Deformation array antenna electrical performance compensation method based on subarray extrapolation and phase optimization

The invention discloses a deformation array antenna electrical performance compensation method based on subarray extrapolation and phase optimization. The method comprises the steps of establishing a unit model and a sub-array model, and extracting a pattern in an array; calculating an ideal array antenna radiation pattern, and extracting related parameters; calculating a deformed far-field pattern and an ideal compensation phase; rounding down the ideal compensation phase according to the minimum phase shift digit of a phase shifter; and finally, optimizing the compensation phase obtained by rounding down by using a genetic algorithm and the parameters of the ideal radiation pattern to obtain an actual compensation phase. Based on too large array and phase shift limitation of a phase shifter in actual engineering, through subarray extrapolation and genetic algorithm optimization, extrapolation calculation is performed on a large array, an ideal compensation phase is quantized and optimized and finally used i