Title :
Frequency switching time measurement using digital demodulation
Author :
Anderson, Bruce G.
Author_Institution :
Hewlett-Packard Corp., Palo Alto, CA, USA
fDate :
4/1/1990 12:00:00 AM
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;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
