Real time dynamic correlator

Details Real time dynamic correlator Real time dynamic correlator

2007-10-09

2007-10-09

Payne, David C. (Department: 2611)

Pulse or digital communications

Transmitters

C375S224000, C375S297000, C327S291000, C332S106000, C341S020000, C341S173000, C455S063100, C455S114200, C455S126000

Reexamination Certificate

active

10446960

ABSTRACT:
Methods and systems are provided for evaluating electrical characteristics of a transmitter in real time using cross-correlation of a reference signal with a signal transmitted by the transmitter. A code generator is configured to generate reference code and test code that both include a plurality of frames of data. The reference code is output at a first rate and the test code is output at a second rate that is different from the first rate. A modulator is configured to modulate the reference code into a first modulated code. A correlator is configured to correlate the first modulated code with test code that has been modulated and transmitted by a transmitter.

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patent: 6757525 (2004-06-01), Ishikawa et al.
patent: 6885209 (2005-04-01), Mak et al.

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