METHOD FOR AUTOMATIC MEASUREMENT OF ANTENNA DIRECTION DIAGRAM PARAMETERS IN THE FAR ZONE BY FLIGHT METHOD USING UAV Russian patent published in 2021 - IPC G01R29/10 

FIELD: antenna measurements.

SUBSTANCE: invention relates to the technique of antenna measurements and can be used to measure the parameters of the antenna directional pattern (DP) by the method for its flight. The essence of the claimed solution lies in the fact that the implementation of the implementation of the matched filtering of the used signals, their time selection, power normalization and threshold processing, and also calculate the two-dimensional cross-correlation function (TDCCF) of the surface formed in three-dimensional space by the power values ​​of the signals exceeding the threshold, and the template formed in three-dimensional space by the values ​​of the modulus of the a priori given DP of the antenna under study. Also, the two-dimensional autocorrelation function (TDACF) of the template is calculated. The direction is determined by the maximum of the TDCCF, and by the ratio of the cross sections of the TDCCF and TDACF, the width of the main sections of the main lobe (ML) of the DP of the investigated antenna. The calculations are iteratively repeated, starting with the calculation of the TDCCF, until the required accuracy is achieved. In this case, the values ​​obtained in the current iteration are taken as the a priori specified parameters of the ML of the DP for the new iteration.

EFFECT: improving the accuracy (quality) of measuring the parameters of the main lobe (ML) of the antenna pattern.

1 cl, 12 dwg