clear all; close all; clc; start_time = [162 23 10 0]; window = 5000; das = '9FCC'; [seisTREX,hdr] = segycut(start_time,window,das,'3'); tvec=linspace(0,window,window*hdr.sps); conv_factor_1INCH_DM_V_V2PA= 1/800; vect_signalPA=-seisTREX*conv_factor_1INCH_DM_V_V2PA*hdr.atod; npoles = 2 high = .25 [B2,A2] = butter(npoles,[high]/(hdr.sps/2),'high') highpassV = filter(B2,A2,vect_signalPA); figure(2) plot(tvec,highpassV); axis tight; set(gcf,'Position',[0 0 700 150])