Study of triple transit echo for time sidelobe of SAW matched filter

Author

Shiba, Takashi ; Yuhara, A. ; Oda, Koji ; Tsubouchi, Kazuo

Author_Institution

Hitachi Media Electron. Ltd., Yokohama, Japan

Volume

1

fYear

1996

fDate

3-6 Nov 1996

Firstpage

187

Abstract

Surface Acoustic Wave (SAW) matched filter is a key-device for Spread Spectrum (SS) communication. We have shown that the Triple Transit Echo (TTE) level of a matched filter for the SS signal is lower than that of an ordinary SAW transversal filter for CW signals even if the external circuit impedance is fully matched to the SAW matched filter. A time-domain analysis using a circuit network tool for various kinds of construction has been used for the matched filter with a 25-chip low autocorrelation sequence. The analysis agreed with the experiments to verify this TTE behavior

Keywords

electric admittance; equivalent circuits; matched filters; matrix algebra; spread spectrum communication; surface acoustic wave filters; time-domain analysis; BPSK signal response; SAW matched filter; spread spectrum communication; time sidelobe; time-domain analysis; triple transit echo; Admittance; Autocorrelation; Equivalent circuits; Impedance; Matched filters; Surface acoustic wave devices; Surface acoustic waves; Time domain analysis; Time factors; Transversal filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1996. Proceedings., 1996 IEEE

Conference_Location

San Antonio, TX

ISSN

1051-0117

Print_ISBN

0-7803-3615-1

Type

conf

DOI

10.1109/ULTSYM.1996.583956

Filename

583956