Optical testing method for mutual radiation impedance of underwater acoustic array

The invention belongs to the basic field of underwater acoustic testing technologies, and mainly relates to an optical testing method for the mutual radiation impedance of an underwater acoustic array. The optical testing method comprises the steps of obtaining vibration velocity information of a radiation surface of the acoustic array and a mass point of a radiating acoustic field by adopting a laser vibrometer, and then calculating by using the classical acoustic array mutual radiation impedance theory. The invention has the beneficial effects that the shortcomings of a commonly used intrusive acoustic array mutual radiation impedance testing method are overcome by using a non-contact testing method, problems of a method required for underwater acoustic array mutual radiation impedance testing and accurate testing under low frequency and high power are solved, a mutual radiation model is provided for underwater acoustic array velocity control, and a powerful technical guarantee is provided for the developme