Software-defined radio

Software-defined radio

Radio communication system implemented by means of software

Software-defined radio is a field at the intersection of several technological domains including radio, digital signal processing, integrated circuit design, and software-based control systems, among others.

Overview

The SDR Forum (now known as the Wireless Innovation Forum) and the Institute of Electrical and Electronic Engineers (IEEE) P1900.1 group formulated a definition of software-defined radio:

Radio in which some or all of the physical layer functions are software defined

Traditional radio hardware is limited in its capabilities and can only be modified using physical intervention with the radio device. However, in software-defined radio, antennas, receivers, signal processing systems, and other components can be adjusted via a software control layer.

Hardware devices could include field programmable gate arrays (FPGA), digital signal processors (DSP), general purpose processors, systems on a chip (SoC), and other types of programmable processors. The use of these technologies makes it possible to add wireless capabilities and features to existing radio systems without the need for new hardware.

Via the Wireless Innovation Forum, an industry group focused on SDR and related technologies.
SDR software and companies

There are a number of software packages which interact with radio hardware as part of a software-defined radio system. GNU Radio is a popular open source platform for software-defined radio applications.

SDR companies

Timeline

People

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Role
LinkedIn

Further reading

Title
Author
Link
Type
Date

Cognitive Radio for Public Safety

Web

February 11, 2011

Software Defined Radio - an overview | ScienceDirect Topics

Web

Software defined radio (SDR) foundations, technology tradeoffs: A survey

Rahul Krishnan, R. Ganesh Babu, S. Kaviya, N. Pragadeesh Kumar, C. Rahul, S. Santhana Raman

Conference

September 2017

Documentaries, videos and podcasts

Title
Date
Link

5 Cool Things You Can Do With An RTL SDR Receiver

October 26, 2017

Chapter 01 Software Defined Radio SDRs || Introduction and basics of SDR || Practical case studies.

October 29, 2019

How It's Made - Software Defined Radio - SDRPlay

November 9, 2020

Introduction to Software Defined Radio

April 17, 2020

Software Defined Radio

May 7, 2019

Software Defined Radio

January 10, 2019

Software Radio Basics

August 5, 2014

The Beginner's Guide To Software Defined Radio RTL-SDR

April 5, 2018

Companies

Company
CEO
Location
Products/Services

References

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