Method of differential-phase/absolute-amplitude QAM

Dimsdle, Jeffrey William

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Title: Method of differential-phase/absolute-amplitude QAM

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Abstract

A method of quadrature amplitude modulation involving encoding phase differentially and amplitude absolutely, allowing for a high data rate and spectral efficiency in data transmission and other communication applications, and allowing for amplitude scaling to facilitate data recovery; amplitude scale tracking to track-out rapid and severe scale variations and facilitate successful demodulation and data retrieval; 2.sup.N power carrier recovery; incoherent demodulation where coherent carrier recovery is not possible or practical due to signal degradation; coherent demodulation; multipath equalization to equalize frequency dependent multipath; and demodulation filtering.

Inventors:

Dimsdle, Jeffrey William ^[1]

Overland Park, KS

Issue Date:: 2009-09-01

Research Org.:: Kansas City Plant (KCP), Kansas City, MO (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 988841

Patent Number(s):: 7583743

Application Number:: 11/672,671

Assignee:: Honeywell Federal Manufacturing & Technologies, LLC (Kansas City, MO)

Patent Classifications (CPCs):: H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION

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H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L27/362 - {Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated
H04L27/3809 - {Amplitude regulation arrangements}
H04L27/3818 - {using coherent demodulation, i.e. using one or more nominally phase synchronous carriers
H04L27/3845 - {using non - coherent demodulation, i.e. not using a phase synchronous carrier}

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DOE Contract Number:: AC04-01AL66850

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 97 MATHEMATICS AND COMPUTING

Citation Formats


                    Dimsdle, Jeffrey William. Method of differential-phase/absolute-amplitude QAM.  United States: N. p., 2009. 
        Web.

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                    Dimsdle, Jeffrey William. Method of differential-phase/absolute-amplitude QAM.  United States.

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                    Dimsdle, Jeffrey William. Tue .  
        "Method of differential-phase/absolute-amplitude QAM".  United States.  https://www.osti.gov/servlets/purl/988841.

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@article{osti_988841,

  title        = {Method of differential-phase/absolute-amplitude QAM},

  author       = {Dimsdle, Jeffrey William},

  abstractNote = {A method of quadrature amplitude modulation involving encoding phase differentially and amplitude absolutely, allowing for a high data rate and spectral efficiency in data transmission and other communication applications, and allowing for amplitude scaling to facilitate data recovery; amplitude scale tracking to track-out rapid and severe scale variations and facilitate successful demodulation and data retrieval; 2.sup.N power carrier recovery; incoherent demodulation where coherent carrier recovery is not possible or practical due to signal degradation; coherent demodulation; multipath equalization to equalize frequency dependent multipath; and demodulation filtering.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2009},

  month        = {9}

}

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Method of differential-phase/absolute-amplitude QAM

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A method of quadrature amplitude modulation involving encoding phase differentially and amplitude absolutely, allowing for a high data rate and spectral efficiency in data transmission and other communication applications, and allowing for amplitude scaling to facilitate data recovery; amplitude scale tracking to track-out rapid and severe scale variations and facilitate successful demodulation and data retrieval; 2.sup.N power carrier recovery; incoherent demodulation where coherent carrier recovery is not possible or practical due to signal degradation; coherent demodulation; multipath equalization to equalize frequency dependent multipath; and demodulation filtering.
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A method of quadrature amplitude modulation involving encoding phase differentially and amplitude absolutely, allowing for a high data rate and spectral efficiency in data transmission and other communication applications, and allowing for amplitude scaling to facilitate data recovery; amplitude scale tracking to track-out rapid and severe scale variations and facilitate successful demodulation and data retrieval; 2.sup.N power carrier recovery; incoherent demodulation where coherent carrier recovery is not possible or practical due to signal degradation; coherent demodulation; multipath equalization to equalize frequency dependent multipath; and demodulation filtering.
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Method of differential-phase/absolute-amplitude QAM

Patent Dimsdle, Jeffrey William [Overland Park, KS]

A method of quadrature amplitude modulation involving encoding phase differentially and amplitude absolutely, allowing for a high data rate and spectral efficiency in data transmission and other communication applications, and allowing for amplitude scaling to facilitate data recovery; amplitude scale tracking to track-out rapid and severe scale variations and facilitate successful demodulation and data retrieval; 2.sup.N power carrier recovery; incoherent demodulation where coherent carrier recovery is not possible or practical due to signal degradation; coherent demodulation; multipath equalization to equalize frequency dependent multipath; and demodulation filtering.
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