Sökning: id:"swepub:oai:research.chalmers.se:fc261859-5ba0-4973-aba1-d7b96ce8d05f" >
AN IMPROVED DOA EST...
AN IMPROVED DOA ESTIMATOR BASED ON PARTIAL RELAXATION APPROACH
-
- Trinh-Hoang, Minh (författare)
- Technische Universität Darmstadt
-
- Viberg, Mats, 1961 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Pesavento, Marius (författare)
- Technische Universität Darmstadt
-
(creator_code:org_t)
- 2018
- 2018
- Engelska.
-
Ingår i: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. - 1520-6149. ; , s. 3246-3250
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://research.cha...
-
https://research.cha...
-
visa färre...
Abstract
Ämnesord
Stäng
- In the partial relaxation approach, at each desired direction, the manifold structure of the remaining interfering signals impinging on the sensor array is relaxed, which results in closed form estimates for the interference parameters. By adopting this approach, in this paper, a new estimator based on the unconstrained covariance fitting problem is proposed. To obtain the null-spectra efficiently, an iterative rooting scheme based on the rational function approximation is applied. Simulation results show that the performance of the proposed estimator is superior to the classical and other partial relaxation methods, especially in the case of low number of snapshots, irrespectively of any specific structure of the sensor array while maintaining a reasonable computational cost.
Ämnesord
- NATURVETENSKAP -- Matematik -- Sannolikhetsteori och statistik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Probability Theory and Statistics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- DOA Estimation
- Partial Relaxation Approach
- Eigenvalue Decomposition
- Covariance Fitting
- Rank-one Modification Problem
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas