Design of Low Complexity Robust Broadband Beamformers with Least Squared Performance Criterion
This paper investigates the design of low complexity, non-robust and robust broadband beamformers with least squared criterion. An iterative algorithm is proposed to reduce the number of non-zero coefficients in both the non-robust and robust beamformers to reduce the computational complexity. Desig...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
AITAC
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/10472 |
| _version_ | 1848747542845587456 |
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| author | Rimantho, Dedi Dam, Hai Huyen (Heidi) Nordholm, Sven |
| author_facet | Rimantho, Dedi Dam, Hai Huyen (Heidi) Nordholm, Sven |
| author_sort | Rimantho, Dedi |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper investigates the design of low complexity, non-robust and robust broadband beamformers with least squared criterion. An iterative algorithm is proposed to reduce the number of non-zero coefficients in both the non-robust and robust beamformers to reduce the computational complexity. Design examples show that the number of nonzero coefficients for the beamformers can be significantly reduced without a significant degradation in the integral squared error. In addition, the robust beamformer is less sensitive to non-zero coefficient reduction than the non-robust beamformer. In particular, the number of non-zero coefficients for the robust beamformer can be reduced by up to 74% with only a small reduction of 1.34dB in the integral squared error. |
| first_indexed | 2025-11-14T06:50:49Z |
| format | Journal Article |
| id | curtin-20.500.11937-10472 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:50:49Z |
| publishDate | 2012 |
| publisher | AITAC |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-104722017-01-30T11:19:05Z Design of Low Complexity Robust Broadband Beamformers with Least Squared Performance Criterion Rimantho, Dedi Dam, Hai Huyen (Heidi) Nordholm, Sven This paper investigates the design of low complexity, non-robust and robust broadband beamformers with least squared criterion. An iterative algorithm is proposed to reduce the number of non-zero coefficients in both the non-robust and robust beamformers to reduce the computational complexity. Design examples show that the number of nonzero coefficients for the beamformers can be significantly reduced without a significant degradation in the integral squared error. In addition, the robust beamformer is less sensitive to non-zero coefficient reduction than the non-robust beamformer. In particular, the number of non-zero coefficients for the robust beamformer can be reduced by up to 74% with only a small reduction of 1.34dB in the integral squared error. 2012 Journal Article http://hdl.handle.net/20.500.11937/10472 AITAC restricted |
| spellingShingle | Rimantho, Dedi Dam, Hai Huyen (Heidi) Nordholm, Sven Design of Low Complexity Robust Broadband Beamformers with Least Squared Performance Criterion |
| title | Design of Low Complexity Robust Broadband Beamformers with Least Squared Performance Criterion |
| title_full | Design of Low Complexity Robust Broadband Beamformers with Least Squared Performance Criterion |
| title_fullStr | Design of Low Complexity Robust Broadband Beamformers with Least Squared Performance Criterion |
| title_full_unstemmed | Design of Low Complexity Robust Broadband Beamformers with Least Squared Performance Criterion |
| title_short | Design of Low Complexity Robust Broadband Beamformers with Least Squared Performance Criterion |
| title_sort | design of low complexity robust broadband beamformers with least squared performance criterion |
| url | http://hdl.handle.net/20.500.11937/10472 |