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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. For the reference and proposed variants, we consider two versions which are the manual (m) and the automatic (a). The...
This work studies the asynchronous sequential symbol synchronizers based on pulse comparison by both transitions at rate (atx). Their performance will be compared with the reference synchronous synchronizers based on pulse comparison by both transitions at rate (stx).
This work studies the effects of the prefilter bandwidth in four sequential symbol synchronizers. We consider three prefilter bandwidths namely B1=∞, B2=2.tx and B3=1.tx, where tx is the bit rate. The synchronizer has two variants one synchronous by both transitions at rate and other asynchronous by both transitions at rate. Each variant has two versions namely the manual and the automatic. The objective...
This work studies the effects of the prefilter bandwidth in the sequential symbol synchronizers based on pulse comparison at rate and positive quarter rate. We consider three prefilter bandwidths namely B1=∞, B2=2.tx and B3=1.tx, where tx is the bit rate. The synchronizer has two variants one operating by both transitions at bit rate and other operating by positive transitions at quarter rate. Each...
This work presents the sequential symbol synchronizer based on pulse comparison by positive transitions at quarter rate (txp/4). Their performance is compared with a reference synchronizer by both transitions at the rate (tx). For the reference and proposed synchronizer we consider two versions which are the manual (m) and the automatic (a). The objective is to study the four synchronizers and evaluate...
This work studies the effects of the prefilter bandwidth on the carrier wave phase synchronizers. We consider three different prefilter bandwidths namely B1= ∞(infinite), B2=2.tx and B3=1.tx, where tx is the transmission rate. We consider also four carrier wave phase synchronizers, namely, the analog (ana), the hybrid (hib), the combinational (cmb), and the sequential (seq). The objective is to study...
This work studies the effects of the prefilter bandwidth in the symbol synchronizers of mixed loop. The prefilter bandwidth B is switched between three values, first B1=∞ (infinite), after B2=2.tx and next B3=1.tx, where tx is the bit rate. The synchronizer of mixed loop is based on a tuned filter followed of a PLL (Phase Lock Loop). We consider four PLL types, namely, the analog (ana), hybrid (hib),...
This work studies the effects of the prefilter bandwidth on the symbol synchronizers of closed loop. The prefilter changes its bandwidth B, first B1=∞ (infinite), after B2=2.tx and next B3=1.tx, tx is the bit rate. The symbol synchronizer is based on a closed loop blocks. We consider four types, namely, the analog (ana), hybrid (hib), combinational (cmb) and sequential (seq). The objective is to study...
This work presents the synchronizer based on pulse comparation, between variable and fixed pulses. This synchronizer has two variants, one operating by both transitions at the bit rate and other operating by positive transitions at half rate. Each variant has two versions namely the manual and the automatic. The objective is to study the four synchronizers and evaluate their output jitter UIRMS (Unit...
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