Aiming at the unreasonable problem of gross error elimination and weight determination in traditional antenna measurement data processing

a method for multi-elevation antenna measurement data processing is proposed

which combines gross error elimination and weighting way of L1-norm least method. Firstly

according to the characteristics of reflector gravity deformation

the gross error was eliminated by constructing statistics

which improved the reliability of measurement data. Secondly

referring to the deformation characteristics of measurement points

the L1-norm least method in robust estimation was introduced to determine the weights of different deformation points

so as to solve the "false fitting surface" problem of equal-weight least square fitting. Through the calculation of measurement data for a Φ 13m antenna reflector

compared with other methods

the fitting results of this method can reasonably and accurately reflect the actual reflector deformation deviation

and this method is more suitable for the data processing of antenna reflector gravity deformation.