dec3hpfilter3.h

各种工程计算的库函数

/*

    Decimation filter for rate 3
    Copyright (C) 2002 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 lDec3hpFilterLen = 185l;

static const float fDec3hpFilterGain = 1.0f;
static const float fpDec3hpFilterCoeffs[] = {
    -1.6744135951788E-6,
    2.25564913853558E-6,
    2.80437187253005E-20,
    -4.6159728814049E-6,
    7.3117087048762E-6,
    -3.11755974315232E-6,
    -7.62105312919144E-6,
    1.63825317308268E-5,
    -1.19954553615034E-5,
    -7.76135611102017E-6,
    2.90910592518865E-5,
    -2.98609445619302E-5,
    -1.29833877476296E-19,
    4.24600895529503E-5,
    -5.89097058820719E-5,
    2.24539322701837E-5,
    4.98253842156195E-5,
    -9.8386632333776E-5,
    6.6804568572632E-5,
    4.03936587699073E-5,
    -0.000142396808637311,
    0.000138212720519623,
    -1.90549839760961E-19,
    -0.000178047948409349,
    0.000236402503889069,
    -8.64924749021988E-5,
    -0.000184721338357759,
    0.000351897102677188,
    -0.000231006520894752,
    -0.000135301804539218,
    0.000462826688633192,
    -0.000436597914315499,
    -1.31634262523249E-18,
    0.000533503948283232,
    -0.000691207245110825,
    0.000247049395922575,
    0.00051597755364538,
    -0.000962201509059481,
    0.000618888396049153,
    0.00035547290662345,
    -0.00119341582668219,
    0.00110576341133556,
    8.01246032081147E-18,
    -0.00130640285625865,
    0.00166598646220205,
    -0.000586476898089871,
    -0.00120717990958296,
    0.00221994774271686,
    -0.00140889500349417,
    -0.000798932759681302,
    0.002649572539732,
    -0.00242641755060079,
    -4.74071821697122E-18,
    0.00280495737910109,
    -0.00354115594387684,
    0.00123476358547362,
    0.00251884237127389,
    -0.00459311953705988,
    0.00289217149157428,
    0.0016281199573114,
    -0.00536340496189594,
    0.00488186757055627,
    7.11475192555503E-18,
    -0.00558606569168042,
    0.00702356298443997,
    -0.00244092616183204,
    -0.00496681129234518,
    0.00904197087688826,
    -0.00568932405582452,
    -0.00320362557803171,
    0.0105680060876195,
    -0.00964411103599802,
    -9.40702177357093E-18,
    0.0111390631891317,
    -0.0141056070489869,
    0.00494664819217201,
    0.0101790013078303,
    -0.0187869440802335,
    0.012019699879788,
    0.00690580957814338,
    -0.023339553204812,
    0.0219303511892057,
    1.10798713690749E-17,
    -0.0273900779734071,
    0.0365579656214836,
    -0.0136856452093744,
    -0.0305838793111507,
    0.0628100665160661,
    -0.0463727526706215,
    -0.0326288468458354,
    0.151037725435059,
    -0.2573757883086,
    0.299995536282891,
    -0.2573757883086,
    0.151037725435059,
    -0.0326288468458354,
    -0.0463727526706215,
    0.0628100665160661,
    -0.0305838793111507,
    -0.0136856452093744,
    0.0365579656214836,
    -0.0273900779734071,
    1.10798713690749E-17,
    0.0219303511892057,
    -0.023339553204812,
    0.00690580957814338,
    0.012019699879788,
    -0.0187869440802335,
    0.0101790013078303,
    0.00494664819217201,
    -0.0141056070489869,
    0.0111390631891317,
    -9.40702177357093E-18,
    -0.00964411103599802,
    0.0105680060876195,
    -0.00320362557803171,
    -0.00568932405582452,
    0.00904197087688826,
    -0.00496681129234518,
    -0.00244092616183204,
    0.00702356298443997,
    -0.00558606569168042,
    7.11475192555503E-18,
    0.00488186757055627,
    -0.00536340496189594,
    0.0016281199573114,
    0.00289217149157428,
    -0.00459311953705988,
    0.00251884237127389,
    0.00123476358547362,
    -0.00354115594387684,
    0.00280495737910109,
    -4.74071821697122E-18,
    -0.00242641755060079,
    0.002649572539732,
    -0.000798932759681302,
    -0.00140889500349417,
    0.00221994774271686,
    -0.00120717990958296,
    -0.000586476898089871,
    0.00166598646220205,
    -0.00130640285625865,
    8.01246032081147E-18,
    0.00110576341133556,
    -0.00119341582668219,
    0.00035547290662345,
    0.000618888396049153,
    -0.000962201509059481,
    0.00051597755364538,
    0.000247049395922575,
    -0.000691207245110825,
    0.000533503948283232,
    -1.31634262523249E-18,
    -0.000436597914315499,
    0.000462826688633192,
    -0.000135301804539218,
    -0.000231006520894752,
    0.000351897102677188,
    -0.000184721338357759,
    -8.64924749021988E-5,
    0.000236402503889069,
    -0.000178047948409349,
    -1.90549839760961E-19,
    0.000138212720519623,
    -0.000142396808637311,
    4.03936587699073E-5,
    6.6804568572632E-5,
    -9.8386632333776E-5,
    4.98253842156195E-5,
    2.24539322701837E-5,
    -5.89097058820719E-5,
    4.24600895529503E-5,
    -1.29833877476296E-19,
    -2.98609445619302E-5,
    2.90910592518865E-5,
    -7.76135611102017E-6,
    -1.19954553615034E-5,
    1.63825317308268E-5,
    -7.62105312919144E-6,
    -3.11755974315232E-6,
    7.3117087048762E-6,
    -4.6159728814049E-6,
    2.80437187253005E-20,
    2.25564913853558E-6,
    -1.6744135951788E-6
};


static const double dDec3hpFilterGain = 1.0;
static const double dpDec3hpFilterCoeffs[] = {
    -1.6744135951788E-6,
    2.25564913853558E-6,
    2.80437187253005E-20,
    -4.6159728814049E-6,
    7.3117087048762E-6,
    -3.11755974315232E-6,
    -7.62105312919144E-6,
    1.63825317308268E-5,
    -1.19954553615034E-5,
    -7.76135611102017E-6,
    2.90910592518865E-5,
    -2.98609445619302E-5,
    -1.29833877476296E-19,
    4.24600895529503E-5,
    -5.89097058820719E-5,
    2.24539322701837E-5,
    4.98253842156195E-5,
    -9.8386632333776E-5,
    6.6804568572632E-5,
    4.03936587699073E-5,
    -0.000142396808637311,
    0.000138212720519623,
    -1.90549839760961E-19,
    -0.000178047948409349,
    0.000236402503889069,
    -8.64924749021988E-5,
    -0.000184721338357759,
    0.000351897102677188,
    -0.000231006520894752,
    -0.000135301804539218,
    0.000462826688633192,
    -0.000436597914315499,
    -1.31634262523249E-18,
    0.000533503948283232,
    -0.000691207245110825,
    0.000247049395922575,
    0.00051597755364538,
    -0.000962201509059481,
    0.000618888396049153,
    0.00035547290662345,
    -0.00119341582668219,
    0.00110576341133556,
    8.01246032081147E-18,
    -0.00130640285625865,
    0.00166598646220205,
    -0.000586476898089871,
    -0.00120717990958296,
    0.00221994774271686,
    -0.00140889500349417,
    -0.000798932759681302,
    0.002649572539732,
    -0.00242641755060079,
    -4.74071821697122E-18,
    0.00280495737910109,
    -0.00354115594387684,
    0.00123476358547362,
    0.00251884237127389,
    -0.00459311953705988,
    0.00289217149157428,
    0.0016281199573114,
    -0.00536340496189594,
    0.00488186757055627,
    7.11475192555503E-18,
    -0.00558606569168042,
    0.00702356298443997,
    -0.00244092616183204,
    -0.00496681129234518,
    0.00904197087688826,
    -0.00568932405582452,
    -0.00320362557803171,
    0.0105680060876195,
    -0.00964411103599802,
    -9.40702177357093E-18,
    0.0111390631891317,
    -0.0141056070489869,
    0.00494664819217201,
    0.0101790013078303,
    -0.0187869440802335,
    0.012019699879788,
    0.00690580957814338,
    -0.023339553204812,
    0.0219303511892057,
    1.10798713690749E-17,
    -0.0273900779734071,
    0.0365579656214836,
    -0.0136856452093744,
    -0.0305838793111507,
    0.0628100665160661,
    -0.0463727526706215,
    -0.0326288468458354,
    0.151037725435059,
    -0.2573757883086,
    0.299995536282891,
    -0.2573757883086,
    0.151037725435059,
    -0.0326288468458354,
    -0.0463727526706215,
    0.0628100665160661,
    -0.0305838793111507,
    -0.0136856452093744,
    0.0365579656214836,
    -0.0273900779734071,
    1.10798713690749E-17,
    0.0219303511892057,
    -0.023339553204812,
    0.00690580957814338,
    0.012019699879788,
    -0.0187869440802335,
    0.0101790013078303,
    0.00494664819217201,
    -0.0141056070489869,
    0.0111390631891317,
    -9.40702177357093E-18,
    -0.00964411103599802,
    0.0105680060876195,
    -0.00320362557803171,
    -0.00568932405582452,
    0.00904197087688826,
    -0.00496681129234518,
    -0.00244092616183204,
    0.00702356298443997,
    -0.00558606569168042,
    7.11475192555503E-18,
    0.00488186757055627,
    -0.00536340496189594,
    0.0016281199573114,
    0.00289217149157428,
    -0.00459311953705988,
    0.00251884237127389,
    0.00123476358547362,
    -0.00354115594387684,
    0.00280495737910109,
    -4.74071821697122E-18,
    -0.00242641755060079,
    0.002649572539732,
    -0.000798932759681302,
    -0.00140889500349417,
    0.00221994774271686,
    -0.00120717990958296,
    -0.000586476898089871,
    0.00166598646220205,
    -0.00130640285625865,
    8.01246032081147E-18,
    0.00110576341133556,
    -0.00119341582668219,
    0.00035547290662345,
    0.000618888396049153,
    -0.000962201509059481,
    0.00051597755364538,
    0.000247049395922575,
    -0.000691207245110825,
    0.000533503948283232,
    -1.31634262523249E-18,
    -0.000436597914315499,
    0.000462826688633192,
    -0.000135301804539218,
    -0.000231006520894752,
    0.000351897102677188,
    -0.000184721338357759,
    -8.64924749021988E-5,
    0.000236402503889069,
    -0.000178047948409349,
    -1.90549839760961E-19,
    0.000138212720519623,
    -0.000142396808637311,
    4.03936587699073E-5,
    6.6804568572632E-5,
    -9.8386632333776E-5,
    4.98253842156195E-5,
    2.24539322701837E-5,
    -5.89097058820719E-5,
    4.24600895529503E-5,
    -1.29833877476296E-19,
    -2.98609445619302E-5,
    2.90910592518865E-5,
    -7.76135611102017E-6,
    -1.19954553615034E-5,
    1.63825317308268E-5,
    -7.62105312919144E-6,
    -3.11755974315232E-6,
    7.3117087048762E-6,
    -4.6159728814049E-6,
    2.80437187253005E-20,
    2.25564913853558E-6,
    -1.6744135951788E-6
};