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Time delay estimation using the LMS adaptive filter--Static behavior
Abstract
A new application of the LMS adaptive filter, that of determining the time delay in a signal between two split-array outputs, is described. In a split array sonar, this time delay can be converted to the bearing of the target radiating the signal. The performance of such a tracker is analyzed for stationary broad-band targets. It is shown that a continuous adaptive tracker performs within 0.5 dB of the Cramér-Rao lower bound. Further, performance predictions are developed for a discrete adaptive tracker which demonstrates excellent agreement with simulations. It is shown that the adaptive tracker can have significantly less sensitivity to changing input spectra than a conventional tracker using a fixed input filter.
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References 18 · Cited by 232
Research works printed but not linked: 3
- carter, 1979, Sonar signal processing for source state estimation, EASCON Rec
- feintuch, 1978, Final report on phase 1 of the adaptive tracking system study
- feintuch, 1979, Final report on phase 1 of the adaptive tracking system study
Metadata
- Authors
- Reed, F., Feintuch, P., & Bershad, N.
- Affiliations
- Hughes Aircraft (United States) (US)
- University of California, Irvine (US)
- ORCID
- Bershad, N.
- Venue
- IEEE Transactions on Acoustics, Speech, and Signal Processing
- Published
- 1981-06
- Volume
- 29
- Issue
- 3
- Pages
- 561-571
- ISSN
- 0096-3518 (ISSN-L)
- OpenAlex
- W2103203016
- Cited by
- 232
- References
- 18
- Citations by year
- 2026: 1 · 2025: 5 · 2024: 2 · 2023: 7 · 2022: 4 · 2021: 8 · 2020: 8 · 2019: 2 · 2017: 8 · 2016: 4 · 2015: 4 · 2014: 4 · 2013: 9 · 2012: 5
- FWCI
- 7.79
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- IEEE Transactions on Acoustics Speech and Signal Processing (publishedVersion)
- Topics
- Physical Sciences › Computer Science › Signal Processing › Advanced Adaptive Filtering Techniques
- Physical Sciences › Computer Science › Signal Processing › Direction-of-Arrival Estimation Techniques
- Physical Sciences › Computer Science › Artificial Intelligence › Target Tracking and Data Fusion in Sensor Networks
- Keywords
- time delay estimation, LMS adaptive filter, bearing estimation, adaptive tracking, Cramer-Rao lower bound
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