For access to this article, please select a purchase option:
IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.
Your recommendation has been sent to your librarian.
The conformal array has inherent advantage of processing polarization information for its antennas equip distinct patterns that influenced by surface curvature and antenna orientation. When antennas suffer from position errors, not only spatial responses but also polarization responses change a lot. Customary calibration algorithms designed for scalar arrays focus only on the spatial perturbations, and their performances degrade when extended to conformal arrays. To cope with that, a position error calibration algorithm for conformal arrays based on calibrated sources is proposed. Firstly, we build a precise model with disturbed polarization responses involved, and separate the position error into the height direction and axial direction. Axial errors in polarization responses are estimated firstly, and then substituted into the designed optimization function to calculate height errors. Simulations validates the performance of the proposed algorithm.
Inspec keywords: electromagnetic wave polarisation; calibration; array signal processing; conformal antennas
Subjects: Signal processing and detection; Electromagnetic wave propagation; Single antennas; Measurement standards and calibration