Digital burst frequency translator
US5453834A · kind A · utility
Inventor
Key dates
| Filing date | Apr 11, 1994 |
| Grant date | Sep 26, 1995 |
| Priority date | — |
| Expiry date | Apr 11, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/58
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for detecting and measuring analog coherent frequency bursts includes circuitry for digitally translating the bursts upon their detection. Based on a frequency range estimate, a sampling frequency is selected to govern conversion of the analog burst to a sequence of digital values, which are stored to a sequential memory. The digital values later are read out of the memory to a digital-to-analog converter at a predetermined read frequency. The D/A converter output is low-pass filtered to provide a reconstructed analog burst. Sampling rates are selected to limit the frequency range of reconstructed bursts to a single octave, which enables subsequent signal processing with simpler circuitry, for reduced cost and improved accuracy and reliability of measurements obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.