Simulated VLF/LF noise generator
US4173000A · kind A · utility
9Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1978 |
| Grant date | Oct 30, 1979 |
| Priority date | — |
| Expiry date | Aug 21, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B29/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A reliable, repeatable and stable generator capable of producing noise with nown or given amplitude probability distributions up to 96 dB dynamic range, commonly found in atmospheric noise VLF/LF frequency bands. A continuous impulse noise amplitude probability distribution is digitally synthesized in a piece-wise fashion in 6 dB amplitude increments. These increments are linearly combined with a digitally generated Gaussian noise component for simulation of VLF and LF atmospheric noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.