加速度位移積分(編輯修改稿)
2024-09-01 04:08 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 function [disint, velint] = IntF(acc, t, ts, flag)if flag == 1% 時(shí)域積分[disint, velint] = IntF_Time(t, acc)。velenergy = sqrt(sum(velint.^2))。velint = detrend(velint)。velreenergy = sqrt(sum(velint.^2))。velint = velint/velreenergy*velenergy。disenergy = sqrt(sum(disint.^2))。disint = detrend(disint)。disreenergy = sqrt(sum(disint.^2))。disint = disint/disreenergy*disenergy。 % 此操作是為了彌補(bǔ)去趨勢(shì)時(shí)能量的損失% 去除位移中的二次項(xiàng)p = polyfit(t, disint, 2)。disint = disint polyval(p, t)。else% 頻域積分velint =iomega(acc, ts, 3, 2)。velint = detrend(velint)。disint =iomega(acc, ts, 3, 1)。% 去除位移中的二次項(xiàng)p = polyfit(t, disint, 2)。disint = disint polyval(p, t)。endend其中時(shí)域積分的子函數(shù)如下% 時(shí)域內(nèi)梯形積分function [xn, vn] = IntF_Time(t, an)vn = cumtrapz(t, an)。vn = vn repmat(mean(vn), size(vn,1), 1)。xn = cumtrapz(t, vn)。xn = xn repmat(mean(xn), size(xn,1), 1)。end頻域積分的子函數(shù)如下（此代碼是一個(gè)老外編的，在頻域內(nèi)實(shí)現(xiàn)積分和微分操作）function dataout =iomega(datain, dt, datain_type, dataout_type)%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%IOMEGA is a MATLAB script for converting displacement, velocity, or%acceleration timeseries to either displacement, velocity, or%
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