Frequency switching time measurement using digital demodulation

Author

Anderson, Bruce G.

Author_Institution

Hewlett-Packard Corp., Palo Alto, CA, USA

Volume

39

Issue

2

fYear

1990

fDate

4/1/1990 12:00:00 AM

Firstpage

353

Lastpage

357

Abstract

A method for measuring frequency switching time in fast switching frequency synthesizers is described. The fast frequency switching waveform is digitized by an oscilloscope, and the switching transient is recovered by digital demodulation. The method can be used to measure the switching time for any fairly wide frequency steps within the acquisition bandwidth of the digitizing system, and it is insensitive to signal amplitude variations. Some results of measurements on a frequency agile signal simulator are presented

Keywords

analogue-digital conversion; demodulation; frequency measurement; frequency synthesizers; oscilloscopes; signal processing equipment; transients; waveform analysis; digital demodulation; digitizing system; fast switching frequency synthesizers; frequency agile signal simulator; frequency steps; frequency switching waveform; oscilloscope; switching time; switching transient; Communication switching; Demodulation; Frequency measurement; Frequency synthesizers; Oscilloscopes; Phase detection; Phase measurement; Switches; Switching frequency; Time measurement;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.52514

Filename

52514