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 ...

Abstract: Nowadays, smart speech devices have been widely used for human-computer interaction. However, in many environments, the reverberation caused by the multi-path effect can seriously affect the ...

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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 ...

Scottish Labour have drawn up a league table to shame Holyrood candidates who are not working hard enough. The list of grafters has also been circulated amid claims some MPs are spending too much time ...