First application of the radioholographic method to wave observations in the upper atmosphere

摘要: [1] Wave phenomena in the upper atmosphere can be studied using high-precision Global Positioning System (GPS) radio navigational field. In this paper, basic principles, accuracy, and vertical resolution of radioholographic technique for studies ionospheric wave are presented general case when orbits satellites arbitrary. Results testing method discussed orbital station MIR geostationary (MIR/GEO) GPS/Meteorology (GPS/MET) occultation data. The has high (12–30 m) angular (4–8 μrad) resolution, which been validated by directly observing multibeam propagation revealing signals, reflected from sea, GPS/MET MIR/GEO We show that allows one to determine profile electron density monitoring structures atmosphere. As an example approach, observations summer Antarctic mesosphere on 7 February 1997 presented. show, combining phase amplitude analysis, a 0.3–0.5 km reveals wavelike with spatial periods 1–2 8–10 distribution D E regions. Variations gradient ±5 × 103 ±8 el/(cm3 km) at altitudes 72–95 were observed. obtained results demonstrate high-technology level radioholography approach open new perspectives experiments: measurements characteristics natural processes atmosphere, mesosphere, ionosphere state sea surface measuring parameters signal simultaneously experiments.