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Sequential Symbol Synchronizers Based on Pulse Comparation at Half Rate
2010
2010 Fifth International Conference on Digital Telecommunications
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This work presents a synchronizer based on pulse comparation, between variable and fixed pulses. ...
We consider four synchronizers, divided in two variants, one variant operate at the rate and the other at half rate. Each synchronizer variant has two versions which are the manual and the automatic. ...
INTRODUCTION This work studies the sequential symbol synchronizer, with a phase comparator based on a pulse comparation, between a variable pulse Pv and a fixed reference pulse Pf. ...
doi:10.1109/icdt.2010.38
fatcat:6vjpdfnrcvgshpm22dblorcnke
Prefilter Bandwidth Effects in Sequential Symbol Synchronizers based on Pulse Comparation at Quarter Rate
unpublished
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This work studies the effects of the prefilter bandwidth before the sequential symbol synchronizers based on pulse comparation at quarter rate. ...
We consider four synchronizers, one variant operates at the rate with versions manual (b-m) and automatic (b-a) and the other operates at quarter rate with versions manual (b-m/4) and automatic (b-a/4) ...
Fig. 1 shows the prefilter followed of the synchronizer. Fig. 1 Prefilter with the synchronizer based on pulse comparation PF(s) is the prefilter. ...
fatcat:h6s7qe5qffbslkvpquhxxaqily
Prefilter Bandwidth Effects in Sequential Symbol Synchronizers based on Pulse Comparation by Positive Transitions at Half Rate
unpublished
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This work studies the effects of the prefilter bandwidth in the sequential symbol synchronizers based on pulse comparation at bit rate and at half bit rate. ...
The synchronizer has two variants one operating by both transitions at bit rate and other operating by positive transitions at half rate. ...
INTRODUCTION This work studies the prefilter bandwidth effects on the jitter-SNR behavior of four sequential symbol synchronizers. ...
fatcat:bmis2dehq5bn3axi7uw63doyg4
Effects of the previous pulse shift and filter on the symbol synchronizer PLL
2008
2008 15th IEEE International Conference on Electronics, Circuits and Systems
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1 We will study the effects of the shift of the previous pulse temporal position (between P1 and P2) on the symbol synchronizers jitter behavior. ...
Each pulse temporal position (P1 and P2), with the same previous filter, forms a group with four different carrier PLL (Phase Lock Loop) namely the analog, hybrid, combinational and sequential. ...
CONCLUSIONS We studied two symbol synchronizers groups, one based in the pulse P1 and the other based in the pulse P2. ...
doi:10.1109/icecs.2008.4675028
dblp:conf/icecsys/ReisRGC08a
fatcat:irbt7z7tj5dv7mnsctrwyt6a2m
Asynchronous sequential symbol synchronizers based on pulse comparison by positive transitions at half bit rate
2014
2014 9th International Symposium on Communication Systems, Networks & Digital Sign (CSNDSP)
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This work presents the asynchronous sequential symbol synchronizers based on pulse comparison by positive transitions at half bit rate. ...
Their performance will be compared with the reference asynchronous symbol synchronizers based on pulse comparison by both transitions at bit rate. ...
INTRODUCTION This work studies the asynchronous sequential symbol synchronizer based on pulse comparison operating by positive transitions at half bit rate (ap/2). ...
doi:10.1109/csndsp.2014.6923925
dblp:conf/csndsp/ReisRGC14
fatcat:h55hjfzrazeuzin3vf7abyxiru
Synchronous and Asynchronous Sequential Symbol Synchronizers
2008
2008 Fourth Advanced International Conference on Telecommunications
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The synchronous group is based in forward logic with flip flops and the asynchronous group is based in forward logic with delay line feedback. ...
1 In this work, we present two synchronizer groups: the synchronous and the asynchronous. ...
Fig.4 shows the synchronous type manual version The manual version is based on the comparation between the phase comparator Pvs and manual reference pulse Pfm. ...
doi:10.1109/aict.2008.79
dblp:conf/aict/ReisRGC08
fatcat:ll6few5x6fh2xlctqvut3wvoxa
Prefilter bandwidth effects in asynchronous sequential symbol synchronizers based on pulse comparison by hybrid transitions at half bit rate
2015
2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS)
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This work studies the prefilter bandwidth effects in four asynchronous sequential symbol synchronizers. ...
The synchronizer has two variants one asynchronous by both transitions at bit rate and other asynchronous by both transitions at half bit rate. ...
After, we present the standard reference variant, asynchronous sequential symbol synchronizers based on pulse comparison by both transitions at bit rate, with versions manual (ab-m) and automatic (ab-a ...
doi:10.1109/icecs.2015.7440275
dblp:conf/icecsys/ReisCRG15
fatcat:7jwqfh7zprgffdimck4y6ylqiu
On The Implementation Of A Transmitted-Reference Uwb Receiver
2005
Zenodo
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In the next section we will, instead, propose an algorithm, suboptimal with respect to the one presented in [10] , which performs symbol synchronization based on heuristic considerations. ...
Symbol-level Synchronization Many implementations are possible ranging from parallel to sequential. ...
doi:10.5281/zenodo.39000
fatcat:pldkzupfcjanhhbarxxayzk62a
Implementation aspects of a transmitted-reference UWB receiver
2005
Wireless Communications and Mobile Computing
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A non-coherent transmittedreference (TR) receiver is chosen because of its small complexity compared to other architectures. ...
After a brief recapitulation of the UWB fundamentals and a short discussion on the major differences between coherent and non-coherent receivers, we discuss issues, challenges and possible design solutions ...
In the next section we will, instead, propose an algorithm, suboptimal with respect to the one presented in Reference [31] , which performs symbol synchronization based on heuristic considerations. ...
doi:10.1002/wcm.309
fatcat:ace5x56lnbcgjnrobknlntybx4
Design and Implementation of Time Signal Closed-loop Monitoring of Time Synchronization System in Intelligent Substation
2018
DEStech Transactions on Environment Energy and Earth Science
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This paper analyzes on-line monitoring technology of intelligent substation time synchronization system and judgment method of synchronous abnormality, abnormal problems in the timing section of the time ...
synchronization system, a method for closed-loop monitoring of time synchronization systems is proposed, by detecting the signal of the timing output interface. ...
Based on the principle of network link delay symmetry, the time difference is obtained. ...
doi:10.12783/dteees/epeee2018/26483
fatcat:taeykdacmzdk5gih5sodcfkc2e
STDFF A PASS TRANSISTOR BASED FLIP FLOP DESIGN FOR EFFICIENT INTEGRATED CIRCUITS
2014
International Journal of Electronics Signals and Systems
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In this paper a new technique is proposed based on the comparison between Conventional Transistorized Flip-flop and Data transition Look ahead D flip flop here we are checking the working of DLDFF and ...
In that our proposed system is showing better output than the other flip-flops compared here. ...
Counters can be classified as synchronous and asynchronous counters based on the application of clock to the flip-flops. ...
doi:10.47893/ijess.2014.1181
fatcat:eo37enupprckfg4chhzls3c2wi
Application of Asynchronous Channels Method to the W-CDMA Systems
2009
Open Cybernetics and Systemics Journal
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On the other hand, in practical bandlimited root raised cosine (RRC) pulse situation, ACL applied system performances are inferior to the conventional synchronous channel systems. ...
depending on the choice and the design of pulse shaping filters. ...
Pursley's analysis shows that asynchronous access CDMA systems can reduce multiple access interference (MAI) to 2/3 compared with synchronous ones. ...
doi:10.2174/1874110x00903020079
fatcat:nide5dx55nhk7mu3pt46zoypc4
Application of Asynchronous Channels Method to the W-CDMA Systems
2009
Open Cybernetics and Systemics Journal
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On the other hand, in practical bandlimited root raised cosine (RRC) pulse situation, ACL applied system performances are inferior to the conventional synchronous channel systems. ...
depending on the choice and the design of pulse shaping filters. ...
Pursley's analysis shows that asynchronous access CDMA systems can reduce multiple access interference (MAI) to 2/3 compared with synchronous ones. ...
doi:10.2174/1874110x00903010079
fatcat:4gcset5j2vhxnbv4my5gbi6yee
Real-time and High-speed Underwater Photon-Counting Communication Based on SPAD and PPM Symbol Synchronization
2021
IEEE Photonics Journal
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A reliable symbol synchronization method based on pulse-position modulation (PPM) was developed. ...
This method achieved slot synchronization by using a narrow-pulse-width laser and a simple matched filter and realizes frame synchronization through an improved synchronization sequence. ...
PPM-BASED SYMBOL SYNCHRONIZATION
A. ...
doi:10.1109/jphot.2021.3113659
fatcat:p5btbulf5zfthe7cxsqn336z2y
Anti-hangup binary quantized DPLL technique for timing recovery in QAM symbol-rate sampled receivers
2001
IEEE Transactions on Communications
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This paper presents the statistical performance analysis of a decision directed timing recovery scheme based on a digital phase-locked loop (DPLL) that uses binary quantization and employs an adaptive ...
Compared to the classical nonadaptive binary quantized DPLL synchronizer, the loop with the proposed adaptation mechanism gains up to an order of magnitude in response time over the hang-up effect, at ...
Luise, serving as Editor for Synchronization, for providing concise comments of extensive intellectual property that have constructively helped to improve the presentation. ...
doi:10.1109/26.905900
fatcat:vhq2bzwoh5ep3fhetwsei4nlje
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