文件列表:

ptfsf (0, 2005-08-19)
ptfsf\fdtdgen.h (2928, 2004-01-17)
ptfsf\Makefile (718, 2004-01-17)
ptfsf\ptfsf-demo-file.c (8126, 2004-01-17)
ptfsf\ptfsf-demo.c (11238, 2004-01-17)
ptfsf\ptfsf-file-maker.c (7756, 2004-01-17)
ptfsf\ptfsf.c (46025, 2004-01-17)
ptfsf\ptfsf.h (5970, 2004-01-17)
ptfsf\runit-demo (87, 2004-01-17)
ptfsf\runit-file-gen (88, 2004-01-17)
ptfsf\runit-file-use (82, 2004-01-17)

This distribution contains code which implements the "perfect" total-field/scattered-field boundary condition as described in a paper submitted to the IEEE Transactions on Antennas and Propagation. You should read that paper before using this code (even though that paper provides no explanation of how to use this code). The code assumes a two-dimensional computational domain with TMz polarization (i.e., non-zero field Ez, Hx, and Hy). The program is currently written so that the incident field always strikes the lower-left corner of the total-field region first. (If you want a different corner, that should be a fairly simple tweak to the code, but for now you'll have to make that tweak yourself.) I have attempted to provide copious comments in the code and hope that a knowledgeable C programmer can quickly map the approach as described in the paper to what is in the program. The following files are provided: ptfsf.c -- heart of the perfect TFSF code ptfsf.h -- header file for same ptfsf-demo.c -- FDTD code which demonstrates use of perfect TFSF code. essentially this program used to generate results shown in the paper (output written for four observations points) ptfsf-file-maker.c -- code to generate an incident-field file using the "perfect" incident fields ptfsf-demo-file.c -- FDTD code which uses the perfect incident fields stored in a file fdtdgen.h -- defines macros used in much of my code Makefile -- simple makefile to compile programs. this make file should work on "reasonable" UNIX-based systems with the GNU compiler installed (known to work on a Mac running OS X 10.3). You may add the -DTIMING directive if you want timing output. README -- this file runit-demo -- script to run the demo with reasonable input runit-file-gen -- script to run file maker with reasonable input runit-file-use -- script to use previously generated incident-field file There is no reason you would have to use these scripts. The programs are designed to be run interactively, but the scripts are there if want them. Edit them for you particular needs. You must have the FFTw routines installed to use the code as written. See www.fftw.org for details. Alternatively, you could modify the code and use your own FFT's, but I would discourage that. If you have questions, comments, suggestions, or especially improvements or bug fixes, please let me know! However, please keep in mind that this code is provided "as is" and I may not be able to incorporate edits, make modifications, or fully address any questions you have. Enjoy, John Schneider January, 2004 schneidj@eecs.wsu.edu

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