Shaping the power spectra of bipolar sequences with application to sub-Nyquist sampling

Andrew Harms, Waheed Uz Zaman Bajwa, Robert Calderbankz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

In the design of line codes for data transmission and modulation codes for data storage it is important to match the spectral properties of bipolar sequences (containing the symbols ±1) to the spectral properties of the transmission or storage medium. This paper demonstrates that spectral shaping is possible with bipolar sequences, and explores the advantage of bipolar sequences with shaped spectra in Analog-to-Digital Converters (ADCs) where they are used to modulate a sparse input waveform that is described by a small number of parameters. Performance is improved by matching the spectrum of the modulating waveform to prior information about the spectrum of the sparse input. The focus is on the Random Demodulator where sparse signals are reconstructed from sub-Nyquist samples.

Original languageEnglish (US)
Title of host publication2013 5th IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, CAMSAP 2013
Pages236-239
Number of pages4
DOIs
StatePublished - Dec 1 2013
Event2013 5th IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, CAMSAP 2013 - Saint Martin, France
Duration: Dec 15 2013Dec 18 2013

Publication series

Name2013 5th IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, CAMSAP 2013

Other

Other2013 5th IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, CAMSAP 2013
CountryFrance
CitySaint Martin
Period12/15/1312/18/13

All Science Journal Classification (ASJC) codes

  • Computer Science Applications

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