Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2006-08-15
2006-08-15
Vo, Don N. (Department: 2631)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S341000, C375S343000, C375S347000, C375S350000
Reexamination Certificate
active
07092452
ABSTRACT:
A digital receiver automatically detects and non-coherently demodulates a multiplicity of interfering digitally modulated signals transmitted simultaneously at approximately the same carrier frequency. The receiver includes one or more antenna inputs (e.g., polarization and/or space diverse), a parameter estimator module, and a multiuser detector for estimating the data transmitted by each interfering signals and adapted to operate with at least one of a MUD algorithm with partially quantized prior information and a MUD algorithm based on prewhitened data.
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Brommer Karl D
Learned Rachel E
MacLeod Robert B
McElwain Thomas P
Niedzwiecki Joshua D
Bae Systems Information and Electronic Systems Integration INC
Maine & Asmus
Vo Don N.
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