Filter bank based fractional delay filter implementation for widely accurate broadband steering vectors

Mohamed Abubaker Alrmah, Stephan Weiss

Research output: Contribution to conferencePaper

3 Citations (Scopus)

Abstract

Applications such as broadband angle of arrival estimation require the implementation of accurate broadband steering vectors, which generally rely on fractional delay filter designs. These designs commonly exhibit a rapidly decreasing performance as the Nyquist rate is approached. To overcome this, we propose a filter bank based approach, where standard fractional delay filters operate on a series of frequency-shifted oversampled subband signals, such that they appear in the filter's lowpass region. Simulations demonstrate the appeal of this approach.

Conference

ConferenceThe Fifth IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing
CountryFrance
CitySan Martin
Period15/12/1318/12/13

Fingerprint

Filter banks

Keywords

  • polynomials
  • vectors
  • approximation methods
  • arrays
  • broadband communication
  • delays
  • frequency modulation

Cite this

Alrmah, M. A., & Weiss, S. (2013). Filter bank based fractional delay filter implementation for widely accurate broadband steering vectors. 332-335. Paper presented at The Fifth IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, San Martin, France. https://doi.org/10.1109/CAMSAP.2013.6714075
Alrmah, Mohamed Abubaker ; Weiss, Stephan. / Filter bank based fractional delay filter implementation for widely accurate broadband steering vectors. Paper presented at The Fifth IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, San Martin, France.4 p.
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abstract = "Applications such as broadband angle of arrival estimation require the implementation of accurate broadband steering vectors, which generally rely on fractional delay filter designs. These designs commonly exhibit a rapidly decreasing performance as the Nyquist rate is approached. To overcome this, we propose a filter bank based approach, where standard fractional delay filters operate on a series of frequency-shifted oversampled subband signals, such that they appear in the filter's lowpass region. Simulations demonstrate the appeal of this approach.",
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Alrmah, MA & Weiss, S 2013, 'Filter bank based fractional delay filter implementation for widely accurate broadband steering vectors' Paper presented at The Fifth IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, San Martin, France, 15/12/13 - 18/12/13, pp. 332-335. https://doi.org/10.1109/CAMSAP.2013.6714075

Filter bank based fractional delay filter implementation for widely accurate broadband steering vectors. / Alrmah, Mohamed Abubaker; Weiss, Stephan.

2013. 332-335 Paper presented at The Fifth IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, San Martin, France.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Filter bank based fractional delay filter implementation for widely accurate broadband steering vectors

AU - Alrmah, Mohamed Abubaker

AU - Weiss, Stephan

PY - 2013/12/15

Y1 - 2013/12/15

N2 - Applications such as broadband angle of arrival estimation require the implementation of accurate broadband steering vectors, which generally rely on fractional delay filter designs. These designs commonly exhibit a rapidly decreasing performance as the Nyquist rate is approached. To overcome this, we propose a filter bank based approach, where standard fractional delay filters operate on a series of frequency-shifted oversampled subband signals, such that they appear in the filter's lowpass region. Simulations demonstrate the appeal of this approach.

AB - Applications such as broadband angle of arrival estimation require the implementation of accurate broadband steering vectors, which generally rely on fractional delay filter designs. These designs commonly exhibit a rapidly decreasing performance as the Nyquist rate is approached. To overcome this, we propose a filter bank based approach, where standard fractional delay filters operate on a series of frequency-shifted oversampled subband signals, such that they appear in the filter's lowpass region. Simulations demonstrate the appeal of this approach.

KW - polynomials

KW - vectors

KW - approximation methods

KW - arrays

KW - broadband communication

KW - delays

KW - frequency modulation

U2 - 10.1109/CAMSAP.2013.6714075

DO - 10.1109/CAMSAP.2013.6714075

M3 - Paper

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Alrmah MA, Weiss S. Filter bank based fractional delay filter implementation for widely accurate broadband steering vectors. 2013. Paper presented at The Fifth IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, San Martin, France. https://doi.org/10.1109/CAMSAP.2013.6714075