Differentially coherent code acquisition in Doppler

Author

Iinatti, Jari ; Pouttu, Ari

Author_Institution

Telecommun. Lab., Oulu Univ., Finland

Volume

2

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

703

Abstract

This paper considers the use of differentially coherent (DC) matched filter (MF) code acquisition in a direct-sequence (DS) spread spectrum system. Both a simplified analysis and simulation results are presented in an AWGN channel. The performance of the structure is compared to a conventional noncoherent (NC) MF acquisition. The performance measure is mainly the mean acquisition time, T_MA, but also receiver operating characteristics (ROC) curves are given. The results indicate that the differentially coherent method is robust by allowing the use of post detection integration also in quite severe Doppler shifts

Keywords

AWGN channels; Doppler shift; codes; matched filters; radio receivers; spread spectrum communication; synchronisation; AWGN channel; Doppler shifts; differentially coherent code acquisition; differentially coherent matched filter code acquisition; direct-sequence spread spectrum; mean acquisition time; performance; post detection integration; receiver operating characteristics curves; Analytical models; Autocorrelation; Delay; Doppler shift; Electronic mail; Laboratories; Matched filters; Multiple access interference; Spread spectrum communication; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th

ISSN

1090-3038

Print_ISBN

0-7803-5435-4

Type

conf

DOI

10.1109/VETECF.1999.798420

Filename

798420