Title :
SAW matched filters for the asynchronous chip/carrier S-S wireless systems
Author :
Hosaka, N. ; Shiba, T. ; Ogawa, S. ; Moteki, M. ; Hamazumi, H. ; Shibuya, Kazuhiko ; Oda, K.
Author_Institution :
Hitachi Media Electron. Co. Ltd., Yokohama, Japan
Abstract :
This paper introduces the construction of the SAW matched filter for chip/carrier asynchronous S-S signal. The validity of the matched filter for detection of the correlation signal has verified by simulation and experiment. 18 dB D/U ratio has been obtained in the correlation output of the S-S synchronous signal demodulation circuit involving the asynchronous type SAW matched filter of the carrier frequency 375 MHz and the spread signal band width 140.395112 MHz
Keywords :
correlation methods; demodulation; matched filters; signal detection; spread spectrum communication; surface acoustic wave filters; 140.395112 MHz; 375 MHz; D/U ratio; SAW matched filter; asynchronous chip/carrier spread spectrum wireless system; correlation signal detection; demodulation circuit; Circuit simulation; Demodulation; Electrodes; Frequency; Matched filters; Multiaccess communication; Radiofrequency integrated circuits; Signal design; Surface acoustic waves; Wireless LAN;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.762176
