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The Compression of AIS Message Data

Author: BiYueZuo
Tutor: JiangYouFu
School: Zhejiang Ocean University,
Course: Of Agricultural Information
Keywords: AIS messages data compression packet decoding Information Processing
CLC: U675.7
Type: Master's thesis
Year: 2014
Downloads: 9
Quote: 0
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Abstract


With the continuous development of mandatory installation of modern shippingindustry as well as AIS Automatic Identification System, the maritime system needs toreceive and storage the real-time AIS data, in order to playback the historical of trackmovement and sailed status. However, the amount of uncompressed data processing willbe unusually large,not only the hardware storage costs will rise, but also have an impact onquery performance, combined with AIS integrated portable device is in development, aswell as the trend of big data compression, so,setting local storage units,optimize themassive data is in need. how to ensure the compression effect as much as possible whilekeeping the data integrity an important issue of AIS that how to ensuring the compressioneffect and keeping the data integrity.Therefore, this paper will analysis AIS data first, optimize AIS information process,the degree of adaptation to different algorithms analyze data precision, improved datacompression algorithm used for data compression of approximately less, compared withthe original data size, completed the study purpose.

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CLC: > Transportation > Waterway transport > Marine Engineering > Ship sailing school > Ship navigation and communication
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