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Abstract
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One of the problems facing engineers is determining the direction of the wind and its speed near the shores and in the sea and oceans. This is very important for the movement of ships and boats.
There are several methods to determine this direction: One of these methods is the use of scatterometer satellites. The task of this satellite is to determine the direction from the surface of the seas and oceans. This device can determine the direction using two antennas. But there are two main problems in determining the direction using this method:
1. No direction in all places
2. Low accuracy
This satellite can not have good imaging at scales of less than 10 km, which is one of the main problems of this communication device, and also the scattering satellites near the shores can not have good accuracy and provide good images.
For this reason, star satellites are used to determine the speed and direction of the wind.
The function of this satellite is to capture images from different parts of the sea and oceans, and then based on those images, directions and speeds are detected. From the images obtained from the head, the direction can be recognized in different ways
However, the use of Sarham satellites for imaging has problems, including:
1. Angular imaging by satellite
2. Difficulty shooting near shores due to drought
3. Estimate the sea wavelength
1. Star satellites are imaged at an angle, which has been one of the problems ahead. For this reason, to determine the direction, the threshold level image must be defined locally. But in determining the direction of the wind, it is necessary to act in general, because the direction is always continuous, and if it is determined locally, the direction will not be estimated correctly. Of course, this generality of determining the direction of the wind also sometimes causes problems, such as a sudden change in the direction of the wind due to the presence of an island or strong tornadoes.
2. Near the shores, due to the dryness,
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