Methods and apparatuses using filter banks for multi-carrier spread-spectrum signals
Abstract
A transmitter includes a synthesis filter bank to spread a data symbol to a plurality of frequencies by encoding the data symbol on each frequency, apply a common pulse-shaping filter, and apply gains to the frequencies such that a power level of each frequency is less than a noise level of other communication signals within the spectrum. Each frequency is modulated onto a different evenly spaced subcarrier. A demodulator in a receiver converts a radio frequency input to a spread-spectrum signal in a baseband. A matched filter filters the spread-spectrum signal with a common filter having characteristics matched to the synthesis filter bank in the transmitter by filtering each frequency to generate a sequence of narrow pulses. A carrier recovery unit generates control signals responsive to the sequence of narrow pulses suitable for generating a phase-locked loop between the demodulator, the matched filter, and the carrier recovery unit.
- Inventors:
- Issue Date:
- Research Org.:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1131886
- Patent Number(s):
- 8,731,027
- Application Number:
- 13/311,357
- Assignee:
- Battelle Energy Alliance, LLC (Idaho Falls, ID)
- DOE Contract Number:
- AC07-05ID14517
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2011 Dec 05
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Moradi, Hussein, Farhang, Behrouz, and Kutsche, Carl A. Methods and apparatuses using filter banks for multi-carrier spread-spectrum signals. United States: N. p., 2014.
Web.
Moradi, Hussein, Farhang, Behrouz, & Kutsche, Carl A. Methods and apparatuses using filter banks for multi-carrier spread-spectrum signals. United States.
Moradi, Hussein, Farhang, Behrouz, and Kutsche, Carl A. Tue .
"Methods and apparatuses using filter banks for multi-carrier spread-spectrum signals". United States. https://www.osti.gov/servlets/purl/1131886.
@article{osti_1131886,
title = {Methods and apparatuses using filter banks for multi-carrier spread-spectrum signals},
author = {Moradi, Hussein and Farhang, Behrouz and Kutsche, Carl A},
abstractNote = {A transmitter includes a synthesis filter bank to spread a data symbol to a plurality of frequencies by encoding the data symbol on each frequency, apply a common pulse-shaping filter, and apply gains to the frequencies such that a power level of each frequency is less than a noise level of other communication signals within the spectrum. Each frequency is modulated onto a different evenly spaced subcarrier. A demodulator in a receiver converts a radio frequency input to a spread-spectrum signal in a baseband. A matched filter filters the spread-spectrum signal with a common filter having characteristics matched to the synthesis filter bank in the transmitter by filtering each frequency to generate a sequence of narrow pulses. A carrier recovery unit generates control signals responsive to the sequence of narrow pulses suitable for generating a phase-locked loop between the demodulator, the matched filter, and the carrier recovery unit.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {5}
}
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