5D Parameter Estimation of Near-Field Sources Using Hybrid Evolutionary Computational Techniques
Joint Authors
Qureshi, Ijaz Mansoor
Zaman, Fawad
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-18
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Hybrid evolutionary computational technique is developed to jointly estimate the amplitude, frequency, range, and 2D direction of arrival (elevation and azimuth angles) of near-field sources impinging on centrosymmetric cross array.
Specifically, genetic algorithm is used as a global optimizer, whereas pattern search and interior point algorithms are employed as rapid local search optimizers.
For this, a new multiobjective fitness function is constructed, which is the combination of mean square error and correlation between the normalized desired and estimated vectors.
The performance of the proposed hybrid scheme is compared not only with the individual responses of genetic algorithm, interior point algorithm, and pattern search, but also with the existing traditional techniques.
The proposed schemes produced fairly good results in terms of estimation accuracy, convergence rate, and robustness against noise.
A large number of Monte-Carlo simulations are carried out to test out the validity and reliability of each scheme.
American Psychological Association (APA)
Zaman, Fawad& Qureshi, Ijaz Mansoor. 2014. 5D Parameter Estimation of Near-Field Sources Using Hybrid Evolutionary Computational Techniques. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1049180
Modern Language Association (MLA)
Zaman, Fawad& Qureshi, Ijaz Mansoor. 5D Parameter Estimation of Near-Field Sources Using Hybrid Evolutionary Computational Techniques. The Scientific World Journal No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-1049180
American Medical Association (AMA)
Zaman, Fawad& Qureshi, Ijaz Mansoor. 5D Parameter Estimation of Near-Field Sources Using Hybrid Evolutionary Computational Techniques. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1049180
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1049180