OFDM (Orthogonal Frequency Division Multiplexing) signal demodulation method and device, computer equipment and storage medium

The invention relates to an OFDM (Orthogonal Frequency Division Multiplexing) signal demodulation method and device, computer equipment and a storage medium. The method comprises the following steps: determining a plurality of frequency interval estimated values and a plurality of carrier frequency deviation estimated values of each subcarrier of a target signal; for any one estimated value pair, demodulating the target signal based on the estimated value pair to obtain a baseband signal corresponding to the target signal; for any baseband signal, constructing a constellation diagram corresponding to the baseband signal, obtaining a matrix expression characteristic value corresponding to the constellation diagram, and determining a target characteristic value difference value according to the matrix expression characteristic value; and according to the target characteristic value difference value corresponding to each baseband signal, determining a target baseband signal from each baseband signal. By adopting