Abstract: Applying Orthogonal Frequency Division Multiplexing (OFDM) signals to the near-field radar imaging system, i.e., realizing the communication function and the radar detection imaging function ...

Abstract: Direct current (DC) is added into intensity modulation and direct detection (IM/DD) signals in time domain to make most negative signals be positive in DC biased-optical orthogonal frequency ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. Editor’s note: Clive Thompson answered readers’ questions about this article on ...

DISA officials are working on a new program to replace the Global Command and Control System. The Net-Enabled Command Capability (NECC) will provide web-based command and control throughout the ...

Ukraine war latest: Kremlin threatens foreign fighters in Ukraine after Moscow's troops 'hear them on frontline' The Kremlin claims its troops are constantly hearing foreigners on the frontline.

It's been quite a ride. After eight months documenting an incredible transition of power, and perhaps an even more incredible shift in how power is wielded, we are retiring our US election blog. In ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...