Abstract-we demonstrate how several tools, such as stacking, cross correlation, digital filtering, significantly attenuate the correlated and uncorrelated noise encountered during the estimation of the earth impulse response of multi-transient electromagnetic survey. This study focuses on processing of correlated cultural noise using digital recursive filtering. We also applied this to process the data observed from the MTEM singleline survey conducted over an underground hydrocarbon reservoir.

Abstract-Pseudo-Random binary sequence source is introduced to artificial electromagnetic method, it is necessary to use special technique to process the signal in time domain. In order to test the quality of data processing technology, it is indispensable to compose electromagnetic signal of simulated model under pseudo random binary sequence (PRBS) source exciting. In this paper, based on the physical propagated process of the electromagnetic signal, we compose the simulated signal in time domain. Comparing with actual field signal, the composed signal and the field signal is similar to each other, it proved that the composed signal is right, and the high simulated signal can be used in the processing, and can be used to test the effectiveness of the data processing technique.