DocumentCode
2103268
Title
New SAW-convolver demodulation techniques using Costas-Loop synchronization for high-bit-rate CDMA signals
Author
Takubo, C. ; Hikita, Masayuki ; Asai, Kikuo
Author_Institution
Central Res. Lab., Hitachi Ltd., Tokyo, Japan
Volume
1
fYear
1999
fDate
17-20 Oct. 1999
Firstpage
369
Abstract
A new synchronous-demodulation method for high-speed CDMA signal, that combines a SAW convolver with a Costas-Loop circuit has been proposed. In the receiver, synchronization of the received CDMA signal and the LO signal can be carried out independent of the transmitter. A QPSK-CDMA signal of 9 Mbps with 60 Mcps has been clearly demodulated using this method.
Keywords
code division multiple access; demodulation; quadrature phase shift keying; surface acoustic wave convolution; synchronisation; 60 Mbit/s; 9 Mbit/s; Costas-Loop circuit; LO signal; QPSK-CDMA signal; SAW convolver; synchronization; synchronous demodulation; Circuits; Convolvers; Delay lines; Demodulation; Frequency synchronization; Multiaccess communication; RF signals; Radio transmitters; Signal generators; Surface acoustic waves;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE
Conference_Location
Caesars Tahoe, NV
ISSN
1051-0117
Print_ISBN
0-7803-5722-1
Type
conf
DOI
10.1109/ULTSYM.1999.849421
Filename
849421
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