Pulse or digital communications – Transmitters
Reexamination Certificate
2006-09-05
2006-09-05
Bayard, Emmanuel (Department: 2611)
Pulse or digital communications
Transmitters
Reexamination Certificate
active
07103109
ABSTRACT:
A method eliminates spectral lines in a time hopping ultra wide bandwidth signal. First, a train of pulses is generated from input symbols. The pulses are then modulated in time according to symbols. The modulation can use pulse position modulation and time hopping. A polarity of the pulses is inverted randomly before transmitting the pulses as an ultra wide bandwidth signal. By randomly inverting the polarity of the pulses spectral lines in the ultra wide bandwidth signal are eliminated.
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Molisch Andreas
Nakache Yves-Paul
Zhang Jinyun
Bayard Emmanuel
Brinkman Dirk
Cardin Andrew J.
Mitsubishi Electric Research Laboratories Inc.
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