Method for the secure transmission of information using multiple LPD and LPI secondary carriers under a primary carrier with relative carrier offset
US8594149B2 · kind B2 · utility
1Cited by
4References
56Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2011 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Apr 3, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/69
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of reducing probability of detection and interception of a sub-carrier signal comprising encoding, using an encoder, information that is to be transmitted via the sub-carrier signal, modulating, using a modulator, the encoded information such that a modulated sub-carrier signal results, spreading, using a spreader, the modulated sub-carrier signal such that a spread sub-carrier signal results, and transmitting the spread sub-carrier signal at a frequency that is dynamic relative to an original carrier signal having a static frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.