Error Self-Calibration Algorithm for Acoustic Vector Sensor Array

Table 2

Error self-calibration result of vector sensor array.

	Vector	Actual amplitude error	Calibration amplitude error	Relative error (%)	Actual phase error (rad)	Calibration phase error (rad)	Relative error (%)
1	Pressure	1	1	0.00	0	0	0.00
	Velocity	0.6603	0.6514	1.35	-1.3566	-1.3586	0.15
	Velocity	1.4775	1.487	0.64	0.7286	0.7283	0.04
2	Pressure	0.9364	0.9324	0.24	0.6072	0.6315	4.00
	Velocity	1.3247	1.3076	1.29	-0.8283	-0.8023	3.14
	Velocity	1.2993	1.3060	0.52	2.8876	2.9122	0.85
3	Pressure	0.9073	0.9031	0.07	0.9191	0.9728	5.84
	Velocity	0.0096	0.0095	1.04	0.4058	0.4379	7.91
	Velocity	1.1815	1.1892	0.65	1.9162	1.9696	2.79
4	Pressure	1.352	1.3486	0.25	-2.4557	-2.3770	3.20
	Velocity	0.6237	0.6157	1.28	-0.0911	-0.0812	10.87
	Velocity	0.9915	0.9966	0.51	-0.0247	-0.0223	9.72
5	Pressure	0.7792	0.7786	0.0800	0.1999	0.2072	3.65
	Velocity	1.8507	1.8257	1.35	-1.0383	-0.9320	10.24
	Velocity	0.9847	0.9912	0.66	0.5294	0.5365	1.34
6	Pressure	1.102	1.0992	0.25	-2.2171	-2.0839	6.01
	Velocity	0.4761	0.47	1.28	0.1074	0.1011	5.87
	Velocity	0.6323	0.6355	0.51	0.4389	0.4722	7.59