Modulation identification device

Details Modulation identification device Modulation identification device

2007-08-21

2007-08-21

Payne, David C. (Department: 2611)

Pulse or digital communications

Transmitters

C327S291000, C332S106000, C341S020000, C341S173000

Reexamination Certificate

active

09892919

ABSTRACT:
A modulation identification device can be used for detecting the modulation type of a wirelessly transmitted and modulated RF signal without a-priori information on the kind of modulation used. The modulation identification device (1) comprises a n-port junction (17), n being an integer equal to or larger than three. The n-port junction (17) is supplied with the modulated RF signal (2) and a second RF signal (3) from a local oscillator. The n-port junction (17) outputs at least one third RF signal to at least one power detector (18). A signal processing unit (6) processes the power detected output of the n-port junction (17) to generate at least one flag (10) indicating the identified modulation type.

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