Calculation and survey of angular motion parameters of ship-mounted antennas in satellite tracking
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https://doi.org/10.54939/1859-1043.j.mst.CAPITI.2024.56-61Keywords:
Look angle; Marine antenna; Antenna pointing; Satellite tracking; Wave and wind effect; Antenna platform; Satellite communication.Abstract
To communicate with satellites, a system of antennas is required to transmit and receive signals to and from registered satellites. The transmission and reception of signals between the antenna and the satellite depends on many factors, such as transmit power, receiver sensitivity, and environment. To achieve the best signal level, the antenna must always be pointed toward the satellite it needs to communicate with. However, the attitude of a ship at sea is constantly affected by factors such as waves and wind, which can affect the antenna's line of sight. This paper presents a method for determining the antenna angles when affected by external factors such as waves and wind, and investigates its angular velocity to provide a basis for the design and manufacture of an antenna platform for satellite tracking. The paper simulates and evaluates the algorithm and presents the antenna platform's angle and angular velocity parameters under conditions where the vehicle's attitude changes within a defined range.
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