A flexible BIST strategy for SDR transmitters

Emanuel Dogaru 1 Filipe Vinci dos Santos 1 William Rebernak 2
1 Chaire Conception Analogique Avancée Thales/Supélec
Thales Communications [Colombes], E3S - Supélec Sciences des Systèmes [Gif-sur-Yvette]
2 Thales Communications [Colombes]
Abstract : Software-defined radio (SDR) development aims for increased speed and flexibility. The advent of these system level requirements on the physical layer (PHY) access hardware is leading to more complex architectures, which together with higher levels of integration pose a challenging problem for product testing. For radio units that must be field-upgradeable without specialized equipment, Built-in Self-Test (BIST) schemes are arguably the only way to ensure continued compliance to specifications. In this paper we introduce a loopback RF BIST technique that uses Periodically Nonuniform Sampling (PNS2) of the transmitter (TX) output to evaluate compliance to spectral mask specifications. No significant hardware costs are incurred due to the re-use of available RX resources (I/Q ADCs, DSP, GPP, etc.). Simulation results of an homodyne TX demonstrate that Adjacent Channel Power Ratio (ACPR) can be accurately estimated. Future work will consist in validating our loopback RF BIST architecture on an in-house SDR testbed.
Keywords : loopback RF BIST technique physical layer access hardware product testing software defined radio spectral mask specifications Built-in self-test Computer architecture Estimation Finite impulse response filters Radio frequency Standards BIST In-Field Test Mixed-Signal/RF Test Periodically Nonuniform Sampling flexible BIST strategy built in self test adjacent channel power ratio SDR transmitters software radio signal sampling radio transmitters built-in self test Software Radios Spectral Mask Estimation Subsampling
Type de document :
Communication dans un congrès
2014 Design, Automation & Test in Europe Conference & Exhibition (DATE) , Mar 2014, Dresden, Germany. pp.1 - 6, 2014, 2014 Design, Automation & Test in Europe Conference & Exhibition (DATE) 〈10.7873/DATE2014.383〉
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Contributeur : Emanuel Dogaru <>
Soumis le : jeudi 12 juin 2014 - 15:13:42
Dernière modification le : jeudi 29 mars 2018 - 11:06:06
Document(s) archivé(s) le : vendredi 12 septembre 2014 - 11:26:18

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Emanuel Dogaru, Filipe Vinci dos Santos, William Rebernak. A flexible BIST strategy for SDR transmitters. 2014 Design, Automation & Test in Europe Conference & Exhibition (DATE) , Mar 2014, Dresden, Germany. pp.1 - 6, 2014, 2014 Design, Automation & Test in Europe Conference & Exhibition (DATE) 〈10.7873/DATE2014.383〉. 〈hal-01005401〉

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