Differentially coherent code acquisition in jamming and data modulation

Author

Iinatti, Jari ; Pouttu, Ari

Author_Institution

Telecommun. Lab., Oulu Univ., Finland

Volume

1

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

579

Abstract

This paper considers the use of differentially coherent (DC) matched filter (MF) code acquisition in a direct-sequence (DS) spread-spectrum system. Simulation results in tone jamming and with data modulation are presented. The performance of the structure is compared to conventional noncoherent (NC) MF acquisition. The performance measure is the mean acquisition time, T_MA. The results indicate that the differentially coherent method is a robust method by allowing the use of post detection integration also in case of jamming and data modulation, in addition to quite severe Doppler shifts

Keywords

Doppler shift; filtering theory; jamming; matched filters; modulation; signal detection; spread spectrum communication; synchronisation; DS-SS; Doppler shifts; data modulation; differentially coherent code acquisition; differentially coherent matched filter; direct-sequence spread-spectrum system; mean acquisition time; noncoherent matched filter acquisition; performance; performance measure; post detection integration; simulation results; tone jamming; Doppler shift; Electronic mail; Envelope detectors; Frequency synchronization; Jamming; Laboratories; Matched filters; Modulation coding; Signal to noise ratio; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference Proceedings, 1999. MILCOM 1999. IEEE

Conference_Location

Atlantic City, NJ

Print_ISBN

0-7803-5538-5

Type

conf

DOI

10.1109/MILCOM.1999.822749

Filename

822749