Analysis of the effects of ionospheric sampling of reflection points near-path for high-frequency single-site-location direction finding systems
Teixeira Filho, Carlos Augusto
Adler, Richard W.
Jauregui, Stephen, Jr.
MetadataShow full item record
This thesis suggests a method to estimate the current value of an ionospheric parameter. The proposed method is based on the known variability of the observed current values near path and utilizes data derived from ionospheric sampling measurements. Analysis of errors is provided in Single-Site-Location High-Frequency Direction Finding (SSL-HFDF), arising from ionospheric irregularities such as Es (sporadic E), ionospheric tilts, and traveling ionospheric disturbances (TIDs). The characteristics of Es, tilts and TIDs for mid-latitudes are summarized in tables. The spatial and temporal coherence of ionospheric variabilities and irregularities is analyzed over the electron density. Practical results, measurements, and studies are presented on SSL-HFDF. A survey of characteristics of the ionosphere in the equatorial region is also provided. Finally, some recommendations are given to maximize the applicability of the proposed method.
Approved for public release; distribution is unlimited.
Showing items related by title, author, creator and subject.
The design and evaluation of transmit and receive antennas for an ionospheric communications probe system: A. Multiband Dipole Antenna Perros, Sotirios Georgios (Monterey, California. Naval Postgraduate School, 1992-12);This thesis reports the design, performance evaluation and construction of a transmitting antenna for an HF communications probe system. A short range ionospheric communication link between Monterey, CA, (transmit site) ...
Adler, Richard W.; Rahe, George A. (1974-08);The effect of sea surface conditions on the performance on antennas in VLF, HF and VHF shipboard communications is addressed. In the VLF range, towed buoyant cables are examined. The equations of force are derived ...
Gates, Mark A. (Monterey, California. Naval Postgraduate School, 1992-03);This thesis is a study of the survivability and reliability issues associated with operating meteor burst communication systems under adverse conditions. Meteor burst communication relies on the phenomenon of reflecting ...