不韋 呂 / Mbed 2 deprecated F446_DSP_FunctionGenerator

ファンクション･ジェネレータ

Dependencies:   mbed SerialTxRxIntr MyTicker7 Array_Matrix

CoefficientsIIR_Cascade.hpp@1:ea5aa7f3d68c, 2020-12-23 (annotated)

Committer:
MikamiUitOpen
Date:
Wed Dec 23 01:07:09 2020 +0000
Revision:
1:ea5aa7f3d68c
Parent:
0:17c762b41fc7 
2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:17c762b41fc7 1 //----------------------------------------------------------------------
MikamiUitOpen 0:17c762b41fc7 2 // IIR フィルタの係数，縦続形，float 型
MikamiUitOpen 0:17c762b41fc7 3 //
MikamiUitOpen 0:17c762b41fc7 4 // 2020/10/17, Copyright (c) 2020 MIKAMI, Naoki
MikamiUitOpen 0:17c762b41fc7 5 //----------------------------------------------------------------------
MikamiUitOpen 0:17c762b41fc7 6
MikamiUitOpen 0:17c762b41fc7 7 #include "Biquad.hpp"
MikamiUitOpen 0:17c762b41fc7 8 using namespace Mikami;
MikamiUitOpen 0:17c762b41fc7 9
MikamiUitOpen 0:17c762b41fc7 10 // 低域通過フィルタ
MikamiUitOpen 0:17c762b41fc7 11 // 連立チェビシェフ特性
MikamiUitOpen 0:17c762b41fc7 12 // 次数　　　　： 4 次
MikamiUitOpen 0:17c762b41fc7 13 // 標本化周波数：400.00 kHz
MikamiUitOpen 0:17c762b41fc7 14 // 遮断周波数　： 20.00 kHz
MikamiUitOpen 0:17c762b41fc7 15 // 通過域のリップル： 0.50 dB
MikamiUitOpen 0:17c762b41fc7 16 // 阻止域の減衰量　：40.00 dB
MikamiUitOpen 0:17c762b41fc7 17 const int ORDER_ = 4;
MikamiUitOpen 0:17c762b41fc7 18 const Biquad::Coefs hk_[] = {
MikamiUitOpen 0:17c762b41fc7 19 { 1.712306E+00f, -7.512093E-01f, -9.111378E-01f, 1.0f},
MikamiUitOpen 0:17c762b41fc7 20 { 1.819915E+00f, -9.194769E-01f, -1.719255E+00f, 1.0f}};
MikamiUitOpen 0:17c762b41fc7 21 const float G0_ = 1.196187E-02f; // 利得定数