NDLI: On the Distribution of Velocity Measurements From Pulse-to-Pulse Coherent Doppler Sonar

Content Provider	IEEE Xplore Digital Library
Author	Dillon, J. Zedel, L. Hay, A.E.
Copyright Year	1976
Abstract	Knowledge of the velocity measurement distribution is useful for designing new coherent Doppler systems, for resolving velocity ambiguity, and for optimally combining measurements from multiple receivers and multiple carrier frequencies. In this paper, the effects of pulse-pair averaging and pulse-to-pulse autocorrelation are analyzed for ensembles consisting of up to ten pulse pairs. A formula is presented for the probability distribution of velocity measurements from a single pulse pair. This distribution is nonnormal for all values of the autocorrelation coefficient. In the limit of perfect pulse-to-pulse correlation, single pulse-pair measurements obey a Pearson Type VII distribution which has a higher peak and broader tails than a normal distribution. Second and fourth moments of the multiple pulse-pair measurement distributions are evaluated using a Monte Carlo method. The applicability of perturbation analysis for predicting velocity standard deviation is investigated. In the analysis of Zrnić (1977), it is assumed that perturbations in autocorrelation phase are small compared to the mean phase. Three prediction failure mechanisms are demonstrated through changes in the distribution of the complex autocorrelation coefficient; these occur for both high and low autocorrelation magnitude, and for short ensemble lengths. Measurement distributions from the Monte Carlo method are also used to determine the autocorrelation magnitude necessary to resolve velocity ambiguity using a dual-frequency coherent Doppler sonar. Simulations with a high-fidelity coherent Doppler sonar model show how the distribution of velocity measurements is affected by finite particle concentrations. While velocity standard deviation is insensitive to concentration above a threshold of approximately 1 particle per sample volume, kurtosis exhibits a strong dependence on concentration in the range of 0.1-5 particles per sample volume.
Sponsorship	IEEE Oceanic Engineering Society
Starting Page	613
Ending Page	625
Page Count	13
File Size	2403160
File Format	PDF
ISSN	03649059
Volume Number	37
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Doppler measurements Velocity measurement Monte Carlo methods Probability Sonar Sea measurements velocity Ambiguity concentration Doppler kurtosis Monte Carlo phase probability sonar
Content Type	Text
Resource Type	Article
Subject	Ocean Engineering Mechanical Engineering 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

Resolving Velocity Ambiguity in Multifrequency, Pulse-to-Pulse Coherent Doppler Sonar

Asymptotic performance of a pulse-to-pulse incoherent Doppler sonar in an oceanic environment

A three-component bistatic coherent Doppler velocity profiler: error sensitivity and system accuracy

Parametric array Doppler sonar

Self-contained acoustics platforms for probing ocean surface processes

Transmit-Signal Design and Processing Strategies for Sonar Target Phase Measurement

The feasibility of Doppler sonar fish counting

Predetection Fusion With Doppler Measurements and Amplitude Information

Quantitative seafloor characterization using a bathymetric sidescan sonar

On the Distribution of Velocity Measurements From Pulse-to-Pulse Coherent Doppler Sonar

Similar Documents

Resolving Velocity Ambiguity in Multifrequency, Pulse-to-Pulse Coherent Doppler Sonar

Asymptotic performance of a pulse-to-pulse incoherent Doppler sonar in an oceanic environment

A three-component bistatic coherent Doppler velocity profiler: error sensitivity and system accuracy

Parametric array Doppler sonar

Self-contained acoustics platforms for probing ocean surface processes

Transmit-Signal Design and Processing Strategies for Sonar Target Phase Measurement

The feasibility of Doppler sonar fish counting

Predetection Fusion With Doppler Measurements and Amplitude Information

Quantitative seafloor characterization using a bathymetric sidescan sonar

On the Distribution of Velocity Measurements From Pulse-to-Pulse Coherent Doppler Sonar