Recovery algorithm adaptive to optical excitation improved electro-acoustic pulse method

The invention discloses a recovery algorithm adaptive to an optical excitation improved electro-acoustic pulse method. The algorithm comprises laser-induced elastic wave superposition recovery, annular electrode potential gradient recovery and acoustic impedance mismatching recovery. Wherein an interference component extraction method is adopted in laser-induced elastic wave superposition recovery; a virtual electrode potential compensation method is adopted in annular electrode potential gradient recovery, and compensation recovery is carried out on the lost potential; the attenuation coefficient and the voltage-charge quantity conversion coefficient are corrected in acoustic impedance mismatch recovery. The novel recovery algorithm provided by the invention solves the problems of waveform distortion and distortion in a space charge optical measurement method, and compared with a traditional algorithm, the novel signal processing algorithm provided by the invention is improved by 47.7% and 9.81% in the calcu