dec2hpfilter2.h

各种工程计算的库函数

/*

    Decimation filter for rate 2
    Copyright (C) 2001 Jussi Laako

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/


#ifdef _MSC_VER
#pragma warning(disable:4305)
#endif


static const long lDec2hpFilterLen = 181l;

static const float fDec2hpFilterGain =  1.0f;
static const float fpDec2hpFilterCoeffs[] = {
    1.51677963743032E-5,
    -2.12356138591085E-5,
    -2.07673029716065E-5,
    3.72972285343745E-5,
    2.41723330749168E-5,
    -5.90544587901616E-5,
    -2.34422669344103E-5,
    8.66962687022174E-5,
    1.62558157797625E-5,
    -0.000119855945661192,
    -1.6253841917436E-18,
    0.000157461347415186,
    -2.8092672271637E-5,
    -0.000197602731760729,
    7.0758709342261E-5,
    0.000237431954464951,
    -0.000130473200021533,
    -0.000273107023448113,
    0.000209181585735834,
    0.000299795244297823,
    -0.000308004601576327,
    -0.000311746420336693,
    0.000426930937051031,
    0.000302444783171379,
    -0.000564515257337938,
    -0.000264844603731904,
    0.000717601545081079,
    0.000191689921209318,
    -0.000881093026248391,
    -7.59137517316639E-5,
    0.00104779003177996,
    -8.88932129414668E-5,
    -0.00120831588353897,
    0.00030795969704445,
    0.00135114822036689,
    -0.000584776863168041,
    -0.00146276912823186,
    0.000920531453093884,
    0.00152794213137515,
    -0.00131355609568234,
    -0.0015301177551404,
    0.0017588251596944,
    0.00145196228672818,
    -0.00224752402730421,
    -0.00127599690935273,
    0.00276671708568075,
    0.000985326991601885,
    -0.00329913488868916,
    -0.000564434428031609,
    0.00382309367458977,
    2.39567199738277E-17,
    -0.0043125505791386,
    0.000718281820598307,
    0.004737285209941,
    -0.00159693600328124,
    -0.00506318226627823,
    0.00263802918077245,
    0.00525256962315151,
    -0.003838620690209,
    -0.00526453980886472,
    0.00519037848653687,
    0.00505514631447798,
    -0.00667939013154692,
    -0.00457731237712618,
    0.00828619125279836,
    0.0037802045354143,
    -0.00998602443595495,
    -0.0026076779529806,
    0.0117493309104661,
    0.000995136526756793,
    -0.0135424661479722,
    0.00113635906807661,
    0.0153286192091758,
    -0.00389095022056731,
    -0.0170689049661966,
    0.00741832808514376,
    0.0187235887993283,
    -0.0119535997388452,
    -0.0202533955764551,
    0.0179012340819739,
    0.0216208491435652,
    -0.026031262736546,
    -0.0227915855456015,
    0.0380117042896855,
    0.0237355829807463,
    -0.0582178729061806,
    -0.0244282541373485,
    0.102776157031988,
    0.0248513519804365,
    -0.31712164193183,
    0.474879311935802,
    -0.31712164193183,
    0.0248513519804365,
    0.102776157031988,
    -0.0244282541373485,
    -0.0582178729061806,
    0.0237355829807463,
    0.0380117042896855,
    -0.0227915855456015,
    -0.026031262736546,
    0.0216208491435652,
    0.0179012340819739,
    -0.0202533955764551,
    -0.0119535997388452,
    0.0187235887993283,
    0.00741832808514376,
    -0.0170689049661966,
    -0.00389095022056731,
    0.0153286192091758,
    0.00113635906807661,
    -0.0135424661479722,
    0.000995136526756793,
    0.0117493309104661,
    -0.0026076779529806,
    -0.00998602443595495,
    0.0037802045354143,
    0.00828619125279836,
    -0.00457731237712618,
    -0.00667939013154692,
    0.00505514631447798,
    0.00519037848653687,
    -0.00526453980886472,
    -0.003838620690209,
    0.00525256962315151,
    0.00263802918077245,
    -0.00506318226627823,
    -0.00159693600328124,
    0.004737285209941,
    0.000718281820598307,
    -0.0043125505791386,
    2.39567199738277E-17,
    0.00382309367458977,
    -0.000564434428031609,
    -0.00329913488868916,
    0.000985326991601885,
    0.00276671708568075,
    -0.00127599690935273,
    -0.00224752402730421,
    0.00145196228672818,
    0.0017588251596944,
    -0.0015301177551404,
    -0.00131355609568234,
    0.00152794213137515,
    0.000920531453093884,
    -0.00146276912823186,
    -0.000584776863168041,
    0.00135114822036689,
    0.00030795969704445,
    -0.00120831588353897,
    -8.88932129414668E-5,
    0.00104779003177996,
    -7.59137517316639E-5,
    -0.000881093026248391,
    0.000191689921209318,
    0.000717601545081079,
    -0.000264844603731904,
    -0.000564515257337938,
    0.000302444783171379,
    0.000426930937051031,
    -0.000311746420336693,
    -0.000308004601576327,
    0.000299795244297823,
    0.000209181585735834,
    -0.000273107023448113,
    -0.000130473200021533,
    0.000237431954464951,
    7.0758709342261E-5,
    -0.000197602731760729,
    -2.8092672271637E-5,
    0.000157461347415186,
    -1.6253841917436E-18,
    -0.000119855945661192,
    1.62558157797625E-5,
    8.66962687022174E-5,
    -2.34422669344103E-5,
    -5.90544587901616E-5,
    2.41723330749168E-5,
    3.72972285343745E-5,
    -2.07673029716065E-5,
    -2.12356138591085E-5,
    1.51677963743032E-5
};


static const double dDec2hpFilterGain =  1.0;
static const double dpDec2hpFilterCoeffs[] = {
    1.51677963743032E-5,
    -2.12356138591085E-5,
    -2.07673029716065E-5,
    3.72972285343745E-5,
    2.41723330749168E-5,
    -5.90544587901616E-5,
    -2.34422669344103E-5,
    8.66962687022174E-5,
    1.62558157797625E-5,
    -0.000119855945661192,
    -1.6253841917436E-18,
    0.000157461347415186,
    -2.8092672271637E-5,
    -0.000197602731760729,
    7.0758709342261E-5,
    0.000237431954464951,
    -0.000130473200021533,
    -0.000273107023448113,
    0.000209181585735834,
    0.000299795244297823,
    -0.000308004601576327,
    -0.000311746420336693,
    0.000426930937051031,
    0.000302444783171379,
    -0.000564515257337938,
    -0.000264844603731904,
    0.000717601545081079,
    0.000191689921209318,
    -0.000881093026248391,
    -7.59137517316639E-5,
    0.00104779003177996,
    -8.88932129414668E-5,
    -0.00120831588353897,
    0.00030795969704445,
    0.00135114822036689,
    -0.000584776863168041,
    -0.00146276912823186,
    0.000920531453093884,
    0.00152794213137515,
    -0.00131355609568234,
    -0.0015301177551404,
    0.0017588251596944,
    0.00145196228672818,
    -0.00224752402730421,
    -0.00127599690935273,
    0.00276671708568075,
    0.000985326991601885,
    -0.00329913488868916,
    -0.000564434428031609,
    0.00382309367458977,
    2.39567199738277E-17,
    -0.0043125505791386,
    0.000718281820598307,
    0.004737285209941,
    -0.00159693600328124,
    -0.00506318226627823,
    0.00263802918077245,
    0.00525256962315151,
    -0.003838620690209,
    -0.00526453980886472,
    0.00519037848653687,
    0.00505514631447798,
    -0.00667939013154692,
    -0.00457731237712618,
    0.00828619125279836,
    0.0037802045354143,
    -0.00998602443595495,
    -0.0026076779529806,
    0.0117493309104661,
    0.000995136526756793,
    -0.0135424661479722,
    0.00113635906807661,
    0.0153286192091758,
    -0.00389095022056731,
    -0.0170689049661966,
    0.00741832808514376,
    0.0187235887993283,
    -0.0119535997388452,
    -0.0202533955764551,
    0.0179012340819739,
    0.0216208491435652,
    -0.026031262736546,
    -0.0227915855456015,
    0.0380117042896855,
    0.0237355829807463,
    -0.0582178729061806,
    -0.0244282541373485,
    0.102776157031988,
    0.0248513519804365,
    -0.31712164193183,
    0.474879311935802,
    -0.31712164193183,
    0.0248513519804365,
    0.102776157031988,
    -0.0244282541373485,
    -0.0582178729061806,
    0.0237355829807463,
    0.0380117042896855,
    -0.0227915855456015,
    -0.026031262736546,
    0.0216208491435652,
    0.0179012340819739,
    -0.0202533955764551,
    -0.0119535997388452,
    0.0187235887993283,
    0.00741832808514376,
    -0.0170689049661966,
    -0.00389095022056731,
    0.0153286192091758,
    0.00113635906807661,
    -0.0135424661479722,
    0.000995136526756793,
    0.0117493309104661,
    -0.0026076779529806,
    -0.00998602443595495,
    0.0037802045354143,
    0.00828619125279836,
    -0.00457731237712618,
    -0.00667939013154692,
    0.00505514631447798,
    0.00519037848653687,
    -0.00526453980886472,
    -0.003838620690209,
    0.00525256962315151,
    0.00263802918077245,
    -0.00506318226627823,
    -0.00159693600328124,
    0.004737285209941,
    0.000718281820598307,
    -0.0043125505791386,
    2.39567199738277E-17,
    0.00382309367458977,
    -0.000564434428031609,
    -0.00329913488868916,
    0.000985326991601885,
    0.00276671708568075,
    -0.00127599690935273,
    -0.00224752402730421,
    0.00145196228672818,
    0.0017588251596944,
    -0.0015301177551404,
    -0.00131355609568234,
    0.00152794213137515,
    0.000920531453093884,
    -0.00146276912823186,
    -0.000584776863168041,
    0.00135114822036689,
    0.00030795969704445,
    -0.00120831588353897,
    -8.88932129414668E-5,
    0.00104779003177996,
    -7.59137517316639E-5,
    -0.000881093026248391,
    0.000191689921209318,
    0.000717601545081079,
    -0.000264844603731904,
    -0.000564515257337938,
    0.000302444783171379,
    0.000426930937051031,
    -0.000311746420336693,
    -0.000308004601576327,
    0.000299795244297823,
    0.000209181585735834,
    -0.000273107023448113,
    -0.000130473200021533,
    0.000237431954464951,
    7.0758709342261E-5,
    -0.000197602731760729,
    -2.8092672271637E-5,
    0.000157461347415186,
    -1.6253841917436E-18,
    -0.000119855945661192,
    1.62558157797625E-5,
    8.66962687022174E-5,
    -2.34422669344103E-5,
    -5.90544587901616E-5,
    2.41723330749168E-5,
    3.72972285343745E-5,
    -2.07673029716065E-5,
    -2.12356138591085E-5,
    1.51677963743032E-5
};