Position fixing based on radar observations is characterized by autonomy. All data and parameters required to obtain a position are contained within the radar image. Automating the radar navigation process requires digital processing and manipulation of this image. Advances in signal processing technology enable this task to be performed and also allow for the automation of the entire process. The article presents a proposal (in the form of a computer application) for automating the position fixing process using radar images.The radar image of a coastal zone can be used to determine an observed position. This is done in two ways. The first is the classic approach to the position fixing task, which involves determining the position based on observations of bearings and distances to identified objects seen on the radar. The accuracy of the position will depend on the correctness of object identification as well as the accuracy of parameter reading and the stable operation of the radar. The second method, which is somewhat more complex, involves analyzing the entire image and comparing it with a reference image (a map or reference radar images). Implementing this project utilizes so-called (…)
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Source: Logistyka Magazine
Automating the position fixing process in radar navigation – an application – PDF file for download