QAM Modulator

A digital communication system using a QAM signal and a honeycomb constellation multilevel signal. The digital communication system includes a modulator (100a) having a unit (101) transforming in-phase and quadrature-phase data (D(i), D(q)) arranged in a quadrature lattice constellation into two dat...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	IWAMATSU, TAKANORI, OTAWARA-SHI TOCHIGI 324, JP, MINOWA, MORIHIKO, MACHIDA-SHI TOKYO 194, JP, NAKAMURA, HIROSHI, SAGAMIHARA-SHI KANAGAWA 228, JP, TAKENAKA, SADAO, YOKOHAMA-SHI KANAGAWA 223, JP, AONO, YOSHIHITO, NASU-GUN TOCHIGI 329-27, JP, DAIDO, YOSHIMASA, YOKOHAMA-SHI KANAGAWA 245, JP
Format:	Patent
Sprache:	ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A digital communication system using a QAM signal and a honeycomb constellation multilevel signal. The digital communication system includes a modulator (100a) having a unit (101) transforming in-phase and quadrature-phase data (D(i), D(q)) arranged in a quadrature lattice constellation into two data arranged in a honeycomb constellation, and a unit (102) amplitude-modulating the transformed data, and a demodulator (200a) for demodulating a transmitted signal output from the modulator.