The Cramer-Rao bound for the estimation of angles of arrival in on-board array antennas
✍ Scribed by I. T. Castro; L. Landesa; J. M. Taboada; F. Obelleiro
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 179 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0895-2477
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Array antennas mounted on aircraft, ships, or any other complex platform suffer from mutual coupling and coupling with the platform in the transmission or reception of electromagnetic waves. These coupling effects affect the estimation of the direction of arrival (DOA) of plane waves performed with on‐board antennas. With the use of the method of moments (MoM) to model these electromagnetic (EM) coupling terms, closed‐matrix expressions for the Cramer–Rao bound (CRB) are obtained for on‐board array antennas considering both mutual coupling and platform coupling effects. Some significant differences in the CRB have been found when this bound is compared with the same bound calculated in an ideal free coupling environment. Numerical results are shown to illustrate these effects. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 119–123, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10249