Abstract: Dynamic beam hopping (DBH) is a crucial technology for adapting to the flexibility of service configurations in multi-beam satellite (MBS) communications. To solve the problem that the ...

T cells are white blood cells that are important for adaptive immunity. They have unique cell surface receptors that are generated by randomly assorting genes. These receptors allow T cells to sense ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Zoe Vanderweide Zoe Vanderweide is a writer focused on style and accessories.

Abstract: Passive radar systems utilise existing transmitter infrastructure to perform target detections. The matched filter is obtained by recording a line-of-sight copy of the transmitted waveform, ...

Digital terrestrial television broadcasting is already a reality in many European countries and around the world. The terrestrial digital video broadcasting (DVB–T) standard is gaining ground as an ...

Nick’s Signal Spot is a new feature in which Nick Langan explores RF signals, propagation, new equipment and related endeavors. For VHF FM radio and TV long-distance signal reception enthusiasts, or ...