Changhyun Kim

Last seen: 8개월 전 | 2022년부터 활동

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how to convert the seismic wave data in Excel to Fourier spectrum using filtering and sampling
Given information Time domain signal file : GYEONGJU(USN).xlsx (attached) Sampling rate (frequency): 100Hz Acceleration value...

1년 초과 전 | 답변 수: 2 | 0

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how to convert the seismic wave data in Excel to fourier spectra
I want to convert the seismic wave data in the attached Excel file to the frequency [Hz] on the horizontal axis and the magnitu...

1년 초과 전 | 답변 수: 1 | 1

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I hope to show that aliasing occurs for more than one sinusoid
I want to show that aliasing occurs for more than one sinusoid, such as sample like this x(t) = 3*cos(2*pi*300*t+pi/3) + 8*cos(...

대략 2년 전 | 답변 수: 1 | 0

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I hope to use enough points and show only a few repetitions to make a smooth graph.
Plot the sinusoid 2*cos(2*pi*1500*t+pi/2), starting at t=0 seconds. I want to use enough points and show only a few repetitions...

대략 2년 전 | 답변 수: 1 | 0

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using acceleration record, Get velocity and displacement signal & carry out FFT and plot the spectra
Given information Time domain signal file : GEE Earthquke.xlsx (attached) Sampling rate (frequency): 64Hz Acceleration values...

대략 2년 전 | 답변 수: 1 | 0

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How to convert 183*5 matrix data into column vector data
I am wondering how to convert excel data in 183*5 matrix into column vector data. I hope to get the general code that converts ...

2년 초과 전 | 답변 수: 2 | 0

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Thankful Level 3