Measurements of Periodic Signals Phase Shifts with Application of Direct Digital Synthesis by I. V. Gula, O. I. Polikarovskykh, K. I. Horiashchenko, I. V. Karpova, V. M. Melnychuk

“…This allowed the implementation of an 8-bit converter phase shift signal to the code on the programmed logic integrated circuit EPM240T100C5N firm Altera.The digital phase shift meter of periodic signals based on the double-matching method consists of two comparators, two short-wave pulse generators, a direct digital frequency synthesizer, two pulse counter control circuits, two short pulse coincidence circuits, two pulse counting circuits, four clock counters, four registers, a microcontroller and an indicator. …”
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