Abstract:
A radiosonde is a meteorological instrument which, launched under a balloon,
measures parameters such as pressure, temperature, humidity and wind (direction,
velocity) in the atmosphere and transmits data to the ground station for further
processing related to weather forecasting. This device is one time use since it is
carried by the balloon that explodes at high altitude (20 Km high). Egyptian
Meteorological Authority (EMA) is one of the main users and consumers of
radiosonde devices.
The proposed system as part of this research aims to overcome the current
imported system drawbacks and weaknesses, improve performance and features,
along with the economic and social benefits from the designing and implementing this
device to serve and satisfy our national and regional needs. Thus, the main objective
is designing and implementation of The Radiosonde Transmitter Device along with
the ground station nationally in competitive cost compared to current imported
systems.
The main functions and algorithms of the proposed system are achieved based
on GPS principle that is a high quality measurement technique that is suitable for
operational sounding applications specifically in Atmospheric pressure, Wind speed
and Wind direction measurements.
