Method and device for correcting phased array

The invention discloses a phased array correction method and device, and the method comprises the steps: carrying out the internal correction and external correction of a phased array antenna, and calculating a channel correction coefficient based on the external correction result and the internal correction result; the method comprises the following steps of: after a phased array is started, controlling the array surface temperature of a phased array antenna, performing internal correction on the array surface after the array surface temperature is reduced to a low limit value Tmin allowed by work, performing internal correction on the array surface once every time the array surface temperature is increased by delta T, and gradually increasing the working temperature to a high limit value Tmax allowed by work according to the environment temperature requirement when the phased array works; and calculating the compensation coefficients of the phased-array antenna at different working temperatures according to