Table 1.

Quality values Q for the different models (large value indicates a better discriminability of responses to different velocities). It can be seen that for the basic model the additional noise and the local intensity changes in the real sine pattern have a strong effect on the output. The (s)cc models show smaller changes in the quality of the response. The quality for the real sine pattern is much better in the (s)cc models.

	basic model	correlator models
	h-l-EMD	h-l-cc-EMD	h-l-scc-EMD
perfect sine	5.4 × 1025	849.7	3 × 1004
realistic sine	0.715	12.88	494.8