Add functions to get ground motion/velocity/PSD
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src/getGroundDisplacement.m
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src/getGroundDisplacement.m
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% getGroundDisplacement
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% :PROPERTIES:
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% :header-args:matlab+: :tangle getGroundDisplacement.m
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% :header-args:matlab+: :comments org :mkdirp yes
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% :header-args:matlab+: :eval no :results none
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% :END:
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% <<sec:getGroundDisplacement>>
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% This Matlab function is accessible [[file:getGroundDisplacement.m][here]].
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function [time, displacement] = getGroundDisplacement()
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% getGroundDisplacement -
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%
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% Syntax: [time, displacement] = voltageToVelocityL22()
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%
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% Inputs:
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% - -
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%
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% Outputs:
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% - time - in [s]
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% - displacement - in [m]
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s = zpk('s');
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[time, velocity] = getGroundVelocity();
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displacement = lsim(1/s, velocity, time);
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end
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37
src/getGroundVelocity.m
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src/getGroundVelocity.m
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% getGroundVelocity
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% :PROPERTIES:
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% :header-args:matlab+: :tangle getGroundVelocity.m
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% :header-args:matlab+: :comments org :mkdirp yes
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% :header-args:matlab+: :eval no :results none
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% :END:
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% <<sec:getGroundVelocity>>
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% This Matlab function is accessible [[file:getGroundVelocity.m][here]].
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function [time, velocity] = getGroundVelocity()
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% getGroundVelocity -
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%
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% Syntax: [time, velocity] = voltageToVelocityL22()
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%
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% Inputs:
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% - -
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%
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% Outputs:
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% - time - in [s]
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% - velocity - in [m/s]
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current_dir = pwd;
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src_dir = mfilename('fullpath');
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src_dir = strsplit(src_dir, '/');
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src_dir = strjoin(src_dir(1:end-1), '/');
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cd(src_dir);
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data = load('mat/data_028.mat', 'data'); data = data.data;
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time = data(:, 3);
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[velocity] = voltageToVelocityL22(data(:, 1), time, 60);
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cd(current_dir);
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end
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23
src/getPSDGroundDisplacement.m
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src/getPSDGroundDisplacement.m
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% getPSDGroundDisplacement
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% :PROPERTIES:
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% :header-args:matlab+: :tangle getPSDGroundDisplacement.m
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% :header-args:matlab+: :comments org :mkdirp yes
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% :header-args:matlab+: :eval no :results none
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% :END:
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% <<sec:getPSDGroundDisplacement>>
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% This Matlab function is accessible [[file:getPSDGroundDisplacement.m][here]].
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function [pxx, f] = getPSDGroundDisplacement()
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% getPSDGroundDisplacement -
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%
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% Syntax: [pxx, f] = voltageToVelocityL22(in_data)
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%
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% Outputs:
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% - pxx -
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% - f -
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[pxx, f] = getPSDGroundVelocity();
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pxx = (sqrt(pxx)./(2*pi*f)).^2;
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src/getPSDGroundVelocity.m
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src/getPSDGroundVelocity.m
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% getPSDGroundVelocity
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% :PROPERTIES:
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% :header-args:matlab+: :tangle getPSDGroundVelocity.m
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% :header-args:matlab+: :comments org :mkdirp yes
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% :header-args:matlab+: :eval no :results none
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% :END:
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% <<sec:getPSDGroundVelocity>>
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% This Matlab function is accessible [[file:getPSDGroundVelocity.m][here]].
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function [pxx, f] = getPSDGroundVelocity()
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% getPSDGroundVelocity -
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%
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% Syntax: [pxx, f] = voltageToVelocityL22(in_data)
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%
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% Outputs:
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% - psd -
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% - f -
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[time, velocity] = getGroundVelocity();
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dt = time(2) - time(1);
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Fs = 1/dt;
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win = hanning(ceil(10*Fs));
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[pxx, f] = pwelch(velocity, win, [], [], Fs);
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src/index.html
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src/index.html
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<!-- 2019-05-14 mar. 17:09 -->
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<title>Matlab Function useful for the analysis</title>
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<body>
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<div id="content">
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<h1 class="title">Matlab Function useful for the analysis</h1>
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<div id="table-of-contents">
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<h2>Table of Contents</h2>
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<div id="text-table-of-contents">
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<ul>
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<li><a href="#org1c58c54">1. voltageToVelocityL22</a></li>
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<li><a href="#org48fff36">2. voltageToDisplacementL22</a></li>
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</ul>
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</div>
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</div>
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<div id="outline-container-org1c58c54" class="outline-2">
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<h2 id="org1c58c54"><span class="section-number-2">1</span> voltageToVelocityL22</h2>
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<div class="outline-text-2" id="text-1">
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<p>
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<a id="org9aa2e00"></a>
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</p>
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<p>
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This Matlab function is accessible <a href="voltageToVelocityL22.m">here</a>.
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</p>
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<div class="org-src-container">
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<pre class="src src-matlab"><span class="org-keyword">function</span> <span class="org-variable-name"><span class="org-rainbow-delimiters-depth-1">[</span></span><span class="org-variable-name">velocity</span><span class="org-variable-name"><span class="org-rainbow-delimiters-depth-1">]</span></span> = <span class="org-function-name">voltageToVelocityL22</span><span class="org-rainbow-delimiters-depth-1">(</span><span class="org-variable-name">voltage</span>, <span class="org-variable-name">time</span>, <span class="org-variable-name">gain</span><span class="org-rainbow-delimiters-depth-1">)</span>
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<span class="org-comment">% voltageToVelocityL22 -</span>
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<span class="org-comment">%</span>
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<span class="org-comment">% Syntax: [velocity] = voltageToVelocityL22(voltage, time, gain)</span>
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<span class="org-comment">%</span>
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<span class="org-comment">% Inputs:</span>
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<span class="org-comment">% - voltage - Measured voltage</span>
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<span class="org-comment">% - time - Time vector</span>
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<span class="org-comment">% - gain - Gain of the voltage amplifier in dB</span>
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<span class="org-comment">%</span>
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<span class="org-comment">% Outputs:</span>
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<span class="org-comment">% - velocity -</span>
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</pre>
|
||||
</div>
|
||||
|
||||
<div class="org-src-container">
|
||||
<pre class="src src-matlab">s = zpk<span class="org-rainbow-delimiters-depth-1">(</span><span class="org-string">'s'</span><span class="org-rainbow-delimiters-depth-1">)</span>;
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="org-src-container">
|
||||
<pre class="src src-matlab">S0 = <span class="org-highlight-numbers-number">88</span>; <span class="org-comment">% Sensitivity [V/(m/s)]</span>
|
||||
f0 = <span class="org-highlight-numbers-number">2</span>; <span class="org-comment">% Cut-off frequnecy [Hz]</span>
|
||||
|
||||
S = S0<span class="org-type">*</span><span class="org-rainbow-delimiters-depth-1">(</span>s<span class="org-type">/</span><span class="org-highlight-numbers-number">2</span><span class="org-type">/</span><span class="org-constant">pi</span><span class="org-type">/</span>f0<span class="org-rainbow-delimiters-depth-1">)</span><span class="org-type">/</span><span class="org-rainbow-delimiters-depth-1">(</span><span class="org-highlight-numbers-number">1</span><span class="org-type">+</span>s<span class="org-type">/</span><span class="org-highlight-numbers-number">2</span><span class="org-type">/</span><span class="org-constant">pi</span><span class="org-type">/</span>f0<span class="org-rainbow-delimiters-depth-1">)</span>;
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="org-src-container">
|
||||
<pre class="src src-matlab">velocity = lsim<span class="org-rainbow-delimiters-depth-1">(</span><span class="org-rainbow-delimiters-depth-2">(</span>S<span class="org-type">*</span><span class="org-highlight-numbers-number">10</span><span class="org-type">^</span><span class="org-rainbow-delimiters-depth-3">(</span>gain<span class="org-type">/</span><span class="org-highlight-numbers-number">20</span><span class="org-rainbow-delimiters-depth-3">)</span><span class="org-rainbow-delimiters-depth-2">)</span><span class="org-type">\</span><span class="org-highlight-numbers-number">1</span>, voltage, time<span class="org-rainbow-delimiters-depth-1">)</span>;
|
||||
</pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div id="outline-container-org48fff36" class="outline-2">
|
||||
<h2 id="org48fff36"><span class="section-number-2">2</span> voltageToDisplacementL22</h2>
|
||||
<div class="outline-text-2" id="text-2">
|
||||
<p>
|
||||
<a id="orgde50f5e"></a>
|
||||
</p>
|
||||
|
||||
<p>
|
||||
This Matlab function is accessible <a href="voltageToDisplacementL22.m">here</a>.
|
||||
</p>
|
||||
|
||||
<div class="org-src-container">
|
||||
<pre class="src src-matlab"><span class="org-keyword">function</span> <span class="org-variable-name"><span class="org-rainbow-delimiters-depth-1">[</span></span><span class="org-variable-name">disp</span><span class="org-variable-name"><span class="org-rainbow-delimiters-depth-1">]</span></span> = <span class="org-function-name">voltageToDisplacementL22</span><span class="org-rainbow-delimiters-depth-1">(</span><span class="org-variable-name">voltage</span>, <span class="org-variable-name">time</span>, <span class="org-variable-name">gain</span><span class="org-rainbow-delimiters-depth-1">)</span>
|
||||
<span class="org-comment">% voltageToDisplacementL22 -</span>
|
||||
<span class="org-comment">%</span>
|
||||
<span class="org-comment">% Syntax: [disp] = voltageToDisplacementL22(voltage, time, gain)</span>
|
||||
<span class="org-comment">%</span>
|
||||
<span class="org-comment">% Inputs:</span>
|
||||
<span class="org-comment">% - voltage - Measured voltage</span>
|
||||
<span class="org-comment">% - time - Time vector</span>
|
||||
<span class="org-comment">% - gain - Gain of the voltage amplifier in dB</span>
|
||||
<span class="org-comment">%</span>
|
||||
<span class="org-comment">% Outputs:</span>
|
||||
<span class="org-comment">% - disp -</span>
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="org-src-container">
|
||||
<pre class="src src-matlab">s = zpk<span class="org-rainbow-delimiters-depth-1">(</span><span class="org-string">'s'</span><span class="org-rainbow-delimiters-depth-1">)</span>;
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="org-src-container">
|
||||
<pre class="src src-matlab">voltage = voltage <span class="org-type">-</span> mean<span class="org-rainbow-delimiters-depth-1">(</span>voltage<span class="org-rainbow-delimiters-depth-1">)</span>;
|
||||
|
||||
velocity = voltageToVelocityL22<span class="org-rainbow-delimiters-depth-1">(</span>voltage, time, gain<span class="org-rainbow-delimiters-depth-1">)</span>;
|
||||
|
||||
disp = lsim<span class="org-rainbow-delimiters-depth-1">(</span><span class="org-highlight-numbers-number">1</span><span class="org-type">/</span>s, velocity, time<span class="org-rainbow-delimiters-depth-1">)</span>;
|
||||
</pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div id="postamble" class="status">
|
||||
<p class="author">Author: Thomas Dehaeze</p>
|
||||
<p class="date">Created: 2019-05-14 mar. 17:09</p>
|
||||
<p class="validation"><a href="http://validator.w3.org/check?uri=referer">Validate</a></p>
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
BIN
src/mat/data_028.mat
Normal file
BIN
src/mat/data_028.mat
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Reference in New Issue
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