Real-time sound field separation method based on time domain equivalent source method

The invention discloses a real-time sound field separation method based on a time domain equivalent source method. The method comprises the steps of arranging a measurement surface between a target source and an interference source, and synchronously collecting the time domain sound pressure and the time domain particle vibration velocity at measurement points on the measurement surface; arrangingequivalent sources on two sides of the measuring surface for respectively simulating a target source sound field and an interference source sound field; carrying out interpolation processing on the time domain source intensity integral of each equivalent source by adopting a linear interpolation function, and establishing a transfer relationship between the sound pressure and the mass point vibration velocity of each measurement point at any moment and each equivalent source intensity; sequentially obtaining the time domain source intensity integral of each equivalent source on the two sidesof the measurement surface