Short: FIR Filter Designer V1.01 Author: harald.zottmann@ntc.nokia.com Uploader: harald.zottmann@ntc.nokia.com Version: 1.01 Type: misc/sci Replaces: misc/sci/FIRDesign* FIR Filter Designer =================== This is the second Aminet release of the FilterDesigner. The program designs optimized Finite Impulse Response (FIR) Filters. There are optimized versions for the MC 68000 MC 68020 MC 68040 OS 2.x is required. The program makes use of big Workbench screens but runs on every standard Amiga. The problem of designing finite impulse response (FIR) digital filters experienced great activity in the early 1970`s. Most of this work was directed at the problem of optimal filter design, in the weighted Chebyshev sense. The algorithm for this program, by McClellan, Parks and Rabiner, will design the optimal Chebyshev approximation for linear phase filters. The Chebyshev optimization is done very efficiently by means of the Remez exchange algorithm, and this particular FIR filter design program has found wide use. History ======= Version - Date - Comments V1.00 - 21.07.1995 - First Aminet Release V1.01 - 29.11.1995 - Second Aminet Release Fixed several Enforcer Hits (Thanks to Jukka Marin) Fixed Bug with not updating gadgets Recompiled with SAS/C V6.56 Less Shareware Requesters Installer Script Added Pattern in Filerequester More Examples ============================= Archive contents ============================= Original Packed Ratio Date Time Name -------- ------- ----- --------- -------- ------------- 588 121 79.4% 20-May-94 14:56:20 +Bandpass.FIR 588 81 86.2% 20-May-94 15:12:44 +Differentiator.FIR 12139 4046 66.6% 29-Nov-95 21:14:04 +FIRDesign.guide 509 262 48.5% 29-Nov-95 19:16:02 +FIRDesign.guide.info 1604 773 51.8% 29-Nov-95 21:17:00 +FIRDesign.readme 1432 540 62.2% 29-Nov-95 19:16:02 +FIRDesign.readme.info 6563 472 92.8% 29-Nov-95 19:16:02 +FIRDesign68000.info 6563 476 92.7% 29-Nov-95 19:16:02 +FIRDesign68020.info 60032 30241 49.6% 29-Nov-95 20:59:28 +FIRDesign68040 6563 475 92.7% 29-Nov-95 19:16:02 +FIRDesign68040.info 588 91 84.5% 29-Nov-95 19:24:40 +Highpass.FIR 588 85 85.5% 20-May-94 15:14:10 +Hilbert.FIR 588 92 84.3% 29-Nov-95 19:23:04 +Lowpass.FIR 588 100 82.9% 29-Nov-95 19:28:32 +Multipass.FIR 673 322 52.1% 29-Nov-95 19:16:02 FIRDesigner.info 4259 1184 72.2% 29-Nov-95 21:09:12 +FIRDesign.install 756 406 46.2% 29-Nov-95 19:16:02 +FIRDesign.install.info 61140 30859 49.5% 29-Nov-95 21:06:06 +FIRDesign68000 60088 30279 49.6% 29-Nov-95 21:01:40 +FIRDesign68020 588 101 82.8% 29-Nov-95 19:34:10 +Notch.FIR -------- ------- ----- --------- -------- 226437 101006 55.3% 02-Dec-95 17:23:52 20 files