Oblique-incidence sounder measurements with absolute propagation delay timing

Technical Report · Thu May 03 04:00:00 EDT 1990

OSTI ID:6193121

Daehler, M

Timing from the Global Position Satellite (GPS) system has been applied to HF oblique incidence sounder measurements to produce ionograms whose propagation delay time scale is absolutely calibrated. Such a calibration is useful for interpreting ionograms in terms of the electron density true-height profile for the ionosphere responsible for the propagation. Use of the time variations in the shape of the electron density profile, in conjunction with an HF propagation model, is expected to provide better near-term (1-24 hour) HF propagation forecasts than are available from current updating systems, which use only the MUF. Such a capability may provide the basis for HF frequency management techniques which are more efficient than current methods. Absolute timing and other techniques applicable to automatic extraction of the electron-density profile from an ionogram will be discussed.

• Research Organization: Naval Research Lab., Washington, DC (United States)
• OSTI ID: 6193121
• Report Number(s): AD-P-006310/7/XAB
• Country of Publication: United States
• Language: English

Related Subjects

661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CALIBRATION
DIMENSIONS
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
ELECTRONIC EQUIPMENT
EQUIPMENT
HEIGHT
IONOSONDES
IONOSPHERE
MATHEMATICAL MODELS
PLANETARY IONOSPHERES
RADIATIONS
RADIO EQUIPMENT
RADIOWAVE RADIATION
SATELLITES
TIME DELAY
VIRTUAL HEIGHT