Geomonitor. Digital Real Time Processor for Geophysical Data.
Abstract
The Geomonitor was developed to process in real time digital ionograms from the Digisonde 128 and to digitize, format and record 15 geophysical observables: three components of the geomagnetic field, two riometer channels, two scintillation channels (amplitudes from two beacon satellites signals), two polarimeter channels (quadrature phases from one satellite signal), plus six other variables. The processed data are stored on magnetic tape, displayed on a Plasma Display and printed on one electrostatic and five mechanical printers. The ionogram processing extracts and retains only the most significant echo information for each transmitted frequency: amplitude and virtual height of up to six echoes, echo spread, background noise and receiver gain. A built-in algorithm permits to reconstitute ionograms from the collated data and display them on the Plasma Display to verify proper operation of the Geomonitor. Mechanical printers present the ionospheric characteristics: ftE, ftF, h'min for vertical and backscatter ionograms. The Geomonitor is operating at the AFGL Goose Bay Ionospheric Observatory. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1976
- Accession Number
- ADA040036
Entities
People
- B. W. Reinisch
- Sheryl Smith