Name
Abstract | ||
|---|---|---|
We propose to design a small-size antenna array having high direction-of-arrival (DOA) estimation performance, inspired by the Ormia ochracea's coupled ears. The female Ormia is able to locate male crickets' call accurately, for reproduction purposes, despite the small distance between its ears compared with the incoming wavelength. This phenomenon has been explained by the mechanical coupling between the Ormia's ears, modeled by a pair of differential equations. In this paper, we first solve the differential equations governing the Ormia ochracea's ear response, and convert the response to the prespecified radio frequencies. Using the converted response, we then implement the biologically inspired coupling as a multi-input multi-output filter on a uniform linear antenna array output. We derive the maximum likelihood estimates of source DOAs, and compute the corresponding Cramér–Rao bound on the DOA estimation error as a performance measure. We also consider a circular array configuration and compute the mean-square angular error bound on the three-dimensional localization accuracy. Moreover, we propose an algorithm to optimally choose the biologically inspired coupling for maximum localization performance. We use Monte Carlo numerical examples to demonstrate the advantages of the coupling effect. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/TSP.2011.2160056 | IEEE Transactions on Signal Processing |
Keywords | Field | DocType |
doa estimation,ormia ochracea coupled ears,maximum likelihood estimation,monte carlo methods,biologically inspired sensing,biologically inspired coupled antenna array,antenna arrays,direction of arrival estimation,crickets,mean square angular error,array signal processing,ear,ormia ochracea's coupled ears,linear antenna array,direction-of-arrival estimation,small size antenna array,three dimensional localization accuracy,uniform linear antenna array,multi input multi output filter,monte carlo numerical,differential equations,coupling effect,multiinput multioutput filter,mean square error methods,linear antenna arrays,biomimetics,monte carlo,couplings,antenna measurement,radio frequency,three dimensional,differential equation,maximum likelihood estimate,antenna array,direction of arrival,estimation | Differential equation,Mathematical optimization,Monte Carlo method,Coupling,Computer science,Direction of arrival,Control theory,Circular buffer,Antenna array,Ormia,Ormia ochracea | Journal |
Volume | Issue | ISSN |
59 | 10 | 1053-587X |
ISBN | Citations | PageRank |
978-1-4244-9722-5 | 2 | 0.67 |
References | Authors | |
10 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Murat Akcakaya | 1 | 15 | 1.73 |
| C. Muravchik | 2 | 543 | 68.59 |
| Nehorai, Arye | 3 | 1934 | 309.00 |