Fig 1 - uploaded by Antonio Alves Ferreira Júnior
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Clock block diagram showing he OCXO standard oscillator, the frequency synthesizer made of voltage controlled oscillator (VCO) phase locked loop (PLL), followed by the phase shifters, counters and registers.
Source publication
This paper presents the implementation of a radio link that operates with a time counting system. This new system makes possible the precision time transference for remote time synchronization and precision distance measurement. The system uses digital electronic solutions that offer precision and stability for various applications in navigation, t...
Context in source publication
Context 1
... second parameter is the phase stability of the communication link that influence the time measurement. Figure 1 illustrates the main blocks of the clock system that was implemented with a STRATIX II FPGA (Field Programmable Gate Array) tool from ALTERA [9]. An OCXO (oven controlled crystal oscillator) frequency signal is fed into an enhanced PLL (phase lock loop) that raises the frequency to be compared to a VCO (voltage controlled oscillator). ...
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