AFD - Advanced Filter Design
DDFR - Drawing Digital Filter Realizations -- version 1.00 for MATLAB
Miroslav D. Lutovac, Dejan V. Tosic -- This program is freeware.
"Drawing Digital Filter Realizations" (DDFR) is
a MATLAB toolbox for creating schematics of digital filters.
By mouse point-and-click you draw digital filters in
MATLAB figure windows. The filter schematic is saved as an M-file,
and can be called as a stand alone function. You can use this
function in your MATLAB code to illustrate or document
the filter realization that you work on. Alternatively, with DDFR
You can produce publication quality filter schematics;
the diagrams can be imported into your word processor as
EPS, WMF, or BMP figures. DDFR is easy to use, intuitive, and it is
based on standard built-in MATLAB commands.
INSTALLATION: DDFR is distributed in compressed form as the file
drawdfil.zip, Create a directory, say drawdfil, and decompress
drawdfil.zip into it. Run MATLAB and execute the drawdfil.m file.
DRAWING: After invoking drawdfil.m the DDFR main window appears,
and you can draw a digital filter realization.
A digital filter realization is a network of interconnected
adders, multipliers, and unit delays; press the DELAY, MULT, or
ADDER button to draw these blocks. The input and output nodes
are specified by mouse click, and are snapped to the grid.
The block is centered between the selected nodes.
For example, if you want to draw a unit delay block, press the
DELAY button, point and click where the input node should
appear, and point and click where the output node should appear;
the delay block appears centered between the two nodes.
NOTE. You can draw only horizontal or vertical blocks.
LINE, _|, |_ buttons draw line segments which connect blocks.
IN and OUT buttons draw small circles that
serve to identify filter input and output, respectively.
NODE button puts a dot that designates a node.
DELETE button scans all schematic items and you can mark
components that should be deleted. Press redraw to see the effect.
TEXT button adds text label to the schematic.
Save your schematic with the SAVE button, load it
by pressing the LOAD button, or view it with the VIEW button.
VIEW displays a filter without grid.
SAVE, LOAD and VIEW operate on a file named auxfilt.m,
which can be converted to eps format with the EPS button.
Various realization parameters can be edited by EDIT button.
Switch to the MATLAB command window to accomplish editing.
After you finish drawing, press SAVE to save the schematic.
The schematic will reside in auxfilt.m file, which you have
to rename if you want to keep it.
Issue the help command to see how to call auxfilt.m as a
MATLAB function, i.e. type "help auxfilt" in the command window.
The example buttons show various filter schematics and
the process of creating a more complex filter from simpler sections.
EXPORT to Mathematica: The schematic created by DDFR can be
exported as a Mathematica procedure with the MA button;
the file auxfilt.m is converted to the Mathematica script drawdfax.m.
See the sample Mathematica notebook auxfilt.ma to learn
how to invoke the filter schematic.
See also: Miroslav D. Lutovac, Dejan V. Tosic, and Brian L. Evans
"Advanced Filter Design for Signal Processing Using MATLAB & Mathematica"
http://galeb.etf.bg.ac.yu/~lutovac or http://telekom.etf.bg.ac.yu/~tosic
To gain access to updates of this free-of-charge software
you should be added to our AFD e-mail list, so contact us at
lutovac@galeb.etf.bg.ac.yu or tosic@telekom.etf.bg.ac.yu
We welcome your feedback -- your suggestions are appreciated.
----------------- end-of-readmedd.txt ------------------------
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usint_MATLABMiroslav.rar_afd (383个子文件)
LOWPASS1.DAT 82B
TMPSPEC.DAT 82B
BPBIEY.DAT 38B
BANDREJE.DAT 34B
BANDPASS.DAT 33B
WRONGBP1.DAT 33B
BPBIEY1.DAT 33B
BANDREJE.DAT 32B
BANDPASS.DAT 31B
BPSAAL1.DAT 29B
BRSAAL1.DAT 28B
LPSAAL.DAT 22B
LPSAAL2.DAT 22B
HIGHPASS.DAT 20B
WRONGUNS.DAT 20B
LPBIEY.DAT 20B
LOWPASS.DAT 20B
WRONGNEG.DAT 19B
USERSPEC.DAT 18B
WRONGLP2.DAT 18B
WRONGLP1.DAT 18B
HIGHPASS.DAT 17B
LOWPASS.DAT 17B
USERSPEC.DAT 16B
WRONGSPE.DAT 15B
WRONGINS.DAT 15B
AFDEDIT.M 26KB
DFDEDIT.M 26KB
DRAWDLIB.M 24KB
DRAWAPDF.M 13KB
DRAWDEL.M 12KB
AFDESBUT.M 10KB
DFDESBUT.M 10KB
DRAWIIRF.M 7KB
BDRWMA.M 7KB
BUTDRAW.M 7KB
BUTDRAW.M 7KB
BDRWEDIT.M 6KB
AFALBUT.M 6KB
DFDOPEN.M 6KB
DRAWLC.M 6KB
AFDOPEN.M 6KB
BDRWEDIT.M 6KB
AFDSBUTT.M 5KB
DFDSBUTT.M 5KB
AFD3D5.M 5KB
DRAWCS.M 5KB
DRAWWDFG.M 5KB
AFD2D5.M 5KB
EXAMPLE3.M 4KB
DRAWADD.M 4KB
DRAWMULT.M 4KB
DRAWSUM.M 4KB
DFDZOOM.M 4KB
EXAMPLE4.M 4KB
AUXFILT.M 4KB
AFDZOOM.M 4KB
AFDD5.M 4KB
DRAWAMP.M 4KB
DRAWAMP.M 4KB
DRAWAMP.M 4KB
AFDD4B.M 4KB
AFDD5B.M 4KB
SCALBUT.M 4KB
AUXFILT2.M 4KB
EXAMPLE5.M 4KB
AFDESIGN.M 4KB
AFDD3B.M 4KB
AFDD4A.M 4KB
AFDD2.M 4KB
AFDD3A.M 4KB
AFDD1.M 4KB
DRAWCC.M 4KB
DRAWCC.M 4KB
DFDSPACE.M 4KB
DFDESIGN.M 4KB
AFDSPACE.M 4KB
EXAMPLE4.M 4KB
DFDHR.M 3KB
DFDHB.M 3KB
DEMODS.M 3KB
EXAMPLE2.M 3KB
DFD2D5.M 3KB
DEMOAS.M 3KB
DRAWDFAX.M 3KB
EXAMPLE2.M 3KB
EXAMPLE3.M 3KB
DRAWIND.M 3KB
AFDVIEW.M 3KB
DFDTRAN.M 3KB
AFDTRAN.M 3KB
DFDVIEW.M 3KB
DRAWOUTP.M 3KB
DRAWL.M 3KB
DRAWINP.M 3KB
AFDSCOMP.M 3KB
DFDSCOMP.M 3KB
DFDSTOP.M 3KB
DFDD5.M 3KB
DFDPLOT.M 3KB
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