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2016-03-30
In-Situ Monitoring Method for Direction Finding Antennas
By
Progress In Electromagnetics Research M, Vol. 47, 99-110, 2016
Abstract
Antenna arrays for direction finding (DF) are usually designed and tested in controlled environments such as anechoic chambers. However, antenna pattern may change significantly when antennas are placed in their operational environment. In such perturbing close context, the antennas calibration validity becomes a major issue which can lead to DF performance degradation and costly recalibration process. This paper presents an innovative design and implementation of a non-disturbing solution for quasi-real time antenna monitoring. The proposed system is based on optically modulated scattering (OMS) technique. Its capacity to detect the presence of various types of obstacles, which perturb significantly the antenna radiation pattern, is evaluated. A relation between monitoring mode and DF mode measurement signals is established. Finally, a design and sizing of the overall system is proposed.
Citation
Lama Ghattas, Serge Bories, Dominique Picard, Philippe Pouliguen, and Patrick Potier, "In-Situ Monitoring Method for Direction Finding Antennas," Progress In Electromagnetics Research M, Vol. 47, 99-110, 2016.
doi:10.2528/PIERM15111704
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