Silicon Labs adds Bluetooth 5.1 location services to its Wireless Gecko line of connectivity software and SoCs for the Internet of Things. The Bluetooth 5.1 direction finding feature allows devices to ...

Infrasound refers to sound frequencies below the threshold of human hearing, around 20 Hz or less. There are a variety of natural sources of infrasonic emissions, including thunderstorms, avalanches, ...

The new direction feature of Bluetooth allows devices to locate items down to the centimeter level in settings including museums, retail stores, and the home. (Bluetooth SIG Photo) The group ...

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Bluetooth already knows how to find phones, and location accuracy is fairly decent. A planned update to Bluetooth, however, will give the short-range radio tech the power to pinpoint devices’ ...

THE appearance of the fourth edition of this book will do much to dispel the impression, prevalent in some quarters, that the technique of radio direction finding has been rendered obsolete by the ...

SAN ANTONIO -- Nov. 19, 2019 -- Mitigating ongoing threats to national security requires timely intelligence data, including signals intelligence (SIGINT) obtained through electronic surveillance.

WHEN the first edition of this book appeared in 1922, interest in wireless direction-finding was confined to a comparatively few individuals who were engaged either in the practice of the art for ...