dec4hpfilter3.h

各种工程计算的库函数

/*

    Decimation filter for rate 4
    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 lDec4hpFilterLen = 165l;

static const float fDec4hpFilterGain =  1.0f;
static const float fpDec4hpFilterCoeffs[] = {
    -1.92071398797553E-6,
    2.03604539155559E-6,
    -7.34228803933825E-21,
    -4.4355653352385E-6,
    9.60398603110586E-6,
    -1.20049596292216E-5,
    7.8486926239531E-6,
    4.32905040198371E-6,
    -2.13222647062588E-5,
    3.49399023297179E-5,
    -3.48737585075291E-5,
    1.42799957024312E-5,
    2.4351509900292E-5,
    -6.66201935045862E-5,
    8.98415580662666E-5,
    -7.30727960546492E-5,
    9.93561485809359E-6,
    8.23034135645121E-5,
    -0.000163976780755642,
    0.000187366693090648,
    -0.000120331247643089,
    -3.10851726227946E-5,
    0.000213918708113445,
    -0.000342398754338789,
    0.000333888297684442,
    -0.000153432160355243,
    -0.000154591146215665,
    0.000468034142566449,
    -0.000629655614771379,
    0.000519022990541535,
    -0.000123420167781229,
    -0.000429269041216462,
    0.000901724846079232,
    -0.00104131996053241,
    0.000703483549093644,
    5.18731713526269E-5,
    -0.000945507787523001,
    0.00157045415730703,
    -0.00156640325495687,
    0.000806735419464004,
    0.000492280333268303,
    -0.00180956022590389,
    0.00251423237395881,
    -0.00215147739008029,
    0.000695993219946426,
    0.00135669704257282,
    -0.00313480986591848,
    0.00374242219424362,
    -0.00268500747014638,
    0.000175703357882111,
    0.00284528408119287,
    -0.00503552176507783,
    0.00522104396996773,
    -0.00298095154162514,
    -0.00102982191994516,
    0.00521455640873832,
    -0.00763475535313134,
    0.00686669439667706,
    -0.00275213361583507,
    -0.00332493533743678,
    0.00883813265245085,
    -0.0111135577148935,
    0.0085502096648898,
    -0.0015372036830175,
    -0.00740070205384166,
    0.0144152960226015,
    -0.0158840907910735,
    0.0101110761901953,
    0.00156070735666523,
    -0.0148131856941935,
    0.0237531821879442,
    -0.0232531116146487,
    0.0113808246881241,
    0.0090863435765579,
    -0.0308211947790649,
    0.0439518721830242,
    -0.0393675997991685,
    0.012211023313723,
    0.035737446838171,
    -0.0957701327543418,
    0.154336819259236,
    -0.196927759630999,
    0.212497225959962,
    -0.196927759630999,
    0.154336819259236,
    -0.0957701327543418,
    0.035737446838171,
    0.012211023313723,
    -0.0393675997991685,
    0.0439518721830242,
    -0.0308211947790649,
    0.0090863435765579,
    0.0113808246881241,
    -0.0232531116146487,
    0.0237531821879442,
    -0.0148131856941935,
    0.00156070735666523,
    0.0101110761901953,
    -0.0158840907910735,
    0.0144152960226015,
    -0.00740070205384166,
    -0.0015372036830175,
    0.0085502096648898,
    -0.0111135577148935,
    0.00883813265245085,
    -0.00332493533743678,
    -0.00275213361583507,
    0.00686669439667706,
    -0.00763475535313134,
    0.00521455640873832,
    -0.00102982191994516,
    -0.00298095154162514,
    0.00522104396996773,
    -0.00503552176507783,
    0.00284528408119287,
    0.000175703357882111,
    -0.00268500747014638,
    0.00374242219424362,
    -0.00313480986591848,
    0.00135669704257282,
    0.000695993219946426,
    -0.00215147739008029,
    0.00251423237395881,
    -0.00180956022590389,
    0.000492280333268303,
    0.000806735419464004,
    -0.00156640325495687,
    0.00157045415730703,
    -0.000945507787523001,
    5.18731713526269E-5,
    0.000703483549093644,
    -0.00104131996053241,
    0.000901724846079232,
    -0.000429269041216462,
    -0.000123420167781229,
    0.000519022990541535,
    -0.000629655614771379,
    0.000468034142566449,
    -0.000154591146215665,
    -0.000153432160355243,
    0.000333888297684442,
    -0.000342398754338789,
    0.000213918708113445,
    -3.10851726227946E-5,
    -0.000120331247643089,
    0.000187366693090648,
    -0.000163976780755642,
    8.23034135645121E-5,
    9.93561485809359E-6,
    -7.30727960546492E-5,
    8.98415580662666E-5,
    -6.66201935045862E-5,
    2.4351509900292E-5,
    1.42799957024312E-5,
    -3.48737585075291E-5,
    3.49399023297179E-5,
    -2.13222647062588E-5,
    4.32905040198371E-6,
    7.8486926239531E-6,
    -1.20049596292216E-5,
    9.60398603110586E-6,
    -4.4355653352385E-6,
    -7.34228803933825E-21,
    2.03604539155559E-6,
    -1.92071398797553E-6
};


static const double dDec4hpFilterGain =  1.0;
static const double dpDec4hpFilterCoeffs[] = {
    -1.92071398797553E-6,
    2.03604539155559E-6,
    -7.34228803933825E-21,
    -4.4355653352385E-6,
    9.60398603110586E-6,
    -1.20049596292216E-5,
    7.8486926239531E-6,
    4.32905040198371E-6,
    -2.13222647062588E-5,
    3.49399023297179E-5,
    -3.48737585075291E-5,
    1.42799957024312E-5,
    2.4351509900292E-5,
    -6.66201935045862E-5,
    8.98415580662666E-5,
    -7.30727960546492E-5,
    9.93561485809359E-6,
    8.23034135645121E-5,
    -0.000163976780755642,
    0.000187366693090648,
    -0.000120331247643089,
    -3.10851726227946E-5,
    0.000213918708113445,
    -0.000342398754338789,
    0.000333888297684442,
    -0.000153432160355243,
    -0.000154591146215665,
    0.000468034142566449,
    -0.000629655614771379,
    0.000519022990541535,
    -0.000123420167781229,
    -0.000429269041216462,
    0.000901724846079232,
    -0.00104131996053241,
    0.000703483549093644,
    5.18731713526269E-5,
    -0.000945507787523001,
    0.00157045415730703,
    -0.00156640325495687,
    0.000806735419464004,
    0.000492280333268303,
    -0.00180956022590389,
    0.00251423237395881,
    -0.00215147739008029,
    0.000695993219946426,
    0.00135669704257282,
    -0.00313480986591848,
    0.00374242219424362,
    -0.00268500747014638,
    0.000175703357882111,
    0.00284528408119287,
    -0.00503552176507783,
    0.00522104396996773,
    -0.00298095154162514,
    -0.00102982191994516,
    0.00521455640873832,
    -0.00763475535313134,
    0.00686669439667706,
    -0.00275213361583507,
    -0.00332493533743678,
    0.00883813265245085,
    -0.0111135577148935,
    0.0085502096648898,
    -0.0015372036830175,
    -0.00740070205384166,
    0.0144152960226015,
    -0.0158840907910735,
    0.0101110761901953,
    0.00156070735666523,
    -0.0148131856941935,
    0.0237531821879442,
    -0.0232531116146487,
    0.0113808246881241,
    0.0090863435765579,
    -0.0308211947790649,
    0.0439518721830242,
    -0.0393675997991685,
    0.012211023313723,
    0.035737446838171,
    -0.0957701327543418,
    0.154336819259236,
    -0.196927759630999,
    0.212497225959962,
    -0.196927759630999,
    0.154336819259236,
    -0.0957701327543418,
    0.035737446838171,
    0.012211023313723,
    -0.0393675997991685,
    0.0439518721830242,
    -0.0308211947790649,
    0.0090863435765579,
    0.0113808246881241,
    -0.0232531116146487,
    0.0237531821879442,
    -0.0148131856941935,
    0.00156070735666523,
    0.0101110761901953,
    -0.0158840907910735,
    0.0144152960226015,
    -0.00740070205384166,
    -0.0015372036830175,
    0.0085502096648898,
    -0.0111135577148935,
    0.00883813265245085,
    -0.00332493533743678,
    -0.00275213361583507,
    0.00686669439667706,
    -0.00763475535313134,
    0.00521455640873832,
    -0.00102982191994516,
    -0.00298095154162514,
    0.00522104396996773,
    -0.00503552176507783,
    0.00284528408119287,
    0.000175703357882111,
    -0.00268500747014638,
    0.00374242219424362,
    -0.00313480986591848,
    0.00135669704257282,
    0.000695993219946426,
    -0.00215147739008029,
    0.00251423237395881,
    -0.00180956022590389,
    0.000492280333268303,
    0.000806735419464004,
    -0.00156640325495687,
    0.00157045415730703,
    -0.000945507787523001,
    5.18731713526269E-5,
    0.000703483549093644,
    -0.00104131996053241,
    0.000901724846079232,
    -0.000429269041216462,
    -0.000123420167781229,
    0.000519022990541535,
    -0.000629655614771379,
    0.000468034142566449,
    -0.000154591146215665,
    -0.000153432160355243,
    0.000333888297684442,
    -0.000342398754338789,
    0.000213918708113445,
    -3.10851726227946E-5,
    -0.000120331247643089,
    0.000187366693090648,
    -0.000163976780755642,
    8.23034135645121E-5,
    9.93561485809359E-6,
    -7.30727960546492E-5,
    8.98415580662666E-5,
    -6.66201935045862E-5,
    2.4351509900292E-5,
    1.42799957024312E-5,
    -3.48737585075291E-5,
    3.49399023297179E-5,
    -2.13222647062588E-5,
    4.32905040198371E-6,
    7.8486926239531E-6,
    -1.20049596292216E-5,
    9.60398603110586E-6,
    -4.4355653352385E-6,
    -7.34228803933825E-21,
    2.03604539155559E-6,
    -1.92071398797553E-6
};