Abstract:In remote field eddy current testing(RFECT)of ferromagnetic pipes, because the eddy current signal penetrates the pipe wall twice from the exciting winding and pickup winding, the same defec twill affect the propagation of the remote field eddy current signal twice,which leads to the appearance of two peaks in the received signal, they are called real peak and pseudopeak here. The real peak contains the useful information such as the position of the pipe defect, whereas the pseudopeak acts as a disturbance to the defect positioning in the pipeline test and evaluation. In order to eliminate the disturbance of the pseudopeak to defect positioning, this paper proposes a novel pseudopeak removing method of remote field eddy current. Firstly, mathematical morphological filter(MMF) is utilized to eliminate the baseline bias of the defect signal, then a mathematical model based on radial basis function(RBF) is introduced to fit the real peak and pseudopeak, and the NelderMead simplex method(NMSM) is used to solve the model parameters and obtain the pseudopeak signal. Simulation experiment and practical data processing results indicate that the proposed method possesses a decent pseudopeak removing performance and certain applicability.