In order to evaluate the confidence of reconstructed ship-radiated noise，a method based on frequency domain feature similarity is proposed to evaluate the confidence of the reconstructed ship-radiated noise simulation model. Firstly，this paper analyzes the consistency of line spectrum and power spectrum values between measured ship-radiated noise data and reconstructed ship-radiated noise data. Then，it uses the evidence theory to integrate the consistency results of line spectrum and power spectrum，so as to quantify the confidence of the reconstructed ship-radiated noise model，providing theoretical support for the application of the reconstructed ship-radiated noise model.
