murders

A woman in South Korea allegedly used the AI platform ChatGPT to plan the murder of two men, police said. The 21-year-old woman, surnamed Kim, is accused of killing two men in separate incidents using ...