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Title: 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:
;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1079217
Patent Number(s):
8299966
Application Number:
12/609,554
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING
G - PHYSICS G01 - MEASURING G01C - MEASURING DISTANCES, LEVELS OR BEARINGS
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/1079217.
@article{osti_1079217,
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 = {2012},
month = {10}
}

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Works referenced in this record:

Frequency-hopping spread-spectrum modulation for digital communications over electrical power lines
journal, May 1990


Land-vehicle navigation using GPS
journal, January 1999


Modern inertial navigation technology and its application
journal, April 2000