DocumentCode :
129562
Title :
A flexible BIST strategy for SDR transmitters
Author :
Dogaru, Emanuel ; Vinci Dos Santos, Filipe ; Rebernak, William
Author_Institution :
Dept. of Adv. Analog Design, SUPELEC, Gif-sur-Yvette, France
fYear :
2014
fDate :
24-28 March 2014
Firstpage :
1
Lastpage :
6
Abstract :
Software-defined radio (SDR) development aims for increased speed and flexibility. The advent of these systemlevel 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 :
built-in self test; radio transmitters; signal sampling; software radio; SDR transmitters; adjacent channel power ratio; built in self test; flexible BIST strategy; loopback RF BIST technique; periodically nonuniform sampling; 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; Software Radios; Spectral Mask Estimation; Subsampling;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Design, Automation and Test in Europe Conference and Exhibition (DATE), 2014
Conference_Location :
Dresden
Type :
conf
DOI :
10.7873/DATE.2014.383
Filename :
6800584
Link To Document :
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