A carrier bearing angle calculation method and system
By extracting the controlled motion trend components of the carrier through EMD decomposition and mirror expansion methods, the high-frequency disturbance problem of the carrier's trajectory angle is solved, and the stability and energy efficiency of the control system are improved.
CN116858238BActive Publication Date: 2026-05-15BEIJING AUTOMATION CONTROL EQUIP INST
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Patent Information
- Application Number
- CN202310729191.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-19
- Publication Date
- 2026-05-15
- Estimated Expiration
- 2043-06-19
AI Technical Summary
Technical Problem
During navigation, the carrier is affected by factors such as ocean currents, waves and wind, which causes high-frequency disturbances and instability in the track angle, affecting the stability of the control system and energy consumption.
Method used
The Empirical Mode Decomposition (EMD) method is used to decompose the carrier's motion trajectory, extract the actual controlled motion trend components, and predict future trajectory data through mirror extension to calculate the carrier's track angle.
Benefits of technology
It effectively suppresses high-frequency disturbances, reduces energy consumption caused by frequent control operations, and improves the stability and real-time performance of the control system.
✦ Generated by Eureka AI based on patent content.
Abstract
The application provides a carrier track angle calculation method and system, which comprises the following steps: calculating a carrier sailing track equation, converting the carrier sailing track equation into a spatial orthogonal parameter equation, and obtaining track data of different orthogonal directions with time as a parameter; setting a time window for the track data of each direction, and predicting track data in a future certain time by using a mirror image extension method; performing EMD decomposition on the track data of each direction in the time window and the mirror image extension interval, and obtaining an average trend component; and calculating a carrier track angle according to the average trend component. The EMD decomposition of the carrier motion track can inhibit the interference of high-frequency disturbance on the carrier, significantly reduce the additional energy consumption caused by frequent control, and improve the control quality of the system.
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