نتایج جستجو برای: extended viterbi algorithm

تعداد نتایج: 947788  

2012
Yinan Dong Yingfeng Yang

This paper describes the design and optimization of Viterbi Decoder used for (2,1,3) convolution code. It first introduces the basic principle of Viterbi Algorithm, then describes the basic circuit architecture of the Viterbi Decoder. Then it compares several different architecture and circuit optimization method, which emphasize on aspects such as throughput, power and memory consumption. Fina...

2013
Tofigh Naghibi Sarah Hoffmann Beat Pfister

Given K utterances of a word and a set of sub-word units one may need a generalization of the conventional one-dimensional Viterbi algorithm to jointly decode them in order to derive their underlying word model (pronunciation). This extension is called k-dimensional Viterbi. However, as the number of utterances increases, the complexity of the k-dimensional Viterbi algorithm exponentially incre...

2012
B. Jyothi P. Sridhar Reddy

Viterbi Decoders are commonly used to decode convolutional codes in communications systems. This Viterbi Decoder is a fully parallel implementation which gives fast data throughput. The decoder is targeted for WiMAX and Wireless LAN applications. Input symbol metric pairs are decoded into output data bits by the maximum likelihood Viterbi processor core. Decoder supports both hard and soft inpu...

1972
G. FORNEY

Theory of electrodynamics in media in noninertial frames and applications, " J. Abstrucf-The Viterbi algorithm (VA) is a recursive optimal solution to the problem of estimating the state sequence of a discrete-time finite-state Markov process observed in memoryless noise. Many problems in areas such as digital communications can be cast in this form. This paper gives a tutorial exposition of th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی عمران 1386

به کارگیری روشهای بهینه سازی در تحلیل سیستم های عمران، همانند شبکه های توزیع آب و جمع آوری فاضلاب، منابع آب، سازه و... در چند دهه اخیر مورد توجه متخصصین این رشته واقع شده است. با توجه به هزینه بری فراوان طرحهای آب و فاضلاب (شبکه های توزیع آب و جمع آوری فاضلاب) لزوم به کارگیری روشهای نو و به صرفه برای طراحی و اجرای سیستم های مذکور احساس می شود. روشهای سنتی و مرسوم طراحی شبکه های توزیع آب و جمع آ...

2015
Li Huan Zhao Feng Li Yu Bai

IFF determines the response properties of the target to identify friend or foe through question and answer mechanism, and nowadays it plays an important role in the modern information warfare. This paper introduces the transponder digital processing system in the new type of IFF, specially including the processing method of receiving and transmitting in MOD5 and the theory of basic MSK modulati...

2006
SURESH BABU

Convolutional encoding with Viterbi decoding is a powerful method for forward error correction. It has been widely deployed in many wireless communication systems to improve the limited capacity of the communication channels. The Viterbi algorithm, which is the most extensively employed decoding algorithm for convolutional codes. In this paper, we present a field-programmable gate array impleme...

Journal: :EURASIP J. Adv. Sig. Proc. 2010
Yung-Yi Wang Jiunn-Tsair Chen

We proposed a novel Viterbi-based algorithm using jiggling substates for joint data sequence detection, symbol boundary selfcalibration, and signal frame synchronization for the EPC-Global Gen-2 system. The proposed algorithm first represents the dataencoded scheme as a trellis diagram, and then, as a consequence; the data sequence estimation can be carried out through the Viterbi algorithm. Mo...

2007
Nigel C. McGinty Rodney A. Kennedy

| The Viterbi algorithm (VA) can be reformulated such that the calculations can be performed over a set of independent parallel trellises for a class of sparse channels. This new algorithm named the parallel trellis Viterbi algorithm (PTVA) reduces the complexity of the Viterbi algorithm, however, it has no loss in performance for the special class of intersymbol interference (ISI) channels. Pr...

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