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Title: 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 Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1131886
Patent Number(s):
8731027
Application Number:
13/311,357
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
Patent Classifications (CPCs):
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04B - TRANSMISSION
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04J - MULTIPLEX COMMUNICATION
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}
}

Works referenced in this record:

Spread spectrum communication system using DECT protocol
patent, August 2001


Filter bank constituting method and filter bank apparatus
patent, April 2003


Multi-channel wavelet codec
patent, August 2010


Apparatus and method for symbol alignment in a multi-point OFDM/DMT digital communications system
patent-application, March 2002


Nyquist filter and method
patent-application, March 2004


Digital receiver capable of processing modulated signals at various data rates
patent-application, May 2004


Method and System for Sliding Window Phase Estimator for WCDMA Automatic Frequency Correction
patent-application, June 2008


Method and Device for Synchronizing Rectilinear or Quasi-Rectilinear Links in the Presence of Interference
patent-application, September 2008


Combined Ofdm and Wavelet Multi-Carrier Transceiver
patent-application, December 2008


Carrier Allocation and Time Sharing FOR OFDMA/TDMA Networks
patent-application, September 2010


Multi-Path Timing Tracking and Impairment Modeling for Improved Grake Receiver Performance in Mobility Scenarios
patent-application, January 2011


Adaptive Gain Control Based on Signal-to-Noise Ratio for Noise Suppression
patent-application, August 2011


A Square-Root Nyquist (M) Filter Design for Digital Communication Systems
journal, May 2008


Finite Duration Root Nyquist Pulses with Maximum In-Band Fractional Energy
journal, September 2010


    Works referencing / citing this record:

    Methods and apparatuses using filter banks for multi-carrier spread spectrum signals
    patent, January 2017