Monterey, California ; Naval Postgraduate School
An investigation of factors which degrade phase accuracy in a VLF relative navigation system
Abstract
dc:description.abstractA VLF relative navigation system makes use of the fact that, at any given point on the earth, phase delay of a received VLF signal is highly stable and predictable. As the receiver is physically moved, phase delay changes linearly with distance from the transmitting station, so that by keeping track of the phase delay of the received signal from several VLF stations, one may keep an accurate plot of geographical position. Two problems experienced in measuring phase delay are the diurnal shift and long path interference. An investigation is made into a method of predicting the diurnal phase shift and the resultant phase due to simultaneous reception of long and short path signals. Also investigated is a receiving antenna having a cardioid shaped radiation pattern which could provide discrimination against long path signals.
Degree
thesis:*- Grantor dc:publisher
- Monterey, California ; Naval Postgraduate School
- Year dc:date.issued
- 1966
Author and committee
dc:creator, dc:contributor.*- Authors dc:creator
-
- McKay, John Douglas.
- Preston, Gerry Lee.
- Advisor dc:contributor.advisor
-
- Menneken, C.E.
Rights
dc:rights- Statement dc: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.
- Language dc:language.iso
- en_US
Identifiers
dc:identifier.*- Handle dc:identifier.uri
- https://hdl.handle.net/10945/9550
- OAI identifier oai:identifier
- oai:calhoun.nps.edu:10945/9550