takanaka kouzou / Mbed 2 deprecated SDR_AM_Rx_CIC_FIR

AM中波放送用SDR．CICフィルタと通常のFIRフィルタを組み合わせて使用．CQ出版社「トランジスタ技術」誌に掲載予定

Dependencies:   mbed

CoefficientsLpf.hpp@0:9c28f5905a1a, 2020-08-29 (annotated)

Committer:
MikamiUitOpen
Date:
Sat Aug 29 11:25:01 2020 +0000
Revision:
0:9c28f5905a1a
1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:9c28f5905a1a 1 //------------------------------------------------------------------------
MikamiUitOpen 0:9c28f5905a1a 2 // Decimation 用フィルタ，2 段目
MikamiUitOpen 0:9c28f5905a1a 3 //
MikamiUitOpen 0:9c28f5905a1a 4 // 2020/07/23, Copyright (c) 2020 MIKAMI, Naoki
MikamiUitOpen 0:9c28f5905a1a 5 //------------------------------------------------------------------------
MikamiUitOpen 0:9c28f5905a1a 6
MikamiUitOpen 0:9c28f5905a1a 7 // 標本化周波数 (kHz) 100.000000
MikamiUitOpen 0:9c28f5905a1a 8 // 次数 50
MikamiUitOpen 0:9c28f5905a1a 9 // 帯域 1 帯域 2
MikamiUitOpen 0:9c28f5905a1a 10 // 下側帯域端周波数 (kHz) 0.000000 12.500000
MikamiUitOpen 0:9c28f5905a1a 11 // 上側帯域端周波数 (kHz) 7.500000 50.000000
MikamiUitOpen 0:9c28f5905a1a 12 // 利得 1.000000 0.000000
MikamiUitOpen 0:9c28f5905a1a 13 // 重み 1.000000 10.000000
MikamiUitOpen 0:9c28f5905a1a 14 // 偏差 0.013299 0.001330
MikamiUitOpen 0:9c28f5905a1a 15 // 偏差 [dB] 0.114754 -57.523511
MikamiUitOpen 0:9c28f5905a1a 16 const int ORDER_FIR_ = 50;
MikamiUitOpen 0:9c28f5905a1a 17 const float HN_[ORDER_FIR_/2+1] = {
MikamiUitOpen 0:9c28f5905a1a 18 1.414112E-03f, 1.777859E-03f, 1.955856E-03f, 1.163382E-03f,
MikamiUitOpen 0:9c28f5905a1a 19 -8.047561E-04f, -3.639701E-03f, -6.438639E-03f, -7.901061E-03f,
MikamiUitOpen 0:9c28f5905a1a 20 -6.803443E-03f, -2.615442E-03f, 3.991907E-03f, 1.102213E-02f,
MikamiUitOpen 0:9c28f5905a1a 21 1.558870E-02f, 1.488489E-02f, 7.415483E-03f, -5.952321E-03f,
MikamiUitOpen 0:9c28f5905a1a 22 -2.159831E-02f, -3.371720E-02f, -3.583729E-02f, -2.289379E-02f,
MikamiUitOpen 0:9c28f5905a1a 23 6.796584E-03f, 5.037598E-02f, 1.006114E-01f, 1.474710E-01f,
MikamiUitOpen 0:9c28f5905a1a 24 1.807161E-01f, 1.927341E-01f};