SPECTRUM V 2.1 Dear SPECTRUM V 2.1 user, Please find enclosed a copy of SPECTRUM V 2.1. The diskette should contain, in addition to this file, a self-extracting file called SPEC21.EXE and a batch file INSTALL.BAT. Simply enter the following command line from the floppy drive containing the diskette: INSTALL where is the location on the hard disk where the files are to be stored. The following files will be placed in the directory specified by the user : README 1ST 5618 07-11-94 1:33p This file SPECTRUM CFG 1197 04-23-92 3:50p Optional setup file COLOR EXE 57452 04-23-92 3:07p Executable for noise generator COLOR2 EXE 57872 04-23-92 3:13p Executable for 2-chan noise gen MAKCOEF EXE 44388 04-23-92 3:11p Coeff. file creation executable MAKDAT EXE 55910 07-11-94 1:18p Asc to Bin converter executable SINE EXE 50490 04-23-92 3:09p Executable for sinewave gen SPEC387 EXE 103912 07-23-92 8:26a Works only with 386/387 or better SPECTRUM EXE 111704 07-23-92 8:29a Works with or w/o a coprocessor SPECTRUM FI 1852 04-22-92 7:59a Interface statements SPECTRUM FN 2406 04-22-92 8:04a Data declaration & common areas COLOR FOR 8314 04-22-92 8:05a Source for noise generator COLOR2 FOR 9073 04-23-92 3:13p Source for 2-chan noise generator MAKCOEF FOR 6296 04-22-92 8:07a Coefficient file creation source MAKDAT FOR 13906 07-11-94 1:14p Ascii to Binary converter source SINE FOR 4371 04-22-92 8:06a Source for sinewave generator SPECTRUM FOR 66207 07-23-92 8:23a Main program source code In addition, a subdirectory .. \DOCS will be created containing the following documentation files: SPECTRUM ASC 155015 04-29-92 1:56p Ascii 73-page manual SPEC_V2 ASC 31519 04-29-92 2:06p Ascii 19-page V 2.0 update SPEC1 BAT 2931 07-09-94 4:45p Prints out ps files for manual SPEC2 BAT 1076 07-09-94 4:48p Prints out ps files for update TOC PS 24474 07-09-94 1:47p Postscript front matter for manual P63A PS 87849 07-09-94 1:52p Postscript page 63 - first pass P63B PS 5991 07-09-94 1:53p Postscript page 63 - second pass SPECTRUM PS 1272270 07-09-94 2:03p Postscript remainder of manual SPEC2 PS 195601 06-29-94 9:32a Postscript 19-page V 2.0 update These files include a 73-page manual describing version 1.0 of SPECTRUM and a 19-page update release for version 2.0 which describes the improvements that have been added to the routine. This documentation is enclosed both as ASCII files and as Postscript files. Unfortunately, the equations and graphs do not survive the ASCII conversion process and do not appear in the ASCII documentation files. The Postscript files contain the full documentation and are to be preferred over the ASCII files. One must, however, have a printer capable of printing in Postscript mode. If such a printer is available, then the user simply runs the batch files and follows the directions. Note that the 73-page manual has been published as a NIST report and is also available from NTIS: Hess, D.E. 1991 Spectral Analysis on a PC, National Institute of Standards and Technology, NISTIR 4733, NTIS PB-92-116342. If a Postscript printer is not available, and the ASCII documentation will not suffice, a limited number of hard copies of the documentation are available until the supply runs out. A FREE copy may be obtained in this instance by writing to the author at the address given below. Note that version 2.1 of SPECTRUM is different from version 2.0 as follows: 1. The main routine incorporates a minor improvement suggested by a user. 2. The MAKDAT utility has been upgraded to accept parameters included on the command line for use in batch mode processing. Instructions for usage are included on page 1 of the MAKDAT.FOR source file. 3. Postscript versions of the documentation have been included. This program was developed for use with the Compliant Surface Program in the Fluid Flow Group; this group is a part of the Process Measurements Division at the National Institute of Standards and Technology. With the evolution of the SPECTRUM routine to its present form, the author felt that the program may perhaps be of some utility to others. Therefore, SPECTRUM is being released as freeware. This program, the source code and accompanying utilities may be freely copied and distributed, but may not be sold. There is no warranty of SPECTRUM's suitability for any purpose, nor any acceptance of liability, express or implied. This program has been subjected to extensive testing and appears to be free of any bugs; however, it is possible that not all situations have been anticipated. The author encourages any modifications to or customization of the source code as required by the user, and welcomes any suggested improvements or bug-fixes. Please direct all correspondence to the address given below. Sincerely yours, Dr. David E. Hess Mechanical Engineer, Fluid Flow Group The following address will be valid UNTIL October 1, 1994 : National Institute of Standards and Technology Building 230 Room 105 Gaithersburg, MD 20899 Phone : (301) 975-5937 Fax : (301) 258-9201 Email : hess@enh.nist.gov (Internet) The following address should be used AFTER October 1, 1994 : Dr. David E. Hess 4998 B5 Dorsey Hall Drive Ellicott City, MD 21042