Experimental assessment of sparse channel estimations for passive-phase conjugation communications

Author

Zhang, Guosong ; Peng, Bo ; Dong, Hefeng

Author_Institution

Dept. of Electron. & Telecommun., Norwegian Univ. of Sci. & Technol., Trondheim, Norway

fYear

2012

fDate

25-30 March 2012

Firstpage

2701

Lastpage

2704

Abstract

This paper investigates sparse channel estimations to improve the performance of passive-phase conjugation (PPC) communications. PPC processing achieves pulse compression for time delayed arrivals at the receiver. This property is used for underwater communications with a reduced computational load. The channel estimation is required by PPC. In multipath channels, the sparse channel estimations can be used to improve the communication performance. The dominant arrivals are estimated by matching pursuit (MP) processing for PPC processing and the remained arrivals are treated as zeros. Using experimental data collected in a range dependent acoustic channel, MP processing is assessed in improving the performance of PPC communications.

Keywords

channel estimation; multipath channels; underwater acoustic communication; MP processing; PPC communications; dependent acoustic channel; matching pursuit processing; multipath channels; passive-phase conjugation communications; sparse channel estimation assessment; time delayed arrivals; underwater communications; Arrays; Channel estimation; Diversity reception; Matching pursuit algorithms; Receivers; Sonar equipment; Underwater acoustics; Passive-phase conjugation; decision feedback equalizer; match pursuit; sparse channel; underwater acoustic communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing (ICASSP), 2012 IEEE International Conference on

Conference_Location

Kyoto

ISSN

1520-6149

Print_ISBN

978-1-4673-0045-2

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2012.6288474

Filename

6288474