Software-defined radio (SDR) is a radio communication system where components that have been typically implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a personal computer or embedded system.[1] While the concept of SDR is not new, the rapidly evolving capabilities of digital electronics render practical many processes which used to be only theoretically possible.
https://en.wikipedia.org/wiki/Software-defined_radio
SDR changes everything when it comes to radio and is the future of video.
We are having a meetup every Saturday at 4Pm at the Hackerdojo in Santa Clara, CA.
https://www.meetup.com/Fly-by-SDR-Hacker-Club-Prep-for-Darpa-SDR-Hackfest/
High Definition, Low Delay, SDR-Based Video Transmission in UAV Applications
Abstract
Integrated RF agile transceivers are not only widely employed in software-defined radio (SDR)1 architectures in cellular telephone base stations, such as multiservice distributed access system (MDAS) and small cell, but also for wireless HD video transmission for industrial, commercial, and military applications, such as unmanned aerial vehicles (UAVs). This article will examine a wideband wireless video signal chain implementation using the AD9361/AD93642,3 integrated transceiver ICs, the amount of data transmitted, the corresponding RF occupied signal bandwidth, the transmission distance, and the transmitter’s power. It will also describe the implementation of the PHY layer of OFDM and present hopping frequency time test results to avoid RF interference. Finally, we will discuss the advantages and disadvantages between Wi-Fi and the RF agile transceiver in wideband wireless applications.
http://www.analog.com/en/analog-dialogue/articles/high-definition-low-delay-sdr-based-video-transmission-in-uav-applications.html
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