Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2011 Mar 18;11(3):3303–3326. doi: 10.3390/s110303303

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2011 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

PMC Copyright notice

Figure 6. — Responses of an h-l-EMD array (a, b) and an h-l-scc-EMD array (c, d) to a sine pattern with local noise and changes in local intensity. (a) and (c) show the responses versus pattern phase for eleven different velocities after the initial response transient has faded away. (b) and (d) represent the velocity dependence of the mean response amplitude (logarithmic velocity axis). The dashed line represents the approximated velocity curve. Markers indicate the calculated mean values. Additionally the standard deviation (coloured) and the minimum to maximum range of values (grey) are shown. (a, b) h-l-EMD array: The noise leads to a strong response modulation in comparison to the response to the perfect sine pattern. The different velocities cannot be distinguished as easily as is possible for the noise-free pattern. (c, d) h-l-scc-EMD array: The fluctuations in the response are reduced, especially the low-frequency ones, compared to those of the h-l-EMD.