Transmit-reference methods in software defined radio platforms for communication in harsh propagation environments and systems thereof

Dowla, Farid; Nekoogar, Faranak

Title: Transmit-reference methods in software defined radio platforms for communication in harsh propagation environments and systems thereof

Abstract

A method for adaptive Radio Frequency (RF) jamming according to one embodiment includes dynamically monitoring a RF spectrum; detecting any undesired signals in real time from the RF spectrum; and sending a directional countermeasure signal to jam the undesired signals. A method for adaptive Radio Frequency (RF) communications according to another embodiment includes transmitting a data pulse in a RF spectrum; and transmitting a reference pulse separated by a predetermined period of time from the data pulse; wherein the data pulse is modulated with data, wherein the reference pulse is unmodulated. A method for adaptive Radio Frequency (RF) communications according to yet another embodiment includes receiving a data pulse in a RF spectrum; and receiving a reference pulse separated in time from the data pulse, wherein the data pulse is modulated with data, wherein the reference pulse is unmodulated; and demodulating the pulses.

Inventors:: Dowla, Farid; Nekoogar, Faranak

Issue Date:: 2017-01-03

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1337991

Patent Number(s):: 9537604

Application Number:: 14/612,205

Assignee:: Lawrence Livemore National Security, LLC (Livermore, CA)

Patent Classifications (CPCs):: H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04K - SECRET COMMUNICATION

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04W - WIRELESS COMMUNICATION NETWORKS

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H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04K - SECRET COMMUNICATION
H04K2203/00 - Jamming of communication

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04W - WIRELESS COMMUNICATION NETWORKS
H04W4/90 - Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04K - SECRET COMMUNICATION
H04K3/42 - {characterized by the control of the jamming frequency or wavelength}
H04K3/44 - {characterized by the control of the jamming waveform or modulation type}

H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03K - PULSE TECHNIQUE
H03K3/00 - Circuits for generating electric pulses

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04K - SECRET COMMUNICATION
H04K3/45 - {characterized by including monitoring of the target or target signal, e.g. in reactive jammers or follower jammers for example by means of an alternation of jamming phases and monitoring phases, called "look-through mode"}

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04B - TRANSMISSION
H04B1/0003 - {Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain

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DOE Contract Number:: AC52-07NA27344

Resource Type:: Patent

Resource Relation:: Patent File Date: 2015 Feb 02

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; 97 MATHEMATICS AND COMPUTING

Citation Formats


                    Dowla, Farid, and Nekoogar, Faranak. Transmit-reference methods in software defined radio platforms for communication in harsh propagation environments and systems thereof.  United States: N. p., 2017. 
        Web.

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                    Dowla, Farid, & Nekoogar, Faranak. Transmit-reference methods in software defined radio platforms for communication in harsh propagation environments and systems thereof.  United States.

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                    Dowla, Farid, and Nekoogar, Faranak. Tue .  
        "Transmit-reference methods in software defined radio platforms for communication in harsh propagation environments and systems thereof".  United States.  https://www.osti.gov/servlets/purl/1337991.

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@article{osti_1337991,

  title        = {Transmit-reference methods in software defined radio platforms for communication in harsh propagation environments and systems thereof},

  author       = {Dowla, Farid and Nekoogar, Faranak},

  abstractNote = {A method for adaptive Radio Frequency (RF) jamming according to one embodiment includes dynamically monitoring a RF spectrum; detecting any undesired signals in real time from the RF spectrum; and sending a directional countermeasure signal to jam the undesired signals. A method for adaptive Radio Frequency (RF) communications according to another embodiment includes transmitting a data pulse in a RF spectrum; and transmitting a reference pulse separated by a predetermined period of time from the data pulse; wherein the data pulse is modulated with data, wherein the reference pulse is unmodulated. A method for adaptive Radio Frequency (RF) communications according to yet another embodiment includes receiving a data pulse in a RF spectrum; and receiving a reference pulse separated in time from the data pulse, wherein the data pulse is modulated with data, wherein the reference pulse is unmodulated; and demodulating the pulses.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2017},

  month        = {1}

}

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Works referenced in this record:

Delay hopped transmitted reference experimental results
conference, January 2002

van Stralen, N.; Dentinger, A.; Welles, K.
Ultra Wideband Systems and Technologies
https://doi.org/10.1109/UWBST.2002.1006326

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Title: Transmit-reference methods in software defined radio platforms for communication in harsh propagation environments and systems thereof

Abstract

Citation Formats

Delay hopped transmitted reference experimental results conference, January 2002

Delay hopped transmitted reference experimental results
conference, January 2002