求大佬指教

浮生若梦梦一场

void AD_LVBO()
{
  uint8 i, j;
  #define FILTER_N 5
  float filter_temp, filter_sum_L = 0,filter_sum_LC = 0,filter_sum_M = 0,filter_sum_R = 0,filter_sum_RC = 0;
  float filter_buf_L[FILTER_N];
  float filter_buf_LC[FILTER_N];
  float filter_buf_M[FILTER_N];
  float filter_buf_R[FILTER_N];
  float filter_buf_RC[FILTER_N];
  for(i = 0; i < FILTER_N; i++)
  {
    filter_buf_L[i]  = adc_once(ADC0_SE15, ADC_12bit);   
    filter_buf_LC[i] = adc_once(ADC0_SE7, ADC_12bit);
    filter_buf_M[i]  = adc_once(ADC0_SE12, ADC_12bit);
    filter_buf_R[i]  = adc_once(ADC0_SE14, ADC_12bit);
    filter_buf_RC[i] = adc_once(ADC0_SE13, ADC_12bit);
   }

请问一下 filter_sum_L ,filter_sum_LC ,filter_sum_M ,filter_sum_R ,filter_sum_RC ;是什么意思看不懂。求大佬们指教。

浮生若梦梦一场

LAD=filter_sum_L/(FILTER_N - 2);   LADC=filter_sum_LC/(FILTER_N - 2);   MAD=filter_sum_M/(FILTER_N - 2);   RAD=filter_sum_R/(FILTER_N - 2);   RADC=filter_sum_RC/(FILTER_N - 2)

浮生若梦梦一场

请问上面的LAD,LADC,MAD,RAD,RADC,是什么意思