4078 search results - page 522 / 816 » The COMPASS Location System |
231
click to vote
CSDA
2011
15 years 1 months ago
2011
The outer layers of the Earth’s atmosphere are known as the ionosphere, a plasma of free electrons and positively charged atomic ions. The electron density of the ionosphere var...
192
click to vote
JCS
2011
15 years 1 months ago
2011
RFID systems often use near-field magnetic coupling to implement communication channels. The advertised operational range of these channels is less than 10 cm and therefore sever...
161
click to vote
JISE
2010
15 years 1 months ago
2010
: - To measure water levels from remote cites using a narrowband channel, this paper developed a difference image based JPEG communication scheme and a water level measurement sche...
164
click to vote
TIT
2010
15 years 1 months ago
2010
Wideband analog signals push contemporary analog-to-digital conversion systems to their performance limits. In many applications, however, sampling at the Nyquist rate is inefficie...
155
click to vote
TOG
2010
15 years 1 months ago
2010
Destination maps are navigational aids designed to show anyone within a region how to reach a location (the destination). Handdesigned destination maps include only the most impor...