A need to calibrate indicator for high frequency direction finding  systems
By:  Ioannis Partsalidis
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1994
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 58
Description: This thesis proposes and investigates a new approach in attacking the need to calibrate problem of the shipboard HFDF systems. It is based on measuring the system response to multiple onboard near-field sources. The test is performed along with the standard calibration, and the antenna responses to the near-field sources are stored in a reference database. Whenever a modification is made to the topside, the near-field test is repeated and the new results are compared to the near-field reference database. A significant difference may indicate a need to perform a full system calibration. The calibration procedure was simulated using the numerical electromagnetics code PATCH. Calculations show that the antenna responses are comparable when topside changes were introduced.
Notes: Thesis advisor(s): David C. Jenn, Jeffrey B. Knorr.

"September 1994."

Thesis (M.S. in Systems Engineering (Electronic Warfare)) Naval Postgraduate School, September 1994.

Includes bibliographical references.

Approved for public release; distribution unlimited.

Also available online.

Mode of access: World Wide Web.

System requirements: Adobe Acrobat Reader.

Hellenic Navy author.