NDLI: Fast imaging algorithm for the multiple receiver synthetic aperture sonars

Content Provider	IET Digital Library
Author	Zhang, Xuebo Dai, Xuntao Yang, Bo
Abstract	For the multiple receiver synthetic aperture sonar, traditional fast imaging algorithms are limited by the approximation of the point target reference spectrum (PTRS). To solve this problem, a novel imaging algorithm based on a new PTRS is proposed in this study. With the presented method, the matched filtering function in the azimuth dimension must be first derived. Then, the range–azimuth coupling phase is obtained by using the difference between the PTRS and the matched filtering function in the azimuth dimension. To perform the decoupling between the range dimension and the azimuth dimension, the bulk range cell migration correction (RCMC) and the differential RCMC based on the range-dependent sub-block processing method are used. Compared to traditional methods, the new method avoids the complicated series expansion. Furthermore, it can handle the general case with the explicit point of the stationary phase. Processing results of the simulated data and the real data indicate that the high-performance results can be got by using the presented method. Moreover, it further shows that the presented method is very suitable for the wide-swath imagery.
Starting Page	1276
Ending Page	1284
Page Count	9
ISSN	17518784
Volume Number	12
e-ISSN	17518792
Issue Number	Issue 11, Nov (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/12/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2018.5040
Journal	IET Radar, Sonar & Navigation
Publisher Date	2018-07-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Acoustic Receivers Approximation Theory Azimuth Dimension Bulk Range Cell Migration Correction Differential RCMC Fast Imaging Algorithm Interpolation And Function Approximation Matched Filtering Function Multiple Receiver Synthetic Aperture Sonars Numerical Analysis Optical, Image And Video Signal Processing Point Target Reference Spectrum Approximation PTRS Range-azimuth Coupling Phase Range-dependent Sub-block Processing Method Series Expansion Sonar And Acoustic Radar Sonar Imaging Stationary Phase Wide-swath Imagery
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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