Measuring Time Base Distortion in Analog-Memory Sampling Digitizers
| Autor: | A. Di Nisio, Nicola Giaquinto, Filippo Attivissimo, Mario Savino |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Systematic error
Relation (database) Computer science Analog-digital conversion Data acquisition Maximum likelihood estimation Parameter estimation Sampling methods Time base distortion time measurement Analog-to-digital conversion Distortion Electronic engineering Detection theory timing circuits Electrical and Electronic Engineering Analog memory Oscilloscope Instrumentation Measure (data warehouse) Estimation theory Sampling (statistics) Base (topology) Analog-to-digital conversion data acquisition maximum-likelihood (ML) estimation sampling methods time base distortion (TBD) time measurement timing circuits timing jitter time base distortion (TBD) maximum-likelihood (ML) estimation timing jitter |
| Zdroj: | 2006 IEEE Instrumentation and Measurement Technology Conference Proceedings. |
| ISSN: | 1091-5281 |
| DOI: | 10.1109/imtc.2006.236377 |
| Popis: | High-frequency digital oscilloscopes are often prone to systematic errors in sampling time or time base distortion (TBD). This error greatly affects the quality of the acquisition of fast signals, but its systematic nature makes measurement and correction possible and greatly advantageous. Existing techniques for measuring TBD exhibit good performance with equivalent-time sampling digitizers, but they are not able to measure the distortion in real-time analog-memory systems - a technology of widespread use in modern gigasamples/second sampling scopes. This paper illustrates the correct measurement technique that was developed according to the hardware peculiarities of analog-memory sampling digitizers. The performance of the developed techniques are theoretically evaluated and practically demonstrated in the experimental characterization of an actual real-time analog-memory scope. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|