Page Header

Ocean environment Noise directivity estimate base

Yu-lu CAO

Abstract


The Ocean environment noise directivity is a base for Background noise inhibition in signal processing. We do | about for Method To the directivityanalyse in ocean Environment noise field and anisotropic token base on single Vector hydrophone . analysed , Relationship between the background Noise directivityand background Noise inhibition Ability by Vector hydrophone . Do experiment in on Method of the level Directivity analyse Base On data a Ocean envir ­ onmentNoise in North yellow Sea By- Vector hydrophone. There are two results that one is level Anisotropy degree differ ­ ence In Ocean Environment Noise field is prominence in difference Frequency, Other ? The inhomogeneity of This Ocean en ­ vironment noise level directivity is prominence In some Special frequency, Whichis the same as Ship distributing .


Keywords


Ocean Environment noise; directivity; anisotropy ; Vector hydrophone

Full Text:

PDF

References


Li Jialiang , Lin Jianheng , , and so on , Noise source inhomogeneous distribution Marine ambient noise level sound Energy Flow Theoretical analysis J], Acoustic

journal ,2014, (6).LI Jia-liang ,LIN Jian-heng ,et al. Theoretical analysis of acoustic energy flux of ocean ambi-ent ,noise caused by nonuniform distributed noise

Sources[j] ,Acta acustica ,2014, (6).

ROSS , DONALD , mechanics ofunder water noise. m:1976.

Cheng Jinfang, He Hisi. principle and application of acoustic vector detection [M]. Beijing : weapons Indus-try publisher ,2015.

R 0 PGNEHK 0 B A , hnb^eb B H , 3axap 0 B ,R. H. Bekt 0 pH 0 - A3 0 Bbie Metogbi b Akyctuke. M:hayka, 1989.

3axap 0 B R H, P Water ebckhh C m. Bekt 0 PH 0 - ① A3 0 Bbie H3mepehua b akyctuqeckhx Nonax. M:AKYCT,1979.

Sun Guiqing, vector hydrophone detection technology nonporous [D]. Harbin : Harbin Engineering Big Learn ,2⑻ Dagger

SUN gui-qing. The study of Detection technolgy based-on the vector hydrophone[d]. Harbin:harbin Engineering Uni-versity Master graduate thesis,2001.

Tao Peng . the cancellation phenomenon and phase characteristics of vector sound field nonpo-rous [D]. Harbin : Hal Riverside Engineering University , 2006.

TAO Peng. The phenomena of counteraction and phase property in the vector sound field[d]. Harbin:harbin Engineer-ing University, 2006.


Refbacks

  • There are currently no refbacks.