Abstract: The disclosed is a target detection method, including: dividing a Doppler spectrum into N sub-bands, extracting energies of N signals from the Doppler spectrum; among the N signals, traversing position orders of signals corresponding to multiple transmission antennas; based on a respective total energy of the signals corresponding to the multiple transmission antennas under each position order, determining sub-bands to which the signals corresponding to the multiple transmission antenna belong. By traversing position orders of the signals of the multiple transmission antennas, a position order corresponding to a maximum total energy can be used to determine positions of the signals of the multiple transmission antennas in the sub-bands, ensuring the accuracy of the channel separation of each transmission antenna and thereby increasing target detection accuracy. Further disclosed are a signal processing method, a computer-readable storage medium, an integrated circuit, a radio device, and a terminal device.