A novel equivalent sampling method using in the digital storage oscilloscopes

Abstract

The random equivalent sampling and sequential equivalent sampling are two equivalent sampling methods widely used in the Digital Storage Oscilloscopes. A novel equivalent sampling method which is called compound equivalent sampling is proposed in this paper. The method combines the high-speed of the random equivalent sampling with the high efficiency of the sequential equivalent sampling and can perform rapid and effective measurement for the periodic signal which is either fast-varying or slow-varying. The circuit using this method is also able to take real-time sampling to the single-shot signals.<>