Abstract: —Frequency Diverse Array (FDA) radar uses small frequency offsets across antenna array elements to generate a range-angle dependent beampattern. A well-known limitation, however, is that the ...

Abstract: Radio environment map (REM) provides valuable information about radio characteristics in a geographical area and is widely used in spectrum sensing and communications. REM reconstruction can ...

Astronomers have captured the central region of our Milky Way in a striking new image, unveiling a complex network of filaments of cosmic gas in unprecedented detail. Obtained with the Atacama Large ...