不韋 呂 / Mbed 2 deprecated SDR_AM_Rx_CIC

AM中波放送用SDR．CICフィルタのみを使用．CQ出版社「トランジスタ技術」誌，2021年4月号に掲載

Dependencies:   mbed

Diff: SDR_Library/Iir1st.hpp

Revision:
1:30d9fb51dec1
Parent:
0:6906f8616429
Child:
2:4bec6b2be809
--- a/SDR_Library/Iir1st.hpp	Mon Sep 16 14:20:17 2019 +0000
+++ b/SDR_Library/Iir1st.hpp	Mon Sep 23 07:32:10 2019 +0000
@@ -1,7 +1,8 @@
 //-----------------------------------------------------------------
 // 一次の IIR フィルタ
+//      y[n] = a1*y[n-1] + (1 - a1)*x[n]
 //
-// 2019/09/03, Copyright (c) 2019 MIKAMI, Naoki
+// 2019/09/21, Copyright (c) 2019 MIKAMI, Naoki
 //-----------------------------------------------------------------
 
 #include "mbed.h"
@@ -36,4 +37,3 @@
     };
 }
 #endif  // IIR_1ST_HPP
-