Title :
An automatic tracking system for phase-noise measurement
Author :
Yuen, Chung Ming ; Tsang, Kim Fung
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, China
fDate :
5/1/2005 12:00:00 AM
Abstract :
A low cost, automatic tracking system for phase noise measurement has been implemented successfully. The tracking system is accomplished by applying a charge pump phase-locked loop as an external reference source to a digital spectrum analyzer. Measurement of a 2.5 GHz, free-running, voltage-controlled oscillator demonstrated the tracking accuracy, thus verifying the feasibility of the system.
Keywords :
electric noise measurement; phase locked loops; phase noise; tracking; voltage-controlled oscillators; 2.5 GHz; automatic tracking system; charge pump phase-locked loop; digital spectrum analyzer; free-running oscillator; phase-noise; tracking accuracy; voltage-controlled oscillator; Charge pumps; Counting circuits; Frequency; Measurement errors; Phase locked loops; Phase measurement; Phase noise; Spectral analysis; Voltage; Voltage-controlled oscillators;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2005.1503969
