Phase Coherent RF Platforms | GRCon2020 by Bobby Smith

Originally presented at GNU Radio Conference - September 15, 2020

Also, see our White Paper on the subject:

Phase-coherent operation is the ability of an RF system’s receive and/or transmit channels to be both time- and phase-aligned, where the signals have a defined and constant relative phase relationship. Applications including MIMO, beamforming, and direction finding require this alignment as well as a known phase relationship between each RF input or output. Typically, a multichannel software defined radio (SDR) transceiver is leveraged to provide time- and phase-aligned digital radio sample streams which can then be processed by a host system to extract information such as angle of arrival of an RF signal of interest.