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C语言_用于ADC数据的均值滤波算法

说明：
在采集ADC值的时候一般都是多次采集然后，然后取平均值，改进型做法就是去掉最大最小值剩下的再取平均值

unsigned short average(unsigned short arr[], unsigned char size)
{unsigned int sum = 0;for (unsigned int i = 0; i < size - 1; i++) {for (unsigned int j = 0; j < size - i - 1; j++) {if (arr[j] > arr[j + 1]) {int temp = arr[j];arr[j] = arr[j + 1];arr[j + 1] = temp;}}}for(unsigned int i = 1; i < size - 1; i++){sum += arr[i];//SENSOR_printf("%d ",arr[i]);}//SENSOR_printf("\r\n");//SENSOR_debug("sum:%d,count:%d,average:%d\r\n",sum,size-2,sum /(size-2));return sum /(size-2);
}

应用实例：

#include <stdlib.h>unsigned short average(unsigned short arr[], unsigned char size)
{unsigned int sum = 0;for (unsigned int i = 0; i < size - 1; i++) {for (unsigned int j = 0; j < size - i - 1; j++) {if (arr[j] > arr[j + 1]) {int temp = arr[j];arr[j] = arr[j + 1];arr[j + 1] = temp;}}}for(unsigned int i = 1; i < size - 1; i++){sum += arr[i];printf("%d ",arr[i]);}printf("sum:%d,count:%d,average:%d\r\n",sum,size-2,sum /(size-2));return sum /(size-2);
}int main()
{unsigned short data[10] = {0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09};printf("Hello, World\r\n");printf("average:%d",average(data, 10));return(0);
}

输出：