According to the characteristic of shaft-rate electric field of ships, the recognition and classification methods of ship targets based on wavelet transform and neural network were proposed.

根据舰船轴频电场信号的特点，提出了基于小波变换和神经网络的目标识别和分类方法。

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Companies operating the cargo ships are required to be audited by the recognised classification society ISM auditor, the department has participated in all such audits.

所有货船营运公司都需接受审核，由认可船级社的国际安全管理审核人员负责，海事处参与了这些货船营运公司审核。

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Survey and Registration for Classification of Ships and Installations.

调查和注册的船舶和设施分类。

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