DocumentCode :
1310957
Title :
A practical method to process time and frequency signal
Author :
Zhou, Wei ; Li, Zhiyong ; Zhou, Hui
Author_Institution :
Dept. of Meas. & Instrum., Xidian Univ., Xi´´an, China
Volume :
47
Issue :
2
fYear :
2000
fDate :
3/1/2000 12:00:00 AM
Firstpage :
480
Lastpage :
483
Abstract :
A new practical time and frequency signal processing method can be used to generate an accurate time signal, for stable phase step, for frequency change and synthesis, and for other related uses. The method accomplishes the time and frequency signal processing by changing the period and phase of the machine cycle of a microcomputer. It is based on pulse deletion of a high frequency clock signal, quantified phase delay, and other intentional variations in a microcomputer clock signal circuit. The pulse deletion and phase delay can be implemented periodically or individually for different purposes, and a frequency change and synthesis or phase shift of the microcomputer output signal can be obtained. With this method, the time signal processing precision can be from several tens of nanoseconds to less than 1 ns.
Keywords :
signal processing; frequency change; frequency signal processing; frequency synthesis; microcomputer clock signal circuit; phase delay; phase stepping; pulse deletion; time signal generation; time signal processing; Circuits; Clocks; Delay effects; Frequency conversion; Frequency synthesizers; Microcomputers; Signal generators; Signal processing; Signal resolution; Signal synthesis;
fLanguage :
English
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-3010
Type :
jour
DOI :
10.1109/58.827440
Filename :
827440
Link To Document :
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