Abstract: With the growth of the number of elderly people, fall detection based on radio frequency signals for those vulnerable groups emerged. In radar-based fall detection methods, different ...
Abstract: Free space optics (FSO) provides high-capacity optical wireless communications. To maintain an FSO link with a moving node, a beam should be steered toward it. As the FSO link distance gets ...
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Map shows US allies in range of Chinese missiles
A Newsweek map shows that United States allies in the western Pacific—Japan, South Korea and the Philippines—are within range of Chinese missiles as tensions rise in the region over territorial ...
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