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質問
How to compute Sound Pressure Level?
I have to Plot SPL(Sound Pressure Level) SPL = 20log10(P1/P_ref), where P_ref = 2upa. the outcome is scalar. i want to plot...
3年以上 前 | 1 件の回答 | 0
1
回答質問
why ifft is complex coefficient?
i have to multiply complex number to fft of signal but the symmetric property is eliminated when complex number is multiply So...
約4年 前 | 1 件の回答 | 0
1
回答質問
frequency function to FIR by frequency sampling method
i have function with respect to frequency. and i want to the function to FIR filter by using frequency sampling method i make ...
約4年 前 | 1 件の回答 | 0
1
回答質問
a complex to real valued IFFT
if i have fft data from signal, that have symmetry property and then i have to multiply complex number. when i multiply that, t...
約4年 前 | 0 件の回答 | 0
0
回答質問
inverse fourier transform of sqrt(j*w/c)
i have to calculate inverse fourier transform of sqrt(j*w/c) c: sound of speed w: frequency both og this will be constant
約4年 前 | 0 件の回答 | 0
0
回答質問
why the ctrb and obsv is not full in Modal Analysis of a Flexible Flying Wing Aircraft
here is example link Modal Analysis of a Flexible Flying Wing Aircraft - MATLAB & Simulink (mathworks.com) i know if the ac...
4年以上 前 | 0 件の回答 | 0
0
回答質問
ctrb and obsv of Modal Analysis Ex and OKID, ERA
i'm doing system identification while some problem in system identification with ERA, i find matlab in-house code and example ...
4年以上 前 | 1 件の回答 | 0
1
回答質問
data to transfer function (idfrd) error
data = importdata ('C:\Users\sangwoo\Desktop\mash_change_500Hz_tf.mat'); freq = 1:1:500; % frequency range w = freq*2*pi; %a...
4年以上 前 | 1 件の回答 | 0
1
回答質問
freqeuncy complex data convert to FIR filter
i have frequency domain data of plate. i want to convert to this data to FIR filter to model my system. i heard if i want to F...
4年以上 前 | 1 件の回答 | 0
