Ehsan Malekshahi

Mr. Ehsan Malekshahi

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Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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3 July 2024 in Computer Networks
Verified
Journal Article
Open access
JMJordin McEachern
Jordin McEachern
EMEhsan Malekshahi
Ehsan Malekshahi
MHMojgan Mirzaei Hotkani
Mojgan Mirzaei Hotkani
Jean-François BousquetJean-François Bousquet
Jean-François Bousquet

10 May 2014 in International Journal of Control, Automation, and Systems
Verified
Journal Article
Closed access
PDF file
EMEhsan Malekshahi
Ehsan Malekshahi
SMSeyed-Mohammad-Ali Mohammadi
Seyed-Mohammad-Ali Mohammadi

8 October 2021 in Acoustics
Verified
Journal Article
Open access
PDF file
MHMojgan Mirzaei Hotkani
Mojgan Mirzaei Hotkani
Jean-François BousquetJean-François Bousquet
Jean-François Bousquet
SSSeyed Alireza Seyedin
Seyed Alireza Seyedin
SMSteven Bruce Martin
Steven Bruce Martin
EMEhsan Malekshahi
Ehsan Malekshahi
In this research, a new application using broadband ship noise as a source-of-opportunity to estimate the scattering field from the underwater targets is reported. For this purpose, a field trial was conducted in collaboration with JASCO Applied Sciences at Duncan’s Cove, Canada in September 2020. A hydrophone array was deployed in the outbound shipping lane at a depth of approximately 71 m to collect broadband noise data from different ship types and effectively localize the underwater targets. In this experiment, a target was installed at a distance (93 m) from the hydrophone array at a depth of 25 m. In this study, a matched field processing (MFP) algorithm is utilized for localization. Different propagation models are presented using Green’s function to generate the replica signal; this includes normal modes in a shallow water waveguide, the Lloyd-mirror pattern for deep water, as well as the image model. We use the MFP algorithm with different types of underwater environment models and a proposed estimator to find the best match between the received signal and the replica signal. Finally, by applying the scatter function on the proposed multi-channel cross correlation coefficient time-frequency localization algorithm, the location of target is detected.

28 October 2024
Verified
Conference Paper
Open access
EMEhsan Malekshahi
Ehsan Malekshahi
Jean-François BousquetJean-François Bousquet
Jean-François Bousquet
MSMae Seto
Mae Seto
CBChristophe Bescond
Christophe Bescond
PRParisa Rangraz
Parisa Rangraz