Low-altitude wind shear wind speed estimating method based on space-time optimal processor

The invention relates to a low-altitude wind shear wind speed estimating method based on a space-time optimal processor and belongs to the field of airborne meteorological radar signal processing. The low-altitude wind shear wind speed estimating method based on the space-time optimal processor comprises the following steps of 1) reading aeroplane state parameters, radar antenna scanning parameters and the like from associated airborne equipment as prior information; 2) selecting a distance unit to be detected, and correcting the distance dependence of ground clutter through a space-time interpolation method; 3) compensating aeroplane speed through the prior information; 4) estimating the ground clutter covariance matrix of the distance unit to be detected; 5) suppressing the ground clutter and performing wind speed estimation through the space-time optimal processor; 6) repeating the steps of 2)-5) and sequentially performing wind speed estimation on the echo data of all the distance units. The low-altitude wind shear wind speed estimating method based on the space-time optimal processor is used for solving the problem of poor wind speed estimation precision under the background of heavy clutter and imports space-time information into an airborne meteorological radar. Simulation results prove the effectiveness of the low-altitude wind shear wind speed estimating method based on the space-time optimal processor.