Fast high-signal-to-noise ratio equivalent time processor
US5764551A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1996 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Oct 15, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention generally relates to ultra high bandwidth, ultra high ample rate systems and more particularly to equivalent time sampling and signal reconstruction. The disclosed technique provides a means to obtain high SNR (signal to noise ratio), uniformly spaced, ET (equivalent time) measurements from data where each point may have differing SNR and/or where the data is not uniformly spaced. The invention disclosed provides least-square optimum SNR output data from a plurality of arbitrarily time-skewed input data. The invention further discloses an implementation of the technique that requires no matrix inversion, but instead puts nearly all operations in a vector multiply or vector add form. The disclosed technique vectorizes the required equations allowing the invention to be implemented in low cost real-time hardware--that is, DSP (digital signal processing) integrated circuits, common micro-processors, or special purpose chip sets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.