摘要
海底管道具有掩埋、出露、悬空三种空间状态。在浅地层剖面图上,海底管道具有较强能量的弯月形绕射特征。但管道空间状态不同,其反射特征也不同。另外,施工中会产生涌浪、船舶噪音等干扰波,这些干扰波叠加在浅地层剖面上,影响对管道反射的识别。较详细叙述了不同空间状态的管道在浅地层剖面图上的反射特征和干扰波特征,以便在海底管道检测中更好地识别管道反射,提高解释精度。
There are three spatial statements for pipeline in the seabed：buried,exposed or impending.On the sub-bottom profiling,the pipeline＇s reflection has strong diffraction which shows ＂Crescent-shaped＂.But the diffraction characteristics are different when the pipeline spatial statement is different.When data is acquired,there are some noises and interference,for example,swells,the ship noise and so on.These noises could reduce the quality of the pipeline reflection.This paper describes reflective characteristics of the pipeline in different spatial statements and the interference waves.
出处
《海洋测绘》
2010年第5期56-58,共3页
Hydrographic Surveying and Charting
关键词
海底管道
浅地层剖面测量
反射特征
干扰波
the seabed pipeline
sub-bottom profiling
characteristics of reflection
characteristics of interference
