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Conference papers
A flexible BIST strategy for SDR transmitters
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
Cited literature [16 references]
https://hal-supelec.archives-ouvertes.fr/hal-01005401
Contributor : Emanuel Dogaru Connect in order to contact the contributor
Submitted on : Thursday, June 12, 2014 - 3:13:42 PM
Last modification on : Tuesday, June 15, 2021 - 4:25:24 PM
Long-term archiving on: : Friday, September 12, 2014 - 11:26:18 AM
Contributor : Emanuel Dogaru Connect in order to contact the contributor
Submitted on : Thursday, June 12, 2014 - 3:13:42 PM
Last modification on : Tuesday, June 15, 2021 - 4:25:24 PM
Long-term archiving on: : Friday, September 12, 2014 - 11:26:18 AM
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LMS-Based_RF_BIST_Architecture...
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