dec3hpiir3.h

各种工程计算的库函数

/*

    IIR Decimation filter for rate 3 (highpass)
    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


/* f1: 0.33333,  f2: 0.34167, r: 0.1, a: 96, t: elliptic */

/*static const long lDec3hpIIRSize = 8l;

static const float fpDec3hpIIRCoeffs[][5] = {
{ // 0
    0.0532151204481016,
    -0.0556095578414634,
    0.0532151204481016,
    -1.42590878667061,
    -0.587948585408279
},
{ // 1
    0.188817711362083,
    0.00731449588591847,
    0.188817711362083,
    -1.32616446021101,
    -0.69648538704926
},
{ // 2
    0.405472650977335,
    0.230250588727635,
    0.405472650977335,
    -1.22567974913643,
    -0.806374462363461
},
{ // 3
    0.617371719998023,
    0.49954033295057,
    0.617371719998023,
    -1.15249036567959,
    -0.887693472725061
},
{ // 4
    0.771512506258032,
    0.71192562397335,
    0.771512506258032,
    -1.10834000808461,
    -0.939439396627325
},
{ // 5
    0.863947780294666,
    0.843326061565994,
    0.863947780294666,
    -1.08627956726684,
    -0.970849066290181
},
{ // 6
    0.908502197138431,
    0.906241218609219,
    0.908502197138431,
    -1.08060948339595,
    -0.991372659063591
},
{ // 7
    0.132524985024051,
    -0.132524985024051,
    0,
    -0.734950029951898,
    0
}
};


static const double dpDec3hpIIRCoeffs[][5] = {
{ // 0
    0.0532151204481016,
    -0.0556095578414634,
    0.0532151204481016,
    -1.42590878667061,
    -0.587948585408279
},
{ // 1
    0.188817711362083,
    0.00731449588591847,
    0.188817711362083,
    -1.32616446021101,
    -0.69648538704926
},
{ // 2
    0.405472650977335,
    0.230250588727635,
    0.405472650977335,
    -1.22567974913643,
    -0.806374462363461
},
{ // 3
    0.617371719998023,
    0.49954033295057,
    0.617371719998023,
    -1.15249036567959,
    -0.887693472725061
},
{ // 4
    0.771512506258032,
    0.71192562397335,
    0.771512506258032,
    -1.10834000808461,
    -0.939439396627325
},
{ // 5
    0.863947780294666,
    0.843326061565994,
    0.863947780294666,
    -1.08627956726684,
    -0.970849066290181
},
{ // 6
    0.908502197138431,
    0.906241218609219,
    0.908502197138431,
    -1.08060948339595,
    -0.991372659063591
},
{ // 7
    0.132524985024051,
    -0.132524985024051,
    0,
    -0.734950029951898,
    0
}
};*/


/* f1: 0.33333,  f2: 0.34167, r: 0.1, a: 96, t: elliptic */

static const long lDec3hpIIRSize = 9l;

static const float fpDec3hpIIRCoeffs[][5] = {
{ // 0
    0.0408188593764457,
    -0.0492079463009502,
    0.0408188593764457,
    -1.48699558491155,
    -0.617841249965396
},
{ // 1
    0.143685036105185,
    -0.0227464867454071,
    0.143685036105185,
    -1.39106746929454,
    -0.701184028250316
},
{ // 2
    0.32283718923554,
    0.137767246957536,
    0.32283718923554,
    -1.28537867078234,
    -0.793285802295889
},
{ // 3
    0.521937947915603,
    0.374850045712181,
    0.521937947915603,
    -1.19962114304601,
    -0.868646993165034
},
{ // 4
    0.688302531212309,
    0.596235253104623,
    0.688302531212309,
    -1.14102044355734,
    -0.921390252877333
},
{ // 5
    0.804169407254514,
    0.758312853663764,
    0.804169407254514,
    -1.10560544086235,
    -0.955631401707618
},
{ // 6
    0.874315446101548,
    0.858368069397897,
    0.874315446101548,
    -1.08744667187195,
    -0.977709494677148
},
{ // 7
    0.908934502283608,
    0.90716977094238,
    0.908934502283608,
    -1.08253416825182,
    -0.993233401876658
},
{ // 8
    0.118221157568635,
    -0.118221157568635,
    0,
    -0.763557684862729,
    0
}
};


static const double dpDec3hpIIRCoeffs[][5] = {
{ // 0
    0.0408188593764457,
    -0.0492079463009502,
    0.0408188593764457,
    -1.48699558491155,
    -0.617841249965396
},
{ // 1
    0.143685036105185,
    -0.0227464867454071,
    0.143685036105185,
    -1.39106746929454,
    -0.701184028250316
},
{ // 2
    0.32283718923554,
    0.137767246957536,
    0.32283718923554,
    -1.28537867078234,
    -0.793285802295889
},
{ // 3
    0.521937947915603,
    0.374850045712181,
    0.521937947915603,
    -1.19962114304601,
    -0.868646993165034
},
{ // 4
    0.688302531212309,
    0.596235253104623,
    0.688302531212309,
    -1.14102044355734,
    -0.921390252877333
},
{ // 5
    0.804169407254514,
    0.758312853663764,
    0.804169407254514,
    -1.10560544086235,
    -0.955631401707618
},
{ // 6
    0.874315446101548,
    0.858368069397897,
    0.874315446101548,
    -1.08744667187195,
    -0.977709494677148
},
{ // 7
    0.908934502283608,
    0.90716977094238,
    0.908934502283608,
    -1.08253416825182,
    -0.993233401876658
},
{ // 8
    0.118221157568635,
    -0.118221157568635,
    0,
    -0.763557684862729,
    0
}
};