Communication signal processors and methods compatible with a variety of modulation types

Communication signal processors and methods compatible with a variety of modulation types

A digital signal processor (20) is provided which is compatible with a large variety of modulation processes (e.g., BPSK, QPSK, pi /4 PSK, M-ary FSK and M-ary PSK). The processor has a transmit section (40) which can convert input data streams into baseband I and Q signals and a receive section (60)...

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Hauptverfasser: LEVINE, ALLAN L., JR, CAI, KHIEM V
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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CAI, KHIEM V
description A digital signal processor (20) is provided which is compatible with a large variety of modulation processes (e.g., BPSK, QPSK, pi /4 PSK, M-ary FSK and M-ary PSK). The processor has a transmit section (40) which can convert input data streams into baseband I and Q signals and a receive section (60) which can recover data streams from input baseband I and Q signals. The transmit section includes a direct I/Q modulator (46) and a common phase modulator (44) and the receive section includes an M-FSK to M-PSK converter (350) and a common phase demodulator (72). The processor is particularly suited for realization as an application-specific integrated circuit (ASIC) which can be integrated in multiband, multimode transceivers.
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subjects BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title Communication signal processors and methods compatible with a variety of modulation types
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