diff --git a/App/Src/anemometer_dev.c b/App/Src/anemometer_dev.c
index c2c1791..478880d 100644
--- a/App/Src/anemometer_dev.c
+++ b/App/Src/anemometer_dev.c
@@ -132,7 +132,7 @@ float32_t cal_tof(q15_t* x,uint32_t len)
 //    arm_float_to_q15(buf2,firFilterTestOutData,len);
     for(i= 0 ;i<len;i++ )
     {
-        x[i] = (int16_t)(buf2[i]*2.5f);
+        x[i] = (int16_t)(buf2[i]);
     }
     /*****************滤波器**********/