不韋 呂 / Mbed 2 deprecated CQ_DigitalFilterLab_ALE_Variable

CQエレクトロニクス･セミナ「実習・マイコンを動かしながら学ぶディジタル･フィルタ」で使う適応線スペクトル強調器（ALE）のプログラム．ステップサイズパラメータをターミナルから変更できる． http://seminar.cqpub.co.jp/ccm/ES18-0020

Dependencies:   F746_GUI F746_SAI_IO mbed

Filter/GaussRand.hpp@4:bde47691ec93, 2018-09-04 (annotated)

Committer:
MikamiUitOpen
Date:
Tue Sep 04 05:52:44 2018 +0000
Revision:
4:bde47691ec93
Parent:
0:c8e52f514e03 
5

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:c8e52f514e03 1 //---------------------------------------------------------
MikamiUitOpen 0:c8e52f514e03 2 // 線形合同法による一様乱数を使い，中心極限定理を利用する正規乱数発生
MikamiUitOpen 0:c8e52f514e03 3 // ＜文献＞
MikamiUitOpen 0:c8e52f514e03 4 // 三上直樹：「アルゴリズム教科書」，第11章，CQ出版，1996年．
MikamiUitOpen 0:c8e52f514e03 5 //
MikamiUitOpen 0:c8e52f514e03 6 // 2018/03/02, Copyright (c) 2018 MIKAMI, Naoki
MikamiUitOpen 0:c8e52f514e03 7 //---------------------------------------------------------
MikamiUitOpen 0:c8e52f514e03 8
MikamiUitOpen 0:c8e52f514e03 9 #include "Random.hpp"
MikamiUitOpen 0:c8e52f514e03 10
MikamiUitOpen 0:c8e52f514e03 11 namespace Mikami
MikamiUitOpen 0:c8e52f514e03 12 {
MikamiUitOpen 0:c8e52f514e03 13 class GaussRand
MikamiUitOpen 0:c8e52f514e03 14 {
MikamiUitOpen 0:c8e52f514e03 15 public:
MikamiUitOpen 0:c8e52f514e03 16 // sigma 標準偏差
MikamiUitOpen 0:c8e52f514e03 17 // av 平均値
MikamiUitOpen 0:c8e52f514e03 18 GaussRand(float sigma, float av)
MikamiUitOpen 0:c8e52f514e03 19 : sigma_(sigma), av_(av), rd_(901253) {}
MikamiUitOpen 0:c8e52f514e03 20 GaussRand(float sigma, float av, uint32_t x)
MikamiUitOpen 0:c8e52f514e03 21 : sigma_(sigma), av_(av), rd_(x) {}
MikamiUitOpen 0:c8e52f514e03 22
MikamiUitOpen 0:c8e52f514e03 23 // 中心極限定理を利用する正規乱数発生
MikamiUitOpen 0:c8e52f514e03 24 float Next()
MikamiUitOpen 0:c8e52f514e03 25 {
MikamiUitOpen 0:c8e52f514e03 26 float gauss = 0;
MikamiUitOpen 0:c8e52f514e03 27 for (int n=0; n<12; n++) gauss += rd_.Next();
MikamiUitOpen 0:c8e52f514e03 28 return sigma_*(gauss - 6.0f) + av_;
MikamiUitOpen 0:c8e52f514e03 29 }
MikamiUitOpen 0:c8e52f514e03 30
MikamiUitOpen 0:c8e52f514e03 31 private:
MikamiUitOpen 0:c8e52f514e03 32 float sigma_;
MikamiUitOpen 0:c8e52f514e03 33 float av_;
MikamiUitOpen 0:c8e52f514e03 34 Mikami::Random rd_;
MikamiUitOpen 0:c8e52f514e03 35 };
MikamiUitOpen 0:c8e52f514e03 36 }