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Software-defined radio (SDR) is a radio communication system where components that conventionally have been implemented in analog hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a computer or embedded system. [1]
The Software Communications Architecture (SCA) is an open architecture framework that defines a standard way for radios to instantiate, configure, and manage waveform applications running on their platform. The SCA separates waveform software from the underlying hardware platform, facilitating waveform software portability and re-use to avoid ...
The Forum published its first technical report in 1997, outlining the current state of the art in software defined radio. [4] This document included a reference application framework for software defined radios, referred to as the Software Radio Architecture, that was developed based on the existing SPEAKeasy Architecture. [5]
The OpenHPSDR (High Performance Software Defined Radio) project dates from 2005 when Phil Covington, Phil Harman, and Bill Tracey combined their separate projects to form the HPSDR group. [1] It is built around a modular concept which encourages experimentation with new techniques and devices (e.g. SDR , Envelope Elimination and Restoration ...
The term radio receiver is understood in this article to mean any device which is intended to receive a radio signal in order to generate useful information from the signal, most notably a recreation of the so-called baseband signal (such as audio) which modulated the radio signal at the time of transmission in a communications or broadcast system.
GNU Radio is a free software development toolkit that provides signal processing blocks to implement software-defined radios and signal processing systems. It can be used with external radio frequency (RF) hardware to create software-defined radios, or without hardware in a simulation-like environment. It is widely used in hobbyist, academic ...
Software-defined radio, enabling computers to tune a wide spectrum of radio frequencies, using software instead of hardware for modulation and demodulation; Sony Dream Robot, later dubbed QRIO; Sparse distributed representation, in machine intelligence; Standard dimension ratio in pipe engineering
Universal Software Radio Peripheral (USRP) is a range of software-defined radios designed and sold by Ettus Research and its parent company, National Instruments. Developed by a team led by Matt Ettus , the USRP product family is commonly used by research labs, universities, and hobbyists.