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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 studies the effects of the prefilter bandwidth on the open loop symbol synchronizers. We consider three different prefilter bandwidth, namely, B1=∞ (infinite), B2=2.tx and B3=1.tx, where tx is the transmission rate. We consider also four open loop symbol synchronizers, namely, the tank (tank), the SAW (SAW), the monostable (mon), and the astable (ast). The objective is to study the prefilter...
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...
This work studies the effects of the prefilter bandwidth in the sequential symbol synchronizers based on clock sampling by positive transitions. The prefilter bandwidth B is switched between three values, namely B1=∞, B2=2. tx and B3=1. tx, where tx is the bit rate. The synchronizer has two variants, one discrete and other continuous. Each variant has two versions, one manual and other automatic....
This work presents a sequential symbol synchronizer, that is based on a comparation between variable pulse against a reference fixed pulse. This synchronizer has two types, namely the both data transitions and the positive data transitions. Each type has two versions: the manual and the automatic. Then, we apply a prefilter, with three bandwidths B, namely (B1=??, B2=2.tx, B3=1.tx) to see its effects...
This work study the symbol phase synchronizer of mixed loop. This synchronizer is composed by a previous tuning filter followed of a carrier Phase Lock Loop (CPLL). The tuning filter is an open loop but the CPLL is a closed loop. The tuning filter is equal for all the synchronizers, but the CPLL has four types namely the analog, the hybrid, the combinational and the sequential.The objective is to...
This work study the symbol phase synchronizer of closed loop. This synchronizer have all its components inside of the loop, for this reason is called closed loop.We will study this synchronizer considering four topologies namely the analog, the hybrid, the combinational and the sequential.The objective is to study the four synchronizers and to evaluate their output jitter UIRMS (Unit Interval Root...
This work study the PLL (Phase Lock Loop) applied to systems of carrier frequency and data symbols. In each system, we consider four PLL types, namely the analog, hybrid, combinational and sequential.In the synchronizers for carrier frequency, the four PLL (Pll-cf) synchronizes directly with the input carrier.In the synchronizers for data symbols, the four PLL (f+Pll-ds) synchronizes with the data...
This work study four symbol phase synchronizers namely the analog, hybrid, combinational and sequential.These four synchronizers will be tested with three different input sequences (deterministic and pseudo random). The sequences are the deterministic P1=21 (one and zero dasia1-0psila), the deterministic P2=22 (two ones and two zeros dasia11-00psila) and the pseudo random P7=27-1. The objective is...
This work presents a sequential symbol synchronizer, that was discovered by us, and its functioning principle is based on the clock sampling by the input positive data transitions. This synchronizer has two topologies, namely the discrete and the continuous. Also, each topology has two versions which are the manual and the automatic. These synchronizers are very interesting, because the previous adjust...
The symbol synchronizer recoveries the clock and after, with it, samples and retimes the data. We present two synchronizer groups, the first based on filter with carrier phase lock loop (CPLL) and the second based on symbol phase lock loop (SPLL). Each group has four prototypes namely the analog, the hybrid, the combinational and the sequential. The objective is to study the various synchronizers...
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