Abstract: A new two-dimensional spatial spectral estimation direction finding method based on L-shaped array and time modulation theory is proposed. The main principle of this method is to generate a ...
Abstract: A single-channel direction finding method is proposed with the time-modulated array (TMA), by comparing the amplitudes of generated harmonics. After periodic modulation by TMA, the magnitude ...
Deep inside South Africa’s Wonderstone Silver Mine, miners have been finding strange grooved spheres for decades. What makes them unsettling isn’t just their shape, but their age the rock they’re ...
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