Abstract: Most existing fault diagnosis methods in antenna arrays assume that a reference pattern of a fault-free array (healthy array) is available for fault detection. A reference-free diagnosis ...

Dec. 29, 2025 Snopes reporters worked hard in 2025 to investigate wide-ranging rumors. Here are the news stories that were most popular with our readers this year. Dec. 26, 2025 There is at least one ...

Logbook noun, /lɑɡ bʊk/: A book in which measurements from the ship's log are recorded, along with other salient details of the voyage. Logbook is an extensible Java library to enable complete request ...