Title :
Polar ionospheric disturbance effects on NNSS satellite positioning
Author :
Ogawa, Tadahiko ; Maeno, Hideo ; Igarashi, Kiyoshi ; Aikyo, Kazuhiro
Author_Institution :
Radio Res. Lab., Tokyo, Japan
fDate :
7/1/1988 12:00:00 AM
Abstract :
From the analysis of the United States Navy navigation satellite system (NNSS) positioning data of about 10000 passes, it is clearly found that polar ionospheric disturbance affects the positioning. The positioning error increases with increasing geomagnetic disturbance level (local K-index), and the pass number of position fixes decreases by one or two per day when the K-index is large. These effects may arise from the spatial gradients of electron density and/or the radio wave scattering due to well-developed ionospheric irregularities inherent to the disturbed auroral ionosphere.<>
Keywords :
artificial satellites; electron density; ionospheric electromagnetic wave propagation; position control; radiowave propagation; NNSS satellite positioning; United States Navy navigation satellite system; disturbed auroral ionosphere; geomagnetic disturbance level; ionospheric irregularities; local K-index; plasma; polar ionospheric disturbance; positioning error; radio wave scattering; spatial gradients of electron density; Antarctica; Artificial satellites; Electrons; Geomagnetism; Ionosphere; Laboratories; Receiving antennas; Satellite broadcasting; Satellite navigation systems; Scattering;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
