. 2014 Jun 25;2014:671494. doi: 10.1155/2014/671494
Copyright © 2014 Md. R. Islam and J.-M. Kim.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
Segments of a GPS system [22].