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- Title
Short-message communication Lossy data compression algorithm for BeiDou-3 satellite information transmission.
- Authors
Wu, Di; Liu, Sheng; Sun, Hongfang; Zhang, Lanyong
- Abstract
BeiDou-3 satellites have short-message communication capabilities, which are not available in other navigation systems. However, the information transmission capacities of BeiDou-3 satellites are limited, which means that the string length of a single transmission is restricted. To improve transmission performance, this paper proposes a lossy data compression algorithm to transmit ship data. First, due to the large amount of measurement noise in the ship data and the difficulty of adaptively adjusting the compression threshold of the swinging door trend, a dynamic threshold adjustment strategy based on model-free adaptive control is designed. Furthermore, because the performance of the strategy depends on the initial value, chaos multilayer particle swarm optimization is employed to optimize the strategy and achieve better generalization and convergence performance. In addition, this paper introduces an experimental system and uses real ship motor vibration and electromagnetic radiation data to verify the compression algorithm. The experimental results indicate that the proposed algorithm displays reasonable performance. Presently, the system designed in this paper has been operating stably for more than six months.
- Subjects
LOSSY data compression; TELECOMMUNICATION satellites; PARTICLE swarm optimization; DATA compression; DATA transmission systems; ALGORITHMS
- Publication
Multimedia Tools & Applications, 2022, Vol 81, Issue 9, p12833
- ISSN
1380-7501
- Publication type
Article
- DOI
10.1007/s11042-022-12467-1