METHOD FOR CALIBRATING A KA BAND SATCOM ANTENNA

摘要

Method and device for calibrating an antenna comprising the following steps: Define a number n of positions of angles for the aircraft situated in a calibration zone: Measure the value of the orientation of the antenna for each position n, [Αa(n), Εa(n)]; Define the theoretical orientation of the antenna [Αa(n)*, Εa(n)*] by taking account of the pitch value, of the roll value, of the yaw value (heading) for the aircraft for each position n, and of the orientation values of the satellite [Αr(n), Εr(n)]: [Aa(n)*, Ea(n )*] = F(H(n), P(n), R(n), δΗ, δΡ, δR, δΕ, Ar(n), Er(n)), where F is a chosen geometric function; Define a criterion C: C = Σ(Αa(n) — Αa(n)*)² + ( Εa(n) — Εa(n)*)²; Minimize the value of the criterion C so as to determine the bias values (δΗ, δΡ, δR, δΕ) from the values [Aa*(n), Ea*(n)] and use the said bias values to minimize the disparities between the measured angles and the theoretical angles.