[time-nuts] Time interval interpolation by sampling a pair of sinewaves in quadrature.

2006-09-26 Thread Dr Bruce Griffiths
Yet another high resolution time interval interpolation technique is to sample a pair of quadrature sinewaves at the leading edge of the pulse to be time stamped. When sampling a pair of 10MHz sinewaves in quadrature with a 12 bit ADC a timing resolution of better than 50 picosec is possible.

Re: [time-nuts] Time interval interpolation by sampling a pair of sinewaves in quadrature.

2006-09-26 Thread Tim Shoppa
Dr Bruce Griffiths [EMAIL PROTECTED] wrote: Yet another high resolution time interval interpolation technique is to sample a pair of quadrature sinewaves at the leading edge of the pulse to be time stamped. These are all variants of what I (because of my high-energy physics background!) call