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Frequency domain laser velocimeter signal processor: a new signal processing scheme
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Clemmons Jr., James I. Meyers, James F. |
| Copyright Year | 1987 |
| Description | A new scheme for processing signals from laser velocimeter systems is described. The technique utilizes the capabilities of advanced digital electronics to yield a smart instrument that is able to configure itself, based on the characteristics of the input signals, for optimum measurement accuracy. The signal processor is composed of a high-speed 2-bit transient recorder for signal capture and a combination of adaptive digital filters with energy and/or zero crossing detection signal processing. The system is designed to accept signals with frequencies up to 100 MHz with standard deviations up to 20 percent of the average signal frequency. Results from comparative simulation studies indicate measurement accuracies 2.5 times better than with a high-speed burst counter, from signals with as few as 150 photons per burst. |
| File Size | 2210552 |
| Page Count | 39 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870018561 |
| Archival Resource Key | ark:/13960/t1zd2t92k |
| Language | English |
| Publisher Date | 1987-09-01 |
| Access Restriction | Open |
| Subject Keyword | Lasers And Masers Domains Laser Doppler Velocimeters Digital Electronics Signal Processing Frequencies Digital Filters Laser Applications Signal Detection Laser Anemometers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
