HR: 0800h
AN: SA21A-04    [Abstracts]
TI: First Observations of Equatorial TEC and Scintillation With Multiple Dual-Frequency Software-Defined GPS Receivers
AU: * O'Hanlon, B
EM: bwo1@cornell.edu
AF: School of Electrical and Computer Engineering, Cornell University, Ithaca, NY 14853, United States
AU: Kintner, P M
EM: pmk1@cornell.edu
AF: School of Electrical and Computer Engineering, Cornell University, Ithaca, NY 14853, United States
AU: de Paula, E R
EM: eurico@dae.inpe.br
AF: Divisão de Aeronomia/Ciências Espaciais e Atmosféricas, Instituto Nacional de Pesquisas Espaciais, Sao Jose dos Campos, Brazil
AB: A dual-frequency software-defined GPS receiver has been developed and used for monitoring total electron content (TEC) and observing equatorial ionospheric scintillation. The Cornell University GPS Receiver Implemented on a DSP (GRID) utilizes the GPS L1 C/A and L2 C signals to measure TEC and observe scintillation. The GRID receiver measured TEC and GPS signal amplitude and phase at 10 Hz. Also employed were two similar GPS digital storage receivers (non-real-time) that made the same measurements at 50 Hz. These receivers were arranged in a linear array and utilized in January, 2009 in Natal, Brazil (magnetic latitude 2.42°) to make these observations. Mild scintillation of the L1 C/A and L2 C signals was observed. TEC measurements agreed well with those taken by a collocated GPSV 4004B Scintillation/TEC Monitor. We demonstrate the use of multiple receivers to measure drifts and report on the first fast (10Hz-50Hz) multiple receiver TEC measurements in the equatorial ionosphere.
DE: 2415 Equatorial ionosphere
DE: 2439 Ionospheric irregularities
DE: 2494 Instruments and techniques
SC: SPA: Aeronomy [SA]
MN: 2009 Joint Assembly