Virginia Tech has performed a comprehensive propagation experiment using the Olympus satellite beacons at 12.5, 19.77, and 29.66 GHz (which we refer to as 12, 20, and 30 GHz). Four receive terminals were designed and constructed, one terminal at each frequency plus a portable one with 20 and 30 GHz receivers for microscale and scintillation studies. Total power radiometers were included in each terminal in order to set the clear air reference level for each beacon and also to predict path attenuation. More details on the equipment and the experiment design are found elsewhere. Statistical results for one year of data collection were analyzed. In addition, the following studies were performed: a microdiversity experiment in which two closely...
This paper describes the current experimental program and future plans for the reception of transmis...
NASA Glenn Research Center (GRC) and the Politecnico di Milano (POLIMI) have initiated a joint propa...
Studies at 11 locations in the continental United States were directed at an evaluation of rain atte...
Virginia Polytechnic Institute has been carrying out a comprehensive set of propagation measurements...
Virginia Tech is performing a comprehensive set of propagation measurements using the OLYMPUS satell...
Virginia Tech is performing a comprehensive set of propagation measurements using the Olympus satell...
Virginia Tech has developed two types of receivers to monitor the Olympus beacons, as well as a cust...
Tropospheric scintillations are rapid fluctuations of signal caused by multiple scattering from the ...
Measurements of attenuation of the 20 and 30 GHz beacons onboard the OLYMPUS satellite are compared ...
The OLYMPUS and ACTS satellites both provide opportunities for 10 to 30 GHz propagation measurements...
Future communication systems will move toward the 20 to 30 GHz frequency range for wider bandwidth a...
Rapidly growing demand for channel capacity and limitations in satellite power and frequency spectru...
The National Aeronautics and Space Administration Advanced Communications Technology Satellite (ACTS...
In modern information society, it is increasingly important to ensure ubiquitous access to broadband...
For satellite communications, propagation effects due to the atmosphere are a critical system factor...
This paper describes the current experimental program and future plans for the reception of transmis...
NASA Glenn Research Center (GRC) and the Politecnico di Milano (POLIMI) have initiated a joint propa...
Studies at 11 locations in the continental United States were directed at an evaluation of rain atte...
Virginia Polytechnic Institute has been carrying out a comprehensive set of propagation measurements...
Virginia Tech is performing a comprehensive set of propagation measurements using the OLYMPUS satell...
Virginia Tech is performing a comprehensive set of propagation measurements using the Olympus satell...
Virginia Tech has developed two types of receivers to monitor the Olympus beacons, as well as a cust...
Tropospheric scintillations are rapid fluctuations of signal caused by multiple scattering from the ...
Measurements of attenuation of the 20 and 30 GHz beacons onboard the OLYMPUS satellite are compared ...
The OLYMPUS and ACTS satellites both provide opportunities for 10 to 30 GHz propagation measurements...
Future communication systems will move toward the 20 to 30 GHz frequency range for wider bandwidth a...
Rapidly growing demand for channel capacity and limitations in satellite power and frequency spectru...
The National Aeronautics and Space Administration Advanced Communications Technology Satellite (ACTS...
In modern information society, it is increasingly important to ensure ubiquitous access to broadband...
For satellite communications, propagation effects due to the atmosphere are a critical system factor...
This paper describes the current experimental program and future plans for the reception of transmis...
NASA Glenn Research Center (GRC) and the Politecnico di Milano (POLIMI) have initiated a joint propa...
Studies at 11 locations in the continental United States were directed at an evaluation of rain atte...