NDLI: Clutter-suppressing performance estimation methods of active sonar waveform based on reverberation statistical models in littoral environment

Content Provider	IET Digital Library
Author	Zhang, Chi Ma, Xiaochuan Wu, Yongqing Jiang, Li Zhan, Fei Zhang, Shuhao
Abstract	Detecting low-speed quiet targets such as divers and underwater-unmanned-vehicles in littoral environment by using active sonar is becoming increasingly attractive. When using a Doppler insensitive pulsed linearly frequency modulated signal, the high-level clutters which might arise from underwater physical scatterers will lead to excessive false alarm rates and limit the detection performance. However, Doppler sensitive waveforms such as binary phase shift keying have the capability of filtering clutters and degrading false alarms. Thus, the question how to estimate the clutter-suppressing performance of waveforms is essential for sonar system design. In this study, the clutter-rejecting principle of waveform is theoretically introduced firstly. Then, based on the reverberation statistical features, this study proposes two methods, the Doppler-statistic method and envelope-statistic method, separately, to estimate and evaluate the clutter suppressing performance of waveforms. Finally, the methods are verified by lake experiments. It is proved that the first method has the capacity of calculating the confidence probability of suppressing clutters by a waveform, and through the second method, the clutter rejecting performance of waveforms can be evaluated and verified. The methods can be used for selecting and designing waveforms to reduce false alarms and improve detection performance.
Starting Page	1700
Ending Page	1708
Page Count	9
ISSN	17518784
Volume Number	11
e-ISSN	17518792
Issue Number	Issue 11, Nov (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/11/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2017.0069
Journal	IET Radar, Sonar & Navigation
Publisher Date	2017-08-09
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Active Sonar Waveform Binary Phase Shift Keying Clutter Clutter Filtering Clutter-rejecting Principle Clutter-suppressing Performance Estimation Method Confidence Probability Detection Performance Doppler Insensitive Pulsed Linearly Frequency Modulated Signal Doppler Sensitive Waveforms Doppler Shift Doppler-statistic Method Envelope-statistic Method False Alarm Degradation False Alarm Rates High-level Clutters Littoral Environment Low-speed Quiet Target Detection Object Detection Probability Pulse Frequency Modulation Reverberation Reverberation Statistical Feature Reverberation Statistical Model Signal Detection Sonar And Acoustic Radar Sonar Detection Sonar Signal Processing Sonar System Design Statistical Analysis Statistics Underwater Physical Scatterers
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Clutter map detector for active diver detection sonar

Radar/Sonar Signal Design for Bounded Doppler Shifts

Predicting Sonar False Alarm Rate Inflation Using Acoustic Modeling and a High-Resolution Terrain Model

Fractional Fourier transform-based detection and delay time estimation of moving target in strong reverberation environment

Integrated waveform for continuous active sonar detection and communication

Methods for Identifying and Controlling Sonar Clutter

Comb waveform optimisation with low peak-to-average power ratio via alternating projection

False-Alarm Reduction for Low-Frequency Active Sonar With BPSK Pulses: Experimental Results

Constant false alarm rate detection based on estimating statistical distribution of non-homogeneous sea clutter in sky-wave over-the-horizon radar

Clutter-suppressing performance estimation methods of active sonar waveform based on reverberation statistical models in littoral environment

Similar Documents

Clutter map detector for active diver detection sonar

Radar/Sonar Signal Design for Bounded Doppler Shifts

Predicting Sonar False Alarm Rate Inflation Using Acoustic Modeling and a High-Resolution Terrain Model

Fractional Fourier transform-based detection and delay time estimation of moving target in strong reverberation environment

Integrated waveform for continuous active sonar detection and communication

Methods for Identifying and Controlling Sonar Clutter

Comb waveform optimisation with low peak-to-average power ratio via alternating projection

False-Alarm Reduction for Low-Frequency Active Sonar With BPSK Pulses: Experimental Results

Constant false alarm rate detection based on estimating statistical distribution of non-homogeneous sea clutter in sky-wave over-the-horizon radar

Clutter-suppressing performance estimation methods of active sonar waveform based on reverberation statistical models in littoral environment