Increases of speed in systems of multistation access are with the code division of channels of СDMA on the base of height telecommunication platforms
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2007, Vol 0, Issue 34
Abstract
The features of construction of systems of mobile radio communication on the basis of high-altitude platforms are given, the opportunities of increase of information speed are considered consecrate, it is shown perspective of such systems for introduction of systems of communication 3G/4G.
Authors and Affiliations
Yu. Reutskaya, A. Kalyuzhny
Reliability of а radioelectronic equipment cells design at external mechanical influences
The influence of pressure in conclusions of microcircuits, microassembly, and in them solder connections, as result of action of external mechanical loadings – vibrations and impacts – on parameters of reliability of a c...
About quantum mechanical and classical interpretation of the photon’s wave properties
The results of application of Schrödinger equation and Heisenberg‘s uncertainty relation for the photons wave properties description as material particles are presented. Ψ-function of photon as a solution of Schrödinger...
Modeling of microstrip analogue of a photon crystal
The comparative modeling of microstrip analogue of a photon crystal by an impedance method, diner’s method and method of final integrals is considered. The characteristics which show mutual conformity of results are give...
The way of managing traveling wave tube
It was analyzed the problems that arise while managing a modulator of traveling wave tube. The modulator is under high voltage potential on the cathode of TWT and ensures the formation of pulses with the necessary parame...
System Choice of Optimal Technological 3D MID Solution
Modern General statement of a problem. Modern Three-Dimensional Molded Interconnect Devices (3D-MID) technology of injection-molded thermoplastic circuit carriers with structured circuit traces has proved to be an effect...