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已同步 2025-08-07 15:10:13 +08:00
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@@ -9,11 +9,11 @@ This section provides some example models of antennas. Each example comes with a
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Wire dipole antenna model
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=========================
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:download:`antenna_wire_dipole_fs.in <../../examples/antenna_wire_dipole_fs.in>`
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:download:`antenna_wire_dipole_fs.in <../../examples/antenna_wire_dipole_fs.py>`
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This example demonstrates a model of a half-wavelength wire dipole antenna in free space. It is a balanced antenna and it's characteristics are well known from theory [BAL2005]_. The length of the dipole is 150mm with a 1mm gap between the arms.
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.. literalinclude:: ../../examples/antenna_wire_dipole_fs.in
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.. literalinclude:: ../../examples/antenna_wire_dipole_fs.py
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:language: none
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:linenos:
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@@ -28,7 +28,7 @@ You can view the results (see :ref:`output` and :ref:`tools<plotting>` sections)
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.. code-block:: none
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python -m tools.plot_antenna_params examples/antenna_wire_dipole_fs.out
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python -m tools.plot_antenna_params examples/antenna_wire_dipole_fs.h5
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.. _antenna_wire_dipole_fs_tl_params:
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@@ -90,7 +90,7 @@ When the simulation is run two geometry files for the antenna are produced along
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.. code-block:: none
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python -m tools.plot_Ascan examples/antenna_like_MALA_1200_fs.out --outputs Ey
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python -m tools.plot_Ascan examples/antenna_like_MALA_1200_fs.h5 --outputs Ey
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:numref:`antenna_like_MALA_1200_fs_results` shows the time history of the y-component of the electric field from the receiver bowtie of the antenna model (the antenna bowties are aligned with the y axis).
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@@ -137,7 +137,7 @@ After merging the A-scans into a single file you can now view an image of the B-
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.. code-block:: none
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python -m tools.plot_Bscan examples/cylinder_Bscan_GSSI_1500_merged.out Ey
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python -m tools.plot_Bscan examples/cylinder_Bscan_GSSI_1500_merged.h5 Ey
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:numref:`cylinder_Bscan_GSSI_1500_results` shows the B-scan (of the Ey field component). The initial part of the signal (~1-2 ns) represents the direct wave from transmitter to receiver. Then comes a hyperbolic response from the metal cylinder.
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@@ -49,13 +49,13 @@ Since the number of voxels are 108 x 88 108 and the spatial discretisation chose
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The following is an example of a ``materials.txt`` file that can be used with the generated geometry file (HDF5 format) when importing into gprMax. Since ``-matindex`` is set to 2 the material with name ``hdpe``, i.e. a plastic, will be used.
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.. literalinclude:: examples/materials.txt
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.. literalinclude:: ../../toolboxes/STLtoVoxel/examples/materials.txt
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:language: none
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:linenos:
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The following Python script (using the gprMax API) can be used to import the generated geometry file ``Stanford_Bunny.h5`` and materials file ``materials.txt`` into a gprMax model:
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.. literalinclude:: examples/bunny.py
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.. literalinclude:: ../../toolboxes/STLtoVoxel/examples/bunny.py
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:language: python
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:linenos:
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