Cost-Effective Allan Deviation Measurement in SDRs Using Integrated ADC

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a novel technique for measuring the Allan deviation of the internal oscillator within a software-defined radio (SDR). This modified version of the standard double mixer time difference (DMTD) method utilizes the SDR's analog-to-digital converter (ADC) to eliminate the need for expensive and specialized equipment. By analyzing the phase of the sampled signal through the ADC, the Allan deviation can be determined, providing insight into the stability of the oscillator. The paper demonstrates the effectiveness of this method through experiments conducted on five SDR platforms. The Pluto SDR and Wombat showed low and consistent Allan Deviation measurements, with the RTL-SDR performing better than expected.

Original languageEnglish
Title of host publication2024 IEEE Radio and Wireless Week, RWW 2024 - 2024 IEEE Radio and Wireless Symposium, RWS 2024
PublisherInstitute of Electrical and Electronics Engineers
Pages130-133
Number of pages4
ISBN (Electronic)9798350340457
DOIs
Publication statusPublished - 21 Feb 2024
Event2024 IEEE Radio and Wireless Symposium, RWS 2024 - San Antonio, United States
Duration: 21 Jan 202424 Jan 2024

Publication series

NameIEEE Radio and Wireless Symposium, RWS
ISSN (Print)2164-2958
ISSN (Electronic)2164-2974

Conference

Conference2024 IEEE Radio and Wireless Symposium, RWS 2024
Country/TerritoryUnited States
CitySan Antonio
Period21/01/2424/01/24

Keywords

  • Allan Variance
  • Analog to Digital Converter
  • Clock Offset
  • Clock Stability
  • Double Mixer Time Difference
  • Software Defined Radio

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