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已同步 2025-08-07 04:56:51 +08:00
More updates to Taguchi optimisation docs.
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@@ -22,7 +22,7 @@ Information
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AustinMan and AustinWoman (http://bit.ly/AustinMan) are open source electromagnetic voxel models of the human body, which are developed by the Computational Electromagnetics Group (http://www.ece.utexas.edu/research/areas/electromagnetics-acoustics) at The University of Texas at Austin (http://www.utexas.edu). The models are based on data from the National Library of Medicine’s Visible Human Project (https://www.nlm.nih.gov/research/visible/visible_human.html).
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.. figure:: images/AustinMan_head.png
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.. figure:: images/user_libs/AustinMan_head.png
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:width: 600 px
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FDTD geometry mesh showing the head of the AustinMan model (2x2x2mm^3).
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@@ -68,7 +68,7 @@ To insert a 2x2x2mm^3 AustinMan with the lower left corner 40mm from the origin
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For further information on the `#geometry_objects_file` see the section on object contruction commands in the :ref:`Input commands section <commands>`.
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.. figure:: images/AustinMan.png
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.. figure:: images/user_libs/AustinMan.png
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:width: 300 px
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FDTD geometry mesh showing the AustinMan body model (2x2x2mm^3).
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@@ -22,7 +22,7 @@ Information
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#
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# Please use the attribution at http://dx.doi.org/10.1190/1.3548506
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The package features an optimisation technique based on Taguchi's method. It allows the user to define parameters in an input file and optimise their values based on a fitness function.
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The package features an optimisation technique based on Taguchi's method. It allows users to define parameters in an input file and optimise their values based on a fitness function, for example it can be used to optimise material properties or geometry in a simulation.
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Taguchi's method
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.. code-block:: none
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antenna_bowtie_opt.in
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OA_9_4_3_2.npy
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OA_18_7_3_2.npy
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optimisation_taguchi_fitness.py
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optimisation_taguchi_plot.py
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* ``antenna_bowtie_opt.in`` is a example model of a bowtie antenna where values of loading resistors are optimised.
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* ``OA_9_4_3_2.npy`` and ``OA_18_7_3_2.npy`` are NumPy archives containing pre-built OAs from http://neilsloane.com/oadir/
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* ``optimisation_taguchi_fitness.py`` is a module containing fitness functions. There are some pre-built ones but users should add their own here.
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* ``optimisation_taguchi_plot.py`` is a module for plotting the results, such as parameter values and convergence history, from an optimisation process when it has completed.
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@@ -58,7 +60,7 @@ Implementation
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The process by which Taguchi's method optimises parameters is illustrated in the following figure.
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.. figure:: images/taguchi_process.png
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.. figure:: images/user_libs/taguchi_process.png
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:width: 300 px
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Process associated with Taguchi's method.
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@@ -93,3 +95,8 @@ Example
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The following example demonstrates using the Taguchi optimisation process to optimise values of loading resistors used in a bowtie antenna. The bowtie design features 3 slots in each arm of the bowtie where loading resistors are placed, and a substrate with a perimittivity of 4.8 is used. The antenna is modelled in free space, and an output point (the electric field value) is specified at a distance of 60 mm from the feed of the bowtie.
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.. figure:: images/user_libs/antenna_bowtie_opt.png
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:width: 600 px
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FDTD geometry mesh showing bowtie antenna with slots and loading resistors.
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