Naval Postgraduate School
Dudley Knox Library
NPS Dudley Knox Library
View Item 
  •   Calhoun Home
  • Theses and Dissertations
  • 1. Thesis and Dissertation Collection, all items
  • View Item
  •   Calhoun Home
  • Theses and Dissertations
  • 1. Thesis and Dissertation Collection, all items
  • View Item
  • How to search in Calhoun
  • My Accounts
  • Ask a Librarian
JavaScript is disabled for your browser. Some features of this site may not work without it.

Browse

All of CalhounCollectionsThis Collection

My Account

LoginRegister

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

Receiver operating characteristic curves for linear arrays of vector sensors using nonlinear cardynull processing

Thumbnail
Download
Icon11Mar_Tassia.pdf (2.493Mb)
Download Record
Download to EndNote/RefMan (RIS)
Download to BibTex
Author
Tassia, David.
Date
2011-03
Advisor
Smith, Kevin B.
Meier, Lewis
Metadata
Show full item record
Abstract
During the past decade researchers have been considering vector sensors for use in linear towed arrays for passive target detection. Linear processing is often used due to its simplicity and significant directivity improvements. Nonlinear processing holds the potential for further directivity improvements; however, it also presents the risk of amplifying uncorrelated noise. This thesis simulated a correlated signal in uncorrelated noise to investigate the potential of a nonlinear (but non-adaptive) processing technique. It demonstrates that the increased directivity and substantially diminished response from the ambiguous direction is quite beneficial when the signal is located within certain quadrants. It also demonstrates that linear processing is more effective than this nonlinear processor near endfire. In all cases, the signal to noise ratio was high enough to be detectable by basic array gain from multiple sensors. Monte Carlo simulations were completed to generate detection statistics and ROC curves were created to illustrate the relative effectiveness of: pressure-only sensor arrays, linearly processed vector sensor arrays, and nonlinearly processed vector sensor arrays. For a broadside signal in uncorrelated noise, simulations indicate an array with eleven vector sensors can achieve a 3 dB improvement if the nonlinear processing defined in this thesis is utilized instead of linear processing.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
URI
http://hdl.handle.net/10945/5745
Collections
  • 1. Thesis and Dissertation Collection, all items

Related items

Showing items related by title, author, creator and subject.

  • Thumbnail

    Comparison of linear and nonlinear processing with acoustic vector sensors 

    Psaras, Skevos T. (Monterey California. Naval Postgraduate School, 2008-09);
    Towed arrays of vector sensors are currently being employed in a variety of naval applications. The use of acoustic vector sensors, which measure the acoustic pressure and three orthogonal axes of associated particle motion, ...
  • Thumbnail

    Digital Signal Processing Research Program 

    Therrien, Charles; Oppenheim, Alan V.; Baggeroer, Arthur B.; Chandrakasan, Anantha P.; Wornell, Gregory W.; Aliberti, Giovanni; Gold, Bernard; Isabelle, Steven H.; Kschischang, Frank; Nawab, Hamid S.; Preisig, James C.; Weinstein, Ehud; Amirtharajah, Rajeevan; Barron, Richard J.; Beheshti, Soosan; Chan, Albert; Chen, Brian; Draper, Stark; Hadjicostis, Christoforos N.; Laneman, Nicholas J.; Lee, Li; Lopez, Michael J.; Ooi, James M.; Papadopoulos, Haralabos C.; Secor, Matthew J.; Seefeldt, Alan J.; Verbout, Shawn M.; Wage, Kathleen E.; Wang, Alex Che-Wei; Said, Maya R.; Chupp, Darla J.; Zaganjori, Janice M.; Eggen, Trym H.; Ludwig, Jeffrey T.; Sestok, Charles K.; Torres, Wade P. (Monterey, California. Naval Postgraduate School, 1997);
    The field of digital signal processing grew out of the flexibility afforded by the use of digital computers in implementing signal processing algorithms and systems. It has since broadened into the use of a variety of ...
  • Thumbnail

    Buried object detection with seismic sonar in the surf zone 

    Muir, Thomas; Baker, Steven; Gaghan, Frederick; Fitzpatrick, Michael; Sheetz, Kraig (IEEE, 2016);
    The surf zone presents a difficult environment for remote detection of naval mines and military ordnance, which become buried in the sediment as a result of tidal action, currents and other causes. We have investigated ...
NPS Dudley Knox LibraryDUDLEY KNOX LIBRARY
Feedback

411 Dyer Rd. Bldg. 339
Monterey, CA 93943
circdesk@nps.edu
(831) 656-2947
DSN 756-2947

    Federal Depository Library      


Start Your Research

Research Guides
Academic Writing
Ask a Librarian
Copyright at NPS
Graduate Writing Center
How to Cite
Library Liaisons
Research Tools
Thesis Processing Office

Find & Download

Databases List
Articles, Books & More
NPS Theses
NPS Faculty Publications: Calhoun
Journal Titles
Course Reserves

Use the Library

My Accounts
Request Article or Book
Borrow, Renew, Return
Tech Help
Remote Access
Workshops & Tours

For Faculty & Researchers
For International Students
For Alumni

Print, Copy, Scan, Fax
Rooms & Study Spaces
Floor Map
Computers & Software
Adapters, Lockers & More

Collections

NPS Archive: Calhoun
Restricted Resources
Special Collections & Archives
Federal Depository
Homeland Security Digital Library

About

Hours
Library Staff
About Us
Special Exhibits
Policies
Our Affiliates
Visit Us

NPS-Licensed Resources—Terms & Conditions
Copyright Notice

Naval Postgraduate School

Naval Postgraduate School
1 University Circle, Monterey, CA 93943
Driving Directions | Campus Map

This is an official U.S. Navy Website |  Please read our Privacy Policy Notice  |  FOIA |  Section 508 |  No FEAR Act |  Whistleblower Protection |  Copyright and Accessibility |  Contact Webmaster

Export search results

The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

A logged-in user can export up to 15000 items. If you're not logged in, you can export no more than 500 items.

To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.