19 search results - page 2 / 4 » RF gain control in direct conversion receivers |
ATAL
2007
Springer
13 years 11 months ago
2007
Springer
This chapter describes a principled, yet computationally efficient way for a team of UAVs with Received Signal Strength Indicator (RSSI) sensors to locate radio frequency emitting...
VTC
2008
IEEE
13 years 11 months ago
2008
IEEE
Multi-input multi-output (MIMO) systems are often realized with low cost front-end architectures, e.g. the so called direct conversion architectures. However, such systems are ver...
MOBICOM
2010
ACM
13 years 5 months ago
2010
ACM
We report a first-of-its-kind realization of directional transmission for smartphone-like mobile devices using multiple passive directional antennas, supported by only one RF chai...
ICICS
2001
Springer
13 years 9 months ago
2001
Springer
Secure group communication with hierarchical access control refers to a scenario where a group of members is divided into a number of subgroups located at different privilege leve...
CE
2004
13 years 5 months ago
2004
: Much recent educational research focuses on teaching and learning within classroom conversations. This raises the question of the role of ICT as a support for such conversations....