System and method for positioning pulses in time using a code that provides spectral shaping
US6937639B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2001 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Aug 14, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/004
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system, method and computer program product for positioning pulses, including positioning pulses within a specified time layout according to one or more codes to produce a pulse train having one or more predefined spectral characteristics where a difference in time position between adjacent pulses positioned to produce a spectral characteristic differs from another difference in time position between other adjacent pulses positioned to produce the spectral characteristic. The present invention may include shaping a code spectrum according to a spectral template in order to preserve a pre-defined code characteristic. A pre-defined code characteristic can include desirable correlation, or spectral properties. A transmitter incorporating the present invention can avoid transmitting at a particular frequency. Similarly, a receiver can avoid interference with a signal transmitting at a particular frequency. A radar system, can avoid a radar jammer attempting to jam a particular frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.