Abstract
Sea Radar is an important technical measure for protecting national maritime resources and island sovereignty. The calculation of sea target velocity and course is important to monitor and track sea targets for sea radar, for calculation precision is directly related to the tracking effect of sea target. This paper systematically studies the problem on calculation of sea target velocity and course for sea radar, explicates the relevant technical principles, proposes effective algorithms for calculating sea target velocity and course based on multi-frame accumulative information, and gives a corresponding solution suitable for the scenario of sea target maneuvering. Finally, based on comparison analysis of real radar data and Automatic Identification System (AIS) data, we verify the precision of our algorithms.
Highlights
Sea area monitoring is an important measure to protect national maritime resources and island sovereignty
From the perspective of engineering applications for sea target tracking in sea radar, this paper studies the velocity and course calculation algorithms even suitable for sea target maneuvering scenario and utilizes radar and Automatic Identification System (AIS) equipment to collect data for comparison analysis to verify the corresponding velocity and course calculation precision of our proposed algorithms
The precision of the velocity and course calculation is directly related to the tracking of sea target, which affects the precision of the range and azimuth detection
Summary
Sea area monitoring is an important measure to protect national maritime resources and island sovereignty. Blunt et al [1] design a heuristic approach, which performs well when applied to real measured sea clutter for slow target detection. If the velocity and course of sea target is not accurately calculated, it will result in a large deviation between the target's prediction position and its real detection position, causing the target tracking process to be unstable or to lose its follow-up. The precision of the calculation of the velocity and course during the tracking of sea target plays a decisive role. Yuan et al [6] have studied and introduced the relevant concepts of sea target velocity and course solution, real value acquisition and evaluation methods, but there is a certain gap from the actual engineering application. From the perspective of engineering applications for sea target tracking in sea radar, this paper studies the velocity and course calculation algorithms even suitable for sea target maneuvering scenario and utilizes radar and AIS equipment to collect data for comparison analysis to verify the corresponding velocity and course calculation precision of our proposed algorithms
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