Abstract: Time difference of arrival (TDOA) and direction of arrival (DOA) are, respectively, applied to detect partial discharge (PD) target with ultrasonic signal. The reason why these two methods ...

Abstract: This letter introduces a new refined optimization strategy to achieve the pencil/shaped beam pattern synthesis of uniform amplitude rotated linear aperiodic array including the mutual ...

The area, north of Tucson, is near Guthrie’s home. Authorities have not released what they are searching for, but urged those in the area to follow traffic laws and exercise caution around law ...

Anna Schecter is the senior coordinating producer for CBS News and Stations' Crime and Public Safety Unit, based in New York. Senior producer, CBS News Investigative Unit Pat Milton, an award-winning ...

In a video shared Monday, the "TODAY" show co-anchor said the family believes Nancy Guthrie is "still out there" and is "at an hour of desperation." Billboards seeking tips in the possible abduction ...