Improved Measurement Accuracy Based on Moving Sine-Wave Fitting for Ultrasonic Ranging

Table 1

Average fixed distance and the two average feature points.

Average distance (mm)	Average M	Average MR	Average FO	Average distance (mm)	Average M	Average MR	Average FO
50.021	308	333	25	115.033	489	514	25
55.012	319	344	25	120.074	501	527	26
60.083	333	358	25	125.069	515	542	27
65.034	346	372	26	130.025	527	563	36
70.054	357	384	27	135.048	535	572	37
75.061	375	401	26	140.048	549	587	38
80.053	388	414	26	145.040	560	599	39
85.038	406	431	25	150.018	575	615	40
90.029	419	443	24	155.096	592	631	39
95.018	436	459	23	160.058	606	644	38
100.057	448	471	23	165.086	626	661	35
105.086	463	486	23	170.032	645	673	28
110.047	476	500	24
Temperature: 25.7°C