Diff: MA/Moving_Average.cpp

Revision:

5:2503c88a564f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MA/Moving_Average.cpp	Tue Jan 11 02:19:55 2022 +0000
@@ -0,0 +1,40 @@
+#include "mbed.h"
+#include "Moving_Average.h"
+
+
+
+// Source是不断变化的
+float Moving_Average(unsigned int NN, float *FILTER, float Source)
+{
+    
+    float AVER = 0.0f; 
+    float SUM = 0; 
+    unsigned char i;
+    
+    
+    FILTER[NN] = Source;    // 将接受到的数据放在均值滤波数组的“最后（倒数第2个）”元素里面
+
+    
+    // 把第一次进入的 Source 赋值给 FILTER[0] ~ FILTER[N-1]
+    if(FILTER[NN+1] == 0)   // FILTER[N+1]等于0，表示第一次进入该函数
+    {
+        for(i = 0; i < NN; i++)
+        {
+            FILTER[i] = Source;
+        }
+
+        FILTER[NN+1] = 1;   // 设置标记，已经进入过该函数，以后不再全部赋值   
+    }
+    
+
+    for(i = 0; i < NN; i++)
+    {
+        FILTER[i] = FILTER[i + 1];
+        SUM += FILTER[i];
+    }
+    
+    AVER = SUM / NN;
+    SUM = 0;
+
+    return AVER;
+}
\ No newline at end of file