Automatic Processing of Digital Ionograms and Full Wave Solutions for the Profile Inversion Problem.

Methods for the automatic scaling of Digisonde ionograms are described. Making use of the available ionogram information, i.e., signal amplitude, polarization and incidence angle, the bottomside ionogram scaling algorithm extracts the ordinary echo trace with good accuracy even under very disturbed...

Full description

Bibliographic Details
Main Authors: Reinisch,B W, Moses,H E, Tang,J S
Other Authors: LOWELL UNIV MA CENTER FOR ATMOSPHERIC RESEARCH
Format: Text
Language:English
Published: 1981
Subjects:
Atmospheric Physics
Theoretical Mathematics
Computer Programming and Software
Radiofrequency Wave Propagation
*IONOGRAMS
*SCALING FACTOR
*AUTOMATIC PROGRAMMING
*SCHRODINGER EQUATION
*WAVE EQUATIONS
IONOSONDES
INVERSE SCATTERING
ECHOES
ACCURACY
ALGORITHMS
DIGITAL MAPS
LABRADOR SEA
SIGNALS
AMPLITUDE
POLARIZATION
COMPARISON
Goose Bay
PE62101F
WUAFGL464306AH
Labrador Sea
Online Access:http://www.dtic.mil/docs/citations/ADA115820
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA115820
Description
Summary:Methods for the automatic scaling of Digisonde ionograms are described. Making use of the available ionogram information, i.e., signal amplitude, polarization and incidence angle, the bottomside ionogram scaling algorithm extracts the ordinary echo trace with good accuracy even under very disturbed ionospheric conditions. The automated parameters for some 600 ionograms from Goose Bay, Labrador, were compared with the manually scaled values. For 82% of all ionograms foF2 was scaled within 0.5 MHz, and for 93% within 1 MHz in spite of the frequent occurrence of heavy spread F. New full wave methods for the profile inversion are explored in the second part of this report. Special profiles are investigated for which the full-wave equations can be solved exactly. (Author)

Similar Items