Software-defined radio

A software-defined radio (SDR) is a radio communication system where components historically implemented in hardware (for example, mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a personal computer or embedded system.

Several people working on software-defined radios have released open-source designs (open hardware).

Further reading

• GNURadio wiki
• Wikipedia: GNU Radio
• Wikipedia: software-defined radio
• HackRF, an open source SDR platform by Michael Ossmann [1] [2]
• Signal Identification Guide wiki
• Some of the most cutting-edge work in software defined radio is being done by radio amateurs [3] [4] [5]
• High Performance Software Defined Radio: An Open Source Design [6] [7]