Extraction of characteristic points from a radar image

The article presents the concept of an automatic radar navigation system, focusing on the system component responsible for extracting characteristic points present in a radar image. A point extraction algorithm is presented, and the results of experiments aimed at verifying its effectiveness are shown.1. INTRODUCTION
In recent years, positioning in navigation has been dominated by satellite systems, especially GPS. These systems are used at sea (marine navigation), in the air (air navigation), and on land (land navigation).
However, relying solely on satellite systems carries the risk of a sudden loss of navigation information in the event of a system failure, shutdown, or potential jamming or encryption of the signal reaching the user. This creates a need for another autonomous system (independent of external information sources) that enables automatic position determination.
This need is particularly relevant for Navy vessels, which should be able to perform their assigned tasks even in situations where access to navigation information, normally obtained from GPS or other global radionavigation systems, is unavailable.
The article presents the concept of an Automatic Radar Navigation System (ARNS), which can serve as an alternative to the GPS system in cases where the use of the latter is impossible for any reason. In addition to the concept of the entire system, a detailed operating algorithm of one of the subsystems is also presented (…)

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