Development of an adaptive array based on subband signal processing

Y. Kamiya, S. Denno, Y. Mizuguchi, M. Katayama, A. Ogawa, Y. Karasawa

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

6 Citations (Scopus)

Abstract

Adaptive arrays are recognized as a solution to multipath fading environments that can be a serious problem in high-speed mobile communication systems. However, huge computational loads are required due to its spatio-temporal signal processing. Subband signal processing has been known as a parallel signal processing scheme on the frequency domain. It allows us to allocate heavy computational loads to several processors when it is implemented in digital signal processors (DSPs) or field programmable gate arrays (FPGAs) and so on. Basically, the performance of adaptive arrays based on subband signal processing is identical to that based on time domain signal processing. However, several types of configurations are possible. As a result, there is a configuration that is very advantageous in terms of the computational reduction even though its performance is slightly degraded compared to one configured in the time domain. In this paper, an adaptive array based on subband signal processing that can intensively reduce computational loads is implemented by using DSPs and its performance is verified through experiments in an anechoic chamber. Finally, the computational loads of adaptive arrays are examined and the implemented adaptive array is shown to realize very efficient signal processing.

Original languageEnglish
Title of host publicationISAPE 2000 - 2000 5th International Symposium on Antennas, Propagation and EM Theory, Proceedings
EditorsYaqiu Jin
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages243-246
Number of pages4
ISBN (Electronic)0780363779, 9780780363779
DOIs
Publication statusPublished - Jan 1 2000
Externally publishedYes
Event5th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2000 - Beijing, China
Duration: Aug 15 2000Aug 18 2000

Publication series

NameISAPE 2000 - 2000 5th International Symposium on Antennas, Propagation and EM Theory, Proceedings

Other

Other5th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2000
CountryChina
CityBeijing
Period8/15/008/18/00

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Kamiya, Y., Denno, S., Mizuguchi, Y., Katayama, M., Ogawa, A., & Karasawa, Y. (2000). Development of an adaptive array based on subband signal processing. In Y. Jin (Ed.), ISAPE 2000 - 2000 5th International Symposium on Antennas, Propagation and EM Theory, Proceedings (pp. 243-246). [894770] (ISAPE 2000 - 2000 5th International Symposium on Antennas, Propagation and EM Theory, Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISAPE.2000.894770