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

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.
Issue Date:
OSTI Identifier:
Lawrence Livemore National Security, LLC (Livermore, CA) LLNL
Patent Number(s):
Application Number:
Contract Number:
Resource Relation:
Patent File Date: 2015 Feb 02
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
Country of Publication:
United States

Other works cited in this record:

System for countermeasures
patent, February 1962

Adaptive antenna array
patent, October 1988

Anti-jamming apparatus and method for a radar system
patent, June 1990

Integrated GPS/interference location system
patent, August 1999

Method and apparatus for performing frequency hopping adaptation
patent, September 2000

Interference detection for spread spectrum systems
patent, October 2000

Method and system of generating a modulated chirp signal
patent, April 2003

Signal recognizer for communications signals
patent, February 2004

UWB communication receiver feedback loop
patent, December 2007

System and method for ultra-wideband (UWB) communication transceiver
patent, April 2009

Apparatus, method and computer program product for providing automated backup to TDM network connections over an IP network
patent, January 2012

Method and apparatus for generation of radio frequency jamming signals
patent, July 2012

Multiple frequency band multiple standard transceiver
patent, July 2012

Wireless communication system compensating for interference and related methods
patent, January 2013

Cat litter box liner with an absorbent scratch resistant pad
patent, January 2013

System and method for stacking receiver channels for increased system through-put in an RF data transmission system
patent, July 2013

Method and apparatus relating to spectrum sensing
patent, August 2013

Transmit-reference methods in software defined radio platforms for communication in harsh propagation environments and systems thereof
patent, March 2015

System and method for adapting RF transmissions to mitigate the effects of certain interferences
patent-application, October 2002

Use of chip repetition to produce a flexible bandwidth DS-CDMA system
patent-application, November 2002

Apparatus and method for increasing received signal-to-noise ratio in a transmit reference ultra-wideband system
patent-application, June 2003

Methods and electronic devices for wireless ad-hoc network communications using receiver determined channels and transmitted reference signals
patent-application, June 2004

Method and device for estimating sir of a signal
patent-application, July 2004

Multi-pulse multi-delay (MPMD) multiple access modulation for UWB
patent-application, October 2004

Cross-Eye Technique Implementation
patent-application, January 2005

Methods and apparatus for high throughput multiple radio wireless cells and networks
patent-application, January 2005

Inter-satellite crosslink communications system, apparatus, method and computer program product
patent-application, June 2005

System and method for triggering an explosive device
patent-application, April 2006

Single-pulse and multi-pulse transmitted reference impulse radio systems with energy detecting receivers
patent-application, September 2006

GPS Enabled emergency messaging system
patent-application, September 2007

M-ARY orthogonal coded/balanced UWB transmitted reference systems
patent-application, October 2007

Wireless data transmission method and apparatus
patent-application, December 2007

Delay line calibration
patent-application, May 2008

Open wireless architecture virtualization system for wireless mobile terminal device
patent-application, June 2008

Distribution of routing tables for satellite with reference terminal functionality
patent-application, September 2008

Portable handheld satellite phone conversion module
patent-application, September 2008

Packet routing based on application source
patent-application, October 2008

Method and system for secure position determination
patent-application, October 2008

Transmission method and transmission apparatus used in multiantenna wireless communication system
patent-application, February 2009

Regenerative jammer with multiple jamming algorithms
patent-application, March 2009

Multi-pulse frequency shifted (MPFS) multiple access modulation for ultra wideband
patent-application, March 2009

Common communication terminal architecture and method
patent-application, March 2009

Stand alone emergency signal device housed in cell phone
patent-application, March 2009

Non-Data-Aided Channel Estimators for Multipath and Multiple Antenna Wireless Systems
patent-application, April 2009

Method for intrusion detection via changes in the presence of short range RF devices
patent-application, June 2009

Method and apparatus for heavy-tailed waveform generation used for communication disruption
patent-application, June 2009

Communications and data link jammer incorporating fiber-optic delay line technology
patent-application, August 2009

Multi-band jammer
patent-application, September 2009

Impulse ultra-wideband radio communication system
patent-application, October 2009

Method of acquiring initial synchronization in impulse wireless communication and receiver
patent-application, November 2009

Self-positioning access points
patent-application, December 2009

Jammer detection with adaptive fast attack/slow release response for continuous and burst mode
patent-application, February 2010

Floatation device
patent-application, April 2010

Method and apparatus for excision of narrowband interference signals
patent-application, June 2010

Network service for modularly constructing a software defined radio
patent-application, July 2010

Communication terminal
patent-application, November 2010

Transmit-reference methods in software denied radio platforms for communication in harsh propagation environments and systems thereof
patent-application, December 2010

Apparatus and method for dynamic scaling of ADC sampling rate to avoid receiver interference
patent-application, December 2010

High dynamic range receiver front-end with q-enhancement
patent-application, December 2010

Radioterminals and operating methods that receive multiple measures of information from multiple sources
patent-application, August 2011

Space based local area network (SBLAN)
patent-application, January 2012

Interference detection, characterization and location in a wireless communications or broadcast system
patent-application, June 2012

Delay hopped transmitted reference experimental results
conference, January 2002

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