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Digital Radiometer for Traceable Spectrum Sensing



Xifeng Lu, Dazhen Gu, Daniel G. Kuester


This paper describes a metrology instrument designed for detecting noise and interference in digital communications. A quadrature detector downconverts in-phase (I) and quadrature (Q) channels, which are each digitized at high speed. This architecture makes the upper and lower signal sidebands separable by digital processing, and with spectral resolution that is unprecedented in conventional analog detection. Several considerations for design, system characterization and calibrations are discussed.
Proceedings Title
Conference on Precision Electromagnetic Measurements (CPEM)
Conference Dates
August 24-28, 2020
Conference Location
Denver, CO


Lu, X. , Gu, D. and Kuester, D. (2020), Digital Radiometer for Traceable Spectrum Sensing, Conference on Precision Electromagnetic Measurements (CPEM), Denver, CO (Accessed May 28, 2024)


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Created September 13, 2020, Updated October 5, 2020