Biblioteka Cyfrowa
Opis wydania
From modelling of a CDMA transceiver in indoor environment to an ASIC circuit synthesis, Journal of Telecommunications and Information Technology, 2001, nr 3
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Opis :
This paper presents the study, design and simulation of a multi-flow radio frequency transceiver based on a direct sequence spread-spectrum with a 2.4 GHz carrier. First, the functional model of differential QPSK modulation for digital transmission, and the different parts making up spread spectrum function (spreader, despreader, tracking and synchronising devices) have been studied, implemented, simulated and validated in noisy multi-users and multi-path environment by using a unified language. The results obtained by taking into account the home automation running constraints have allowed to determine some critical parameter values and so to integrate the digital functions in an ASIC circuit.
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