Woods Hole Oceanographic' Institution

Jonathan Ware

Norman Erwin Farr

Clifford Thomas Pontbriand

Leo-Paul Pelletier

Christopher McRaven

A system and method enabling precise range estimation and time synchronization between a first object such as a vehicle having a primary communications mechanism and an interconnected first controller, and a second object having a secondary communications mechanism and an interconnected second controller. The primary sends communications into the environment and the secondary receives them; the secondary then sends replies to the primary. The communications have information for determining range between the two objects and for comparing the second object's internal clock with a more accurate clock of the first object. Repeated exchanges of communications between the two objects enables additional precision of range as well as time synchronization information.

Wireless ranging and time synchronization

A system and method to broadcast an optical signal through an amorphous medium, including a primary emitter capable of producing a primary optical signal during at least one broadcast period and capable of transmitting the primary optical signal through the amorphous medium. A secondary emitter, separate from the primary emitter and in operation during at least a portion of the broadcast period, produces a secondary emission detectable by a detector during the broadcast period. A signal entrainment controller, in communication with the primary emitter and the secondary emitter, synchronizes the secondary emitter with the primary emitter to generate a resultant signal of higher intensity than the primary signal by itself.

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Mashpee, MA, United States of America

Jonathan Ware