A system and method for establishing and maintaining optical links between optical transceiver nodes in a free space optical communications network is disclosed. The system and method provide a protocol for acquisition of an optical link between transceivers in two adjacent nodes and for re-acquisition should a node be replaced or moved. The system and method also provide a protocol for tracking small movements of one or both nodes in a link. Also, the system and method provide a protocol for recovering a link that is temporarily lost.
Establishment And Maintenance Of Optical Links Between Optical Transceiver Nodes In Free-Space Optical Communications Networks
A system and method for establishing and maintaining optical links between optical transceiver nodes in a free space optical communications network is disclosed. The system and method provide a protocol for acquisition of an optical link between transceivers in two adjacent nodes and for re-acquisition should a node be replaced or moved. The system and method also provide a protocol for tracking small movements of one or both nodes in a link. Also, the system and method provide a protocol for recovering a link that is temporarily lost.
Establishment And Maintenance Of Optical Links Between Optical Transceiver Nodes In Free-Space Optical Communications Networks
A system and method for establishing and maintaining optical links between optical transceiver nodes in a free space optical communications network is disclosed. The system and method provide a protocol for acquisition of an optical link between transceivers in two adjacent nodes and for re-acquisition should a node be replaced or moved. The system and method also provide a protocol for tracking small movements of one or both nodes in a link. Also, the system and method provide a protocol for recovering a link that is temporarily lost.
Establishment And Maintenance Of Optical Links Between Optical Transceiver Nodes In Free-Space Optical Communications Networks
A system and method for establishing and maintaining optical links between optical transceiver nodes in a free space optical communications network is disclosed. The system and method provide a protocol for acquisition of an optical link between transceivers in two adjacent nodes and for re-acquisition should a node be replaced or moved. The system and method also provide a protocol for tracking small movements of one or both nodes in a link. Also, the system and method provide a protocol for recovering a link that is temporarily lost.
Victor J. Chan - San Diego CA, US Gene Morgan - Lakeside CA, US Bruce Allen Brentlinger - San Diego CA, US Jimmy Hannan - San Diego CA, US Andrew Pavelchek - Poway CA, US
International Classification:
G01S 7/40
US Classification:
342 21, 342173
Abstract:
Methods and apparatus are provided to facilitate the alignment of an antenna. In one aspect, there is provided a transceiver. The transceiver may include an antenna and a downconverter module coupled to the antenna. The downconverter module may convert a signal received at the antenna to another signal. The downconverter module may measure received signal strength. The transceiver may also include a sequence detector for detecting an error rate of a sequence included in the other signal. The transceiver may also include an output module for providing an output representative the error rate, the received signal strength, and a combination of the error rate and the received signal strength. The provided output may be used to enable alignment of an antenna. Related apparatus, systems, methods, and articles are also described.