Real-Time Implementation of Synthetic Aperture Sonar Imaging on High Performance Clusters

Author

Li, Baoli ; Liu, Wei ; Liu, Jiyuan ; Zhang, Chunhua

Author_Institution

Inst. of Acoust., Chinese Acad. of Sci., Beijing, China

fYear

2010

fDate

9-11 June 2010

Firstpage

89

Lastpage

92

Abstract

A flexible and scalable architecture that implements real-time synthetic aperture sonar (SAS) imaging on high performance clusters (HPCs) is introduced in this paper. Combing HPCs with application of a hybrid MPI and OpenMP parallel programming model, the lookup table algorithm for SAS image reconstruction based on the time-domain correlation algorithm is realized in parallel. Considering the huge computation load of the lookup table algorithm, the pulse-compressed data is partitioned into strips along the range direction which are distributed to the nodes of HPCs. The scalability allows the lookup table imaging cluster nodes to be added or removed without needing to recompile the existing software, and automatic burden balancing is considered. The result of lake trial verifies that this parallel algorithm on HPCs can provide good quality images and meantime have highly real time rate.

Keywords

application program interfaces; correlation methods; electrical engineering computing; image reconstruction; message passing; pulse compression; sonar imaging; synthetic aperture sonar; table lookup; time-domain analysis; workstation clusters; OpenMP parallel programming model; SAS image reconstruction; hybrid MPI parallel programming model; lookup table imaging cluster node algorithm; pulse-compressed data partitioning; synthetic aperture sonar imaging; time-domain correlation algorithm; Clustering algorithms; Distributed computing; Image reconstruction; Parallel programming; Partitioning algorithms; Scalability; Strips; Synthetic aperture sonar; Table lookup; Time domain analysis; Lookup Table Algorithm; MPI; OpenMP; Synthetic Aperture Sonar;

fLanguage

English

Publisher

ieee

Conference_Titel

Software Engineering Artificial Intelligence Networking and Parallel/Distributed Computing (SNPD), 2010 11th ACIS International Conference on

Conference_Location

London

Print_ISBN

978-1-4244-7422-6

Electronic_ISBN

978-1-4244-7421-9

Type

conf

DOI

10.1109/SNPD.2010.23

Filename

5521506