Robust wideband beamforming
Open accessAbstract
Robust wideband beamforming with a real-time array testbed will be studied in this paper. For the practical consideration of uncertainty, channel impulse responses or channel transform functions of RF chains can not be obtained exactly due to the limitation of sounding and calibration procedure. Thus robust optimization will be applied to wideband beamforming. It is assumed that the uncertainty will be bounded and the worst case performance can be guaranteed by robust optimization. Finally, the optimal coefficients for a 2-dimensional filter bank to perform wideband beamforming will obtained.
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The TTD beamformer is the optimal beamformer when the signals of interest are contaminated by wide sense stationary AWGN.
“The TTD beamformer is the optimal beamformer when the signals of interest are contaminated by wide sense stationary AWGN [2,3,4,5];”
From Thiran Filters for Wideband DSP-Based Multi-Beam True Time Delay RF Sensing Applications (2024) · cites this paper as [4]
The Introduction (section I; page not supplied) describes a tapped-delay-line approach, and section II formulates optimization of a wideband beam pattern. Searches for TTD or true-time-delay optimality under wide-sense-stationary additive white Gaussian noise found no passage in our copy addressing that condition or comparison. (LLM, conf=0.73)
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Cites
Boyd, S., & Vandenberghe, L. (2004) · doi:10.1017/cbo9780511804441 · Cited by 56,601 · see citing works
Robust optimization ? methodology and applications
Ben-Tal, A., & Nemirovski, A. (2002) · Mathematical Programming · doi:10.1007/s101070100286 · Cited by 1,409 · see citing works
Robust Solutions to Least-Squares Problems with Uncertain Data
Ghaoui, L. E., & Lebret, H. (1997) · SIAM Journal on Matrix Analysis and Applications · doi:10.1137/s0895479896298130 · Cited by 1,077 · see citing works
Ben-Tal, A., Ghaoui, L. E., & Nemirovski, A. (2021) · Princeton Series in Applied Mathematics · doi:10.1515/9781400831050 · Cited by 1,046 · see citing works
Robust solution to least squares problems with uncertain data
Ghaoui, L. E., & Lebret, H. (1997) · Cited by 638 · see citing works
Robust Transmit Power Control for Cognitive Radio
Setoodeh, P., & Haykin, S. (2009) · Proceedings of the IEEE · doi:10.1109/jproc.2009.2015718 · Cited by 197 · see citing works
A least squares approach to the design of frequency invariant beamformers
Zhao, Y., Liu, W., & Langley, R. J. (2009) · Cited by 29 · see citing works
Deisgn of look-up table based architecture for wideband beamforming
Hu, Z., Guo, N., Qiu, R., Bonior, J., Liou, L., Lin, D., Longbrake, M., Buxa, P., Dalrymple, T., Hong, S., et al. (2010) · 2010 International Waveform Diversity and Design Conference · doi:10.1109/wdd.2010.5592322 · Cited by 5 · see citing works
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Thiran Filters for Wideband DSP-Based Multi-Beam True Time Delay RF Sensing Applications
Perera, S. M., Rathnasekara, G., & Madanayake, A. (2024) · Sensors · doi:10.3390/s24020576 · Cited by 5 · see citing works
“…12, where ψ p ( z ) are direct form II Thiran filter blocks that implement true-time fractional delays having value p τ , p = 1, 2, 3..., 6. x [ 4 ] x [ 5 ] x [ 6 ] x [ 7 ] U ( 1 ) U ( 2 ) U ( 3 ) L ( 6 ) L ( 5 ) x [ 1 ] x [ 2 ] x [ 3 ] ( z L ( 1 ) L ( 7 ) U ( 4 ) U ( 5 ) U ( 6 ) U ( 7 ) 6 = (…”
- Authors
- Hu, Z., Guo, N., Qiu, R., Bonior, J., Liou, L., Lin, D., Longbrake, M., Buxa, P., Dalrymple, T., Hary, S., & Tsui, J.
- Affiliations
- Tennessee Technological University (US)
- United States Air Force Research Laboratory (US)
- Venue
- Proceedings of the IEEE 2010 National Aerospace & Electronics Conference
- Publisher
- IEEE
- Published
- 2010-07
- Pages
- 60-64
- OpenAlex
- W2123881377
- Cited by
- 5
- References
- 8
- Citations by year
- 2024: 1 · 2019: 1 · 2012: 2
- FWCI
- 1.10
- Type
- conference paper
- Language
- en
- Open access
- green
- zenodo.org
- Licence
- public-domain
- Locations
- IEEE National Aerospace and Electronics Conference (NAECON) (publishedVersion)
- Zenodo (CERN European Organization for Nuclear Research) (submittedVersion, public-domain)
- Topics
- Physical Sciences › Computer Science › Signal Processing › Direction-of-Arrival Estimation Techniques
- Physical Sciences › Engineering › Aerospace Engineering › Radar Systems and Signal Processing
- Physical Sciences › Computer Science › Signal Processing › Speech and Audio Processing
- Keywords
- wideband beamforming, robust optimization, bounded uncertainty, worst-case performance, RF chains, filter banks, antenna arrays
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