Robust low-frequency spread-spectrum navigation system
Abstract
Methods and apparatus are described for a navigation system. A process includes providing a plurality of transmitters distributed throughout a desired coverage area; locking the plurality of transmitters to a common timing reference; transmitting a signal from each of the plurality of transmitters. An apparatus includes a plurality of transmitters distributed throughout a desired coverage area; wherein each of the plurality of transmitters comprises a packet generator; and wherein the plurality of transmitters are locked to a common timing reference.
- Inventors:
-
- Loudon, TN
- Powell, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1035050
- Patent Number(s):
- 8089408
- Application Number:
- US patent applicaiton 12/609,883
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01C - MEASURING DISTANCES, LEVELS OR BEARINGS
G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Smith, Stephen F, and Moore, James A. Robust low-frequency spread-spectrum navigation system. United States: N. p., 2012.
Web.
Smith, Stephen F, & Moore, James A. Robust low-frequency spread-spectrum navigation system. United States.
Smith, Stephen F, and Moore, James A. Tue .
"Robust low-frequency spread-spectrum navigation system". United States. https://www.osti.gov/servlets/purl/1035050.
@article{osti_1035050,
title = {Robust low-frequency spread-spectrum navigation system},
author = {Smith, Stephen F and Moore, James A},
abstractNote = {Methods and apparatus are described for a navigation system. A process includes providing a plurality of transmitters distributed throughout a desired coverage area; locking the plurality of transmitters to a common timing reference; transmitting a signal from each of the plurality of transmitters. An apparatus includes a plurality of transmitters distributed throughout a desired coverage area; wherein each of the plurality of transmitters comprises a packet generator; and wherein the plurality of transmitters are locked to a common timing reference.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 03 00:00:00 EST 2012},
month = {Tue Jan 03 00:00:00 EST 2012}
}
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Works referenced in this record:
Frequency-hopping spread-spectrum modulation for digital communications over electrical power lines
journal, May 1990
- Dostert, K. M.
- IEEE Journal on Selected Areas in Communications, Vol. 8, Issue 4