Accession Number:

ADA191159

Title:

WAVFLD: A Program to Compute Ionospheric Height Gain Functions and Field Strengths at VLF.

Descriptive Note:

Interim rept. Oct 86-Sep 87,

Corporate Author:

NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA

Personal Author(s):

• Ferguson, J. A.
• Hitney, L. R.

Report Date:

1987-11-01

Pagination or Media Count:

74.0

Abstract:

Implementation of a full-wave fields program developed for calculations at ELF is described. The program incorporates modifications to the original code for use at VLF, including allowance for multiple modes. Other changes relate to improving compatibility of the basic program setup with that of other programs in the Defense Nuclear Agency repertoire. Keywords Atmosphere modeling, Radio propagation, Extremely low frequency, Ionospheric profile, and Very low frequency.

Descriptors:

• *IONOSPHERIC PROPAGATION
• ATMOSPHERE MODELS
• ELECTROMAGNETIC WAVE PROPAGATION
• EXTREMELY LOW FREQUENCY
• FIELD INTENSITY
• FULL WAVE RECTIFIERS
• GAIN
• HEIGHT
• IONOSPHERE
• RADIO TRANSMISSION
• VERY LOW FREQUENCY
• FORTRAN
• COMPUTER PROGRAMS
• COMPUTERIZED SIMULATION
• MATHEMATICAL MODELS
• ATMOSPHERE MODELS
• ELECTROMAGNETIC WAVE PROPAGATION
• EXTREMELY LOW FREQUENCY
• FIELD INTENSITY
• FULL WAVE RECTIFIERS
• FUNCTIONS
• GAIN
• HEIGHT
• IONOSPHERE
• RADIO TRANSMISSION
• VERY LOW FREQUENCY

Subject Categories:

• Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE