NDLI: Distributed broadband phased-MIMO sonar for detection of small targets in shallow water environments

Content Provider	IET Digital Library
Author	Pan, Xiang Li, Si Pan, Chen
Abstract	A joint processing framework is proposed for a distributed-phased multiple-input–multiple-output (phased-MIMO) sonar for detection of a small target. A transmit–receive-interactive strategy is combined with the array processing for a high signal-to-noise ratio (SNR) required by the distributed MIMO detection. The former provides the approximate location of a likely target by transmitting a probe signal to sense the environment. Then, the transmitting beams are steered to illuminate the target from different angles by which target echoes are enhanced and reverberation is suppressed. It is seen from the receiver operating characteristic curves that the distributed-phased-MIMO sonar is intermediate to the distributed MIMO sonar and the phased-array sonar in the low-SNR scenario. In the at-lake experiments of localisation of a small target, the distributed-phased-MIMO sonar system performs better than other two sonar systems due to exploiting the diversity gain and the transmitting array gain.
Starting Page	721
Ending Page	728
Page Count	8
ISSN	17518784
Volume Number	12
e-ISSN	17518792
Issue Number	Issue 7, Jul (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/12/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2017.0381
Journal	IET Radar, Sonar & Navigation
Publisher Date	2018-03-19
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Array Processing Array Signal Processing Distributed Broadband Phased-MIMO Sonar Distributed MIMO Detection Distributed MIMO Sonar Distributed-phased-MIMO Sonar System High Signal-to-noise Ratio Interpolation And Function Approximation Joint Processing Framework MIMO Communication Multiple-input–multiple-output Numerical Analysis Phased-array Sonar Probe Signal Radio Link And Equipment Shallow Water Environments Signal Processing And Detection Sonar Sonar System Statistics Target Echoes Transmitting Array Gain Transmitting Beam Transmit–receive-interactive Strategy
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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