METHOD FOR FIELD MONITORING OF A PHASED ARRAY MICROWAVE LANDING SYSTEM FAR FIELD ANTENNA PATTERN EMPLOYING A NEAR FIELD CORRECTION TECHNIQUE

摘要

A process whereby the far field pattern of an antenna of a landing system microwave (MLS) to network phase variable elements by means of measurements carried out by a control device located in the near field said MLS antenna. The near-field pattern is different from the far field pattern due to the presence of terms of phase error in the measured near field configuration. The method comprises calculating the Fourier transform of the complex conjugate numbers of the error term phase of the near-field pattern and the combination of this reaction with the measured near-field pattern, so as to obtain the far field pattern .