1     /* 加权平均滤波 */ 2     static unsigned char coe[13] = {1,2,3,4,5,6,7,8,9,10,11,12,13}; 3     static unsigned int coeSum= 1+2+3+4+5+6+7+8+9+10+11+12+13; 4     unsigned long temp = 0; 5  6     for (i = 0; i<ADCN; i++) 7     { 8         temp += arr[i]*coe[i]; 9     }10     temp = (unsigned long )( temp * 1.0 / coeSum);

 1 /* 中值滤波 */ 2     unsigned long temp = 0; 3  4     // 选择排序 5     for (i = 0; i<ADCN-1; i++) 6     { 7         k = i; 8         for (j = i+1; j<ADCN; j++) 9         {10             if (arr[j] < arr[k])11                 k = j;12         }13         if (k != i)14         {15             temp = arr[k];16             arr[k] = arr[i];17             arr[i] = temp;18         }19     }20     temp = arr[ (ADCN - 1) / 2];        //返回中值