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 Rectangular and Bandlimited Waveforms Code and Frequency Synchronization for DS-CDMA Systems.
Наименование:

Rectangular and Bandlimited Waveforms Code and Frequency Synchronization for DS-CDMA Systems.

автор Khaled A. издательство Книга по Требованию Прочие виды транспорта
Cтраниц 148        мягкая обложка       
Аннотация:The proposed method can be implemented both blindly and in a training-assisted fashion. The proposed estimator relies on converting the received signal to the frequency domain, then, the code-timing estimates are obtained by exploiting the unique structure of the spectra of the spreading waveform. The goal is to provide an algebraic solution to the joint estimation problem, in a near-far time-varying frequency-selective fading channel. Joint estimation of code timing and carrier frequency offset for (DS) direct sequence CDMA systems is investigated. First, the multiuser estimation is decoupled into a series of single-user estimation problems; then, analytical tools of polynomial matrices are invoked for joint carrier and code timing estimation of the desired user. The performance of the proposed study is examined analytically, where expressions for the variance of propagation delay and frequency offset estimation errors are derived. A subspace code-timing estimator for CDMA systems that utilize bandlimited chip waveforms is also presented.
Автор: Khaled A.
Издательство: Книга по Требованию
Год:2008
Цена:
2415 руб
Нет в наличии
Поиск: Rectangular and Bandlimited Waveforms Code and Frequency Synchronization for DS-CDMA Systems.
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