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

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:
 [1]
  1. Overland Park, KS
Publication Date:
Research Org.:
Kansas City Plant (KCP), Kansas City, MO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
913246
Patent Number(s):
7,239,674
Application Number:
10/454,805
Assignee:
Honeywell Federal Manufacturing & Technologies, LLC (Kansas City, MO) KCP
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., 2007. Web.
Dimsdle, Jeffrey William. Method of differential-phase/absolute-amplitude QAM. United States.
Dimsdle, Jeffrey William. Tue . "Method of differential-phase/absolute-amplitude QAM". United States. https://www.osti.gov/servlets/purl/913246.
@article{osti_913246,
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 = {Tue Jul 03 00:00:00 EDT 2007},
month = {Tue Jul 03 00:00:00 EDT 2007}
}

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