Application of Time Recursive Processing for the Development of a Time/Phase Shifter

• Main Authors: D. M. Perisic, M. Bojovic
• Format: Article
• Language: English
• Published: D. G. Pylarinos 2017-06-01
• Series: Engineering, Technology & Applied Science Research
• Subjects: time shifter; phase shifter; digital circuit; PLL
• Online Access: http://etasr.com/index.php/ETASR/article/download/1179/497

This paper describes a powerful digital time and/or phase shifter of pulse rates, based on Time Recursive Processing. It can function either as a time shifter or as a phase shifter. The circuit can generate precise shifting for a pulse rate with a constant input period, but it is also capable to shift a pulse rate whose period is a ramp function. Besides that, the shifter can be used in tracking and prediction applications. The shifter is described by recursive equations as a linear discrete system. All mathematical analyses are made using the Z transform. Computer simulations are employed to prove the correctness of the mathematical analysis. The realization of the shifter is described and, to demonstrate the shifter functioning, actual oscilloscope screenshots are presented.