Heave Motion Measurement by Adaptive Filter Based on Longuet-Higgins Wave Model

Table 2

Rough sea test.

Simulation number	Cutoff frequency	Maximum value of absolute error (m)	Average value of errors (m)	Standard deviation of errors (m)	Error ratio (%)
1		0.2945	0.0182	0.0971	11.74
		0.1181		0.0422	4.712
2		0.2969		0.0975	11.85
		0.1257		0.0422	5.015
3		0.2865		0.0974	11.43
		0.1193		0.0422	4.760
4		0.2948	0.0185	0.0974	11.76
		0.1236		0.0422	4.931