光通信研究
光通信研究
광통신연구
Study on Optical Communications
2015年
5期
32-34,58
,共4页
安全监测%光纤光栅水听器%声场%被动声呐定位
安全鑑測%光纖光柵水聽器%聲場%被動聲吶定位
안전감측%광섬광책수은기%성장%피동성눌정위
safety monitoring%fiber grating hydrophone%acoustic field%passive sonar localization
提出了在海缆中嵌入光纤光栅水听器监测海缆附近的拖锚情况,实现在海缆受损前采取措施的安全预警方法;分析了声源特性,并基于台湾海峡建立声场模型,对 TL(声传播损失)进行了仿真。仿真结果表明,当各水听器间的距离为500 m时,该方法可以确定海底光缆沿线约1 km 范围内声源的位置。
提齣瞭在海纜中嵌入光纖光柵水聽器鑑測海纜附近的拖錨情況,實現在海纜受損前採取措施的安全預警方法;分析瞭聲源特性,併基于檯灣海峽建立聲場模型,對 TL(聲傳播損失)進行瞭倣真。倣真結果錶明,噹各水聽器間的距離為500 m時,該方法可以確定海底光纜沿線約1 km 範圍內聲源的位置。
제출료재해람중감입광섬광책수은기감측해람부근적타묘정황,실현재해람수손전채취조시적안전예경방법;분석료성원특성,병기우태만해협건립성장모형,대 TL(성전파손실)진행료방진。방진결과표명,당각수은기간적거리위500 m시,해방법가이학정해저광람연선약1 km 범위내성원적위치。
This paper presents a new security precaution measure for submarine fiber cables,i.e.embedding fiber grating hy-drophones in the cable to monitor anchor dragging in the vicinity of the submarine cables,analyzes the traits of the acoustic sources and builds a acoustic field model on the basis of Taiwan Strait and simulates the acoustic Transmission Loss (TL).The simulation results show that when these hydrophones are spaced 500 m apart,this method can be used to determine the location of the acoustic sources in the scope of about 1 km along the submarine cables.