Dual-band meteorological radar external calibration verification method and device, and computer equipment

The invention relates to a dual-band meteorological radar external calibration verification method, a dual-band meteorological radar external calibration verification device and computer equipment. The dual-band meteorological radar external calibration verification method comprises the following steps of: acquiring scanning data of a meteorological target by means of an externally calibrated dual-band meteorological radar; determining a first reflectivity factor matrix and a second reflectivity factor matrix according to the scanning data; calculating a difference between the first reflectivity factor matrix and the second reflectivity factor matrix to obtain a reflectivity factor difference matrix; determining a ratio of the number of elements which are not empty and have absolute valuessmaller than a first preset threshold value in the reflectivity factor difference matrix to the total number of the elements to obtain a first ratio; determining a ratio of the number of elements which are not empty and have