Dynamic consistency test method combining time domain with frequency domain for simulation results

Aiming at the non-stationary and short time series characteristics of the dynamic output procedure for many weapon systems,a consistency test method combining time domain with frequency domain for simulation results is proposed.According to the procedures,approaches and rules of the research process,a consistency test framework is established.Considering the deficiency of the traditional grey relational analysis method,the grey relational analysis model is improved by taking into account the distances and form of inter-series,which is used to test the dynamic consistency in time domain.Then,considering the stationary character required for the data processing using the maximum entropy spectral estimation method and combining with the character that prior knowledge is not required in wavelet multi-scale analysis when dealing with signal decomposition and reconstruction,non-stationary data are converted to stationary results by which the dynamic consistency test is performed in frequency domain.Finally,the two analysis results are combined on the basis of conflict analysis by applying combination rules,and the synthetic consistency test result is obtained.The effectiveness and feasibility of the method are verified through the consistency test for the discharge current in a railgun emitting process.