Noise measuring analysis on the ground test of solid rocket motor

The noise was measured on the ground test of solid rocket motor by using the noise testing system.The measured signals were analyzed in terms of amplitude spectrum.A noise testing method of solid rocket motor was proposed.Principle and function of the each part of the noise testing system were introduced,then the noise mechanism and characteristics of time-domain and frequency-domain were researched.The valuable conclusion was obtained to improve the ability of solid rocket motor design and help to reduce the noise.