Repeater diversity spread spectrum communication system
US5233626A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 11, 1992 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | May 11, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/7117
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A repeater diversity spread spectrum communication system provides substantially fade free communications between a transmitter (1) and a receiver (7). A transmitted signal is relayed through a plurality of linear communications repeaters (3-6) that produce copies of the transmitted signal, the copies each arriving through an independently fading signal path. The transmitter and/or the receiver may be mounted upon a mobile platform, and the plurality of repeaters may be terrestrial, or may be provided in satellites in low earth orbit or in geosynchronous earth orbit. The receiver processes the received signal copies to equalize them to one another in delay, frequency, and phase, and then combines the multiple received and equalized signal copies to produce a composite signal having a greatly reduced fading depth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.