liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Live Demonstration of Mismatch Compensation for Time-Interleaved ADCs
Linköping University, Department of Electrical Engineering, Electronics System. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Electronics System. Linköping University, The Institute of Technology.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The purpose of this thesis is to demonstrate the effects of mismatch errors that occur in time-interleaved analog-to-digital converters (TI-ADC) and how these are compensated for by proprietary methods from Signal Processing Devices Sweden AB. This will be demonstrated by two different implementations, both based on the combined digitizer/generator SDR14. These demonstrations shall be done in a way that is easy to grasp for people with limited knowledge in signal processing.

The first implementation is an analog video demo where an analog video signal is sampled by such an TI-ADC in the SDR14, and then converted back to analog and displayed with the help of a TV tuner. The mismatch compensation can be turned on and off and the difference on the resulting video image is clearly visible.

The second implementation is a digital communication demo based on W-CDMA, implemented on the FPGA of the SDR14. Four parallel W-CDMA signals of 5 MHz are sent and received by the SDR14. QPSK, 16-QAM, and 64-QAM modulated signals were successfully sent and the mismatch effects were clearly visible in the constellation diagrams. Techniques used are, for example: root-raised cosine pulse shaping, RF modulation, carrier recovery, and timing recovery.

Place, publisher, year, edition, pages
2012. , 72 p.
Keyword [en]
interleaving, analog-to-digital converter, digital communication, FPGA, analog video, carrier recovery, synchronization, RF modulation, SDR14
National Category
Signal Processing Communication Systems
URN: urn:nbn:se:liu:diva-78709ISRN: LiTH-ISY-EX--12/4570--SEOAI: diva2:535413
External cooperation
Signal Processing Devices Sweden AB
Subject / course
Electronics Systems
2012-06-07, Signalen, Linköpings Universitet, Linköping, 10:15 (Swedish)
Available from: 2012-06-25 Created: 2012-06-18 Last updated: 2012-06-26Bibliographically approved

Open Access in DiVA

fulltext(5324 kB)765 downloads
File information
File name FULLTEXT02.pdfFile size 5324 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
Electronics SystemThe Institute of Technology
Signal ProcessingCommunication Systems

Search outside of DiVA

GoogleGoogle Scholar
Total: 765 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 355 hits
ReferencesLink to record
Permanent link

Direct link