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R&D GPS-Receiver

Dual frequency GPS-Receiver

Dual frequency GPS-Receiver

The center for Research & Development of VBIT has gone into collaboration with National Atmospheric Research Laboratory (NARL), Gadanki to have a collaborative study on ionospheric delay of satellite signals measured by GPS receiver. The study will be conducted by R & D center and ECE department of VBIT.

A dual frequency receiver which operates in L1 and L2 bands (1.2 to 1.5 GHz frequency) with GPS antenna designed to operate at the required frequencies have been installed by NARL for campaign mode operation. The receiver records distance between satellite and the center, which gives the estimation of ionospheric delay. The total electron content (TEC) can be computed from the delay. Water vapor content of the troposphere will also be estimated using the data. The total delay of GPS signal will be estimated.

The studies will help identifications of factors that delineate between freshly generated and drifting-fossil bubbles in a given longitude sector and also provide ionospheric drifts required for modeling studies. It will also provide inputs applicability for GPS-Aided Geo Augmented Navigation (GAGAN) and satellite based navigation in India.

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