基于频域特征相似的仿真模型置信度分析

Analysis of Simulation Model Confidence Based on Frequency Domain Feature Similarity

摘要:

为评估重构舰船辐射噪声模型置信度，提出了一种基于频域特征相似的重构舰船辐射噪声仿真模型置信度评估方法。先对舰船辐射噪声实测数据与重构舰船辐射噪声数据的线谱和功率谱值进行一致性分析后，再采用证据理论综合线谱、功率谱值一致性结果，量化重构舰船辐射噪声模型置信度，为重构舰船辐射噪声模型应用提供了理论支撑。

Abstract:

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.