منابع مشابه
Air to ground quantum key distribution
To enable global scale quantum key distribution (QKD), satellite based systems are the most promising approach. So far, free-space QKD has already been demonstrated on communication channels with attenuation comparable to satellite downlinks, and classical laser communications with satellites and aircrafts is heavily explored. Here, combining both these challenges, we demonstrate an aircraft to...
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On-board avionics systems are proprietary and no standardisation is expected in the foreseeable future. The various microprocessors employed dramatically vary in their performance. Thus, in the case where additional information needs to be delivered to the pilot by uploading it fiom the ground station, there is an obvious need for a platform-independent solution. A Concept of Dynamic Safety (Co...
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In this paper the capacity of the Air-to-Ground and Ground to Air system is studied. The Outside Cell Interference Factor is estimated through simulations for uplink and downlink. The calculation algorithm is explained as well as the scanning mode of interfering cells around the desired cell. Results for the number of active users for various values of the maximum height of the cell and its rad...
متن کاملPerformance Analysis of DSTBC over VHF Air-to-Ground Communication Channels
This paper is concerned with evaluating the performance of differential space time block coding (DSTBC) over very high frequency (VHF) aeronautical communication channels (i.e. air-to-ground). Differential phase shift key (DPSK) is one of the differential transmission schemes that transmit information without full channel state information (CSI) at the receiver. There are two main problems that...
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In this paper we consider the problem of air to ground missile guidance system using fuzzy controller. The missile model is assumed as three degree of freedom (3DOF) (assuming the analysis in the vertical plane only).The homing guidance method is used. This paper presents numerical results for applying the fuzzy controller to the missile in different situations of control parameters in differen...
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ژورنال
عنوان ژورنال: Nature Photonics
سال: 2013
ISSN: 1749-4885,1749-4893
DOI: 10.1038/nphoton.2013.46