TY - GEN
T1 - Cost-Effective Allan Deviation Measurement in SDRs Using Integrated ADC
AU - Wiegelmann, Alastair
AU - Drake, Samuel
AU - Rehman, Saeed Ur
AU - Chen, Shengjian Jammy
PY - 2024/2/21
Y1 - 2024/2/21
N2 - 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.
AB - 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.
KW - Allan Variance
KW - Analog to Digital Converter
KW - Clock Offset
KW - Clock Stability
KW - Double Mixer Time Difference
KW - Software Defined Radio
UR - http://www.scopus.com/inward/record.url?scp=85186761867&partnerID=8YFLogxK
U2 - 10.1109/RWS56914.2024.10438558
DO - 10.1109/RWS56914.2024.10438558
M3 - Conference contribution
AN - SCOPUS:85186761867
T3 - IEEE Radio and Wireless Symposium, RWS
SP - 130
EP - 133
BT - 2024 IEEE Radio and Wireless Week, RWW 2024 - 2024 IEEE Radio and Wireless Symposium, RWS 2024
PB - Institute of Electrical and Electronics Engineers
T2 - 2024 IEEE Radio and Wireless Symposium, RWS 2024
Y2 - 21 January 2024 through 24 January 2024
ER -