Correlation analysis of interference in the electrical minerals prospecting system

This article is about the interference elimination in the electrical minerals prospecting system. The authors describe a new method of obtaining a mathematical model of the slow interference. This model is derived by using Yule-Walker linear prediction method of 8th order. Graphs are drawn for each stage of the algorithm: the plot of the signal in a rare time, the plot of the interpolated signal, linear prediction coefficients were found and the plot of the autocorrelation function of Yule-Walker linear prediction method were drawn. The experiment showed that this way of presenting the slow interference gives more accurate estimates of the autocorrelation function than previously used multivariate Gaussian distribution. The algorithm discussed in this paper will be used for filtering the received signal and reduction of the slow interference impact.