加速度位移積分-閱讀頁
2024-08-24 04:08本頁面
【正文】 on timesseries. The script takes an array of waveform data%convert into desired output form, and then converts back into the time%form.%%%%=dataout=dttime increment (units of seconds per sample)%%1 Displacement%2 Velocity%3 Acceleration%%1 Displacement%2 Velocity%3 Acceleration%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%Value for datain_type must be a 1, 2 or 339。elseif (dataout_type 1 || dataout_type 3)error(39。)。Determine Number of points (next power of 2), frequency increment%df = 1/(N*dt)。%iomega_exp = dataout_type datain_type。Pad datain array with zeros (if needed)size1 = size(datain,1)。if (Nsize1 ~= 0 amp。 Nsize2 ~= 0)if size1 size2datain = vertcat(datain,zeros(Nsize1,1))。endend%so that zerofrequency amplitude is in the middle of the array%A = fftshift(A)。Convert datain of type datain_type to type dataout_typefor j = 1 : Nif iomega_array(j) ~= 0A(j) = A(j) * (iomega_array(j) ^ iomega_exp)。endend%transform back into the time domain via the inverse FFT.A = ifftshift(A)。%biggerst power of 2 and return dataout.if size1 size2dataout = real(datain(1:size1,size2))。endreturn
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鄂ICP備17016276號-1