dec3hpiir2.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: 0.36667, r: 0.1, a: 96, t: chebyshev */

static const long lDec3hpIIRSize = 10l;

static const float fpDec3hpIIRCoeffs[][5] = {
{  // 0
    0.165659780429826,
    -0.331319560859653,
    0.165659780429826,
    -1.32082211727018,
    -0.983461238989489
},
{  // 1
    0.155731136244846,
    -0.311462272489693,
    0.155731136244846,
    -1.32827931359428,
    -0.951203858573669
},
{  // 2
    0.139427805667894,
    -0.278855611335789,
    0.139427805667894,
    -1.36236989687593,
    -0.92008111954751
},
{  // 3
    0.117953815091953,
    -0.235907630183906,
    0.117953815091953,
    -1.41849366916396,
    -0.890308929531773
},
{  // 4
    0.0930095426315344,
    -0.186019085263069,
    0.0930095426315344,
    -1.4903302676734,
    -0.86236843819954
},
{  // 5
    0.0668186078603916,
    -0.133637215720783,
    0.0668186078603916,
    -1.56977415648028,
    -0.837048587921845
},
{  // 6
    0.0420495608397998,
    -0.0840991216795996,
    0.0420495608397998,
    -1.64722173560865,
    -0.815419978967847
},
{  // 7
    0.0215688056338112,
    -0.0431376112676223,
    0.0215688056338112,
    -1.7124397602221,
    -0.79871498275735
},
{  // 8
    0.00801312960521743,
    -0.0160262592104349,
    0.00801312960521743,
    -1.7560600728404,
    -0.788112591261268
},
{  // 9
    0.057147595912789,
    -0.057147595912789,
    0,
    -0.885704808174422,
    0
}
};


static const double dpDec3hpIIRCoeffs[][5] = {
{  // 0
    0.165659780429826,
    -0.331319560859653,
    0.165659780429826,
    -1.32082211727018,
    -0.983461238989489
},
{  // 1
    0.155731136244846,
    -0.311462272489693,
    0.155731136244846,
    -1.32827931359428,
    -0.951203858573669
},
{  // 2
    0.139427805667894,
    -0.278855611335789,
    0.139427805667894,
    -1.36236989687593,
    -0.92008111954751
},
{  // 3
    0.117953815091953,
    -0.235907630183906,
    0.117953815091953,
    -1.41849366916396,
    -0.890308929531773
},
{  // 4
    0.0930095426315344,
    -0.186019085263069,
    0.0930095426315344,
    -1.4903302676734,
    -0.86236843819954
},
{  // 5
    0.0668186078603916,
    -0.133637215720783,
    0.0668186078603916,
    -1.56977415648028,
    -0.837048587921845
},
{  // 6
    0.0420495608397998,
    -0.0840991216795996,
    0.0420495608397998,
    -1.64722173560865,
    -0.815419978967847
},
{  // 7
    0.0215688056338112,
    -0.0431376112676223,
    0.0215688056338112,
    -1.7124397602221,
    -0.79871498275735
},
{  // 8
    0.00801312960521743,
    -0.0160262592104349,
    0.00801312960521743,
    -1.7560600728404,
    -0.788112591261268
},
{  // 9
    0.057147595912789,
    -0.057147595912789,
    0,
    -0.885704808174422,
    0
}
};


/* f1: 0.33333,  f2: 0.35, r: 0.1, a: 96, t: chebyshev */

/*static const long lDec3hpIIRSize = 14l;

static const float fpDec3hpIIRCoeffs[][5] = {
{ // 0
    0.20612381560143,
    -0.41224763120286,
    0.20612381560143,
    -1.16655653140295,
    -0.991051793808671
},
{ // 1
    0.199956923120078,
    -0.399913846240156,
    0.199956923120078,
    -1.17353927246339,
    -0.973366964943707
},
{ // 2
    0.189687762426555,
    -0.379375524853111,
    0.189687762426555,
    -1.19717435026578,
    -0.955925399971997
},
{ // 3
    0.175623636079266,
    -0.351247272158532,
    0.175623636079266,
    -1.2362163802201,
    -0.938710924537166
},
{ // 4
    0.158198347032725,
    -0.316396694065451,
    0.158198347032725,
    -1.28896470202014,
    -0.921758090151041
},
{ // 5
    0.138000902722861,
    -0.276001805445722,
    0.138000902722861,
    -1.35316505184281,
    -0.905168662734252
},
{ // 6
    0.115803473284191,
    -0.231606946568382,
    0.115803473284191,
    -1.4259115081258,
    -0.889125401262565
},
{ // 7
    0.0925789944055267,
    -0.185157988811053,
    0.0925789944055267,
    -1.50358434370774,
    -0.873900321329847
},
{ // 8
    0.0694962089224376,
    -0.138992417844875,
    0.0694962089224376,
    -1.58186857525216,
    -0.859853410941906
},
{ // 9
    0.0478793602979917,
    -0.0957587205959835,
    0.0478793602979917,
    -1.65589991979591,
    -0.847417360987876
},
{ // 10
    0.0291234398087895,
    -0.0582468796175789,
    0.0291234398087895,
    -1.72057137841201,
    -0.837065137647169
},
{ // 11
    0.0145655023994335,
    -0.0291310047988669,
    0.0145655023994335,
    -1.77099876568531,
    -0.829260775283047
},
{ // 12
    0.00532730800397217,
    -0.0106546160079443,
    0.00532730800397217,
    -1.8030900620617,
    -0.824399294077589
},
{ // 13
    0.0464728891735737,
    -0.0464728891735737,
    0,
    -0.907054221652853,
    0
}
};


static const double dpDec3hpIIRCoeffs[][5] = {
{ // 0
    0.20612381560143,
    -0.41224763120286,
    0.20612381560143,
    -1.16655653140295,
    -0.991051793808671
},
{ // 1
    0.199956923120078,
    -0.399913846240156,
    0.199956923120078,
    -1.17353927246339,
    -0.973366964943707
},
{ // 2
    0.189687762426555,
    -0.379375524853111,
    0.189687762426555,
    -1.19717435026578,
    -0.955925399971997
},
{ // 3
    0.175623636079266,
    -0.351247272158532,
    0.175623636079266,
    -1.2362163802201,
    -0.938710924537166
},
{ // 4
    0.158198347032725,
    -0.316396694065451,
    0.158198347032725,
    -1.28896470202014,
    -0.921758090151041
},
{ // 5
    0.138000902722861,
    -0.276001805445722,
    0.138000902722861,
    -1.35316505184281,
    -0.905168662734252
},
{ // 6
    0.115803473284191,
    -0.231606946568382,
    0.115803473284191,
    -1.4259115081258,
    -0.889125401262565
},
{ // 7
    0.0925789944055267,
    -0.185157988811053,
    0.0925789944055267,
    -1.50358434370774,
    -0.873900321329847
},
{ // 8
    0.0694962089224376,
    -0.138992417844875,
    0.0694962089224376,
    -1.58186857525216,
    -0.859853410941906
},
{ // 9
    0.0478793602979917,
    -0.0957587205959835,
    0.0478793602979917,
    -1.65589991979591,
    -0.847417360987876
},
{ // 10
    0.0291234398087895,
    -0.0582468796175789,
    0.0291234398087895,
    -1.72057137841201,
    -0.837065137647169
},
{ // 11
    0.0145655023994335,
    -0.0291310047988669,
    0.0145655023994335,
    -1.77099876568531,
    -0.829260775283047
},
{ // 12
    0.00532730800397217,
    -0.0106546160079443,
    0.00532730800397217,
    -1.8030900620617,
    -0.824399294077589
},
{ // 13
    0.0464728891735737,
    -0.0464728891735737,
    0,
    -0.907054221652853,
    0
}
};*/