Abstract: Existing approaches to overlay dynamic spectrum access (DSA) typically enable spectrum sharing only when the primary transmitter is inactive. However, accurately geolocating vacant bands is ...

Low-frequency signals travel further and penetrate obstacles better than higher-frequency bands, making them ideal for agriculture, mining, energy and environmental monitoring. CSIRO's on-farm trials ...

Here's the assembly instructions for my 3D printed Arduino / Python controlled animatronic mouth! #animatronics #arduino #3dprinting #python #robotics #makerproject #diyrobot #mechanism ...

Abstract: Radar signal frequency spectrum is a key parameter for radar systems, which decides the upper limit of the performance of a radar system. However, when a radar signal propagates through the ...