scholarly journals On data processing in seismic interferometry focusing on amplitude of cross correlation function

2012 ◽  
Vol 65 (4) ◽  
pp. 237-250 ◽  
Author(s):  
Kosuke Chimoto ◽  
Hiroaki Yamanaka
Keyword(s):  
Correlation Function ◽  
Data Processing ◽  
Cross Correlation ◽  
Cross Correlation Function ◽  
Seismic Interferometry

Optical Tomography: Real–Time Velocity Profile Measurement Using Pixel–To–Pixel Velocity Method

2012 ◽  
Author(s):  
Yusri Yunos ◽  
Pang Jon Fea ◽  
Ruzairi Abdul Rahim ◽  
Chan Kok San ◽  
Nor Muzakkir Nor Ayob ◽  
...  
Keyword(s):  
Correlation Function ◽  
Velocity Profile ◽  
Data Processing ◽  
Distribution System ◽  
Cross Correlation ◽  
Optical Tomography ◽  
Data Distribution ◽  
Cross Correlation Function ◽  
Profile Measurement ◽  
Processing Unit

Fungsi korelasi–rentas kebiasaannya memerlukan masa pengiraan berkomputer yg panjang, maka ia agak sukar untuk menghasil profil halaju dalam masa yang singkat terutama sekali dalam mod masa-nyata. Oleh itu, system pengagihan data dibangunkan dengan menggunakan unit pemprosesan data berganda dan konsep unit pemprosesan data selari untuk mempercepatkan proses penghasilan profil halaju. Penulisan ini juga membentangkan konfigurasi system pemprosesan data yang baru dan bagaimana ia beleh menggantikan unit pemprosesan tunggal untuk mengira profil halaju dengan lebih pantas. Kata kunci: Profil halaju; fungsi korelasi–rentas; sistem pengagihan data The cross–correlation function usually takes a long computation time, so it is quite hard to produce a velocity profile in a short time especially in online mode. Thus, data distribution system is developed by using multiple data processing units and concept of parallel data processing to speed up the process of producing velocity profile. This paper also presents the configuration of new data processing system and how it can replace single processing unit to compute velocity profile faster. Key words: Velocity profile; cross–correlation function; data distribution system

Measurement of the Spatial Cross-Correlation Function of Damped Lyα Systems and Lyman Break Galaxies

2005 ◽  
Vol 636 (1) ◽  
pp. L9-L12 ◽  
Author(s):  
Jeff Cooke ◽  
Arthur M. Wolfe ◽  
Eric Gawiser ◽  
Jason X. Prochaska
Keyword(s):  
Correlation Function ◽  
Cross Correlation ◽  
Cross Correlation Function ◽  
Lyman Break Galaxies

scholarly journals New Orthogonal Small Set Kasami Code Sequence

2015 ◽  
Vol 14 (1) ◽  
Author(s):  
I Nyoman Pramaita ◽  
I G.A.G.K. Diafari ◽  
DNKP Negara ◽  
Agus Dharma
Keyword(s):  
Correlation Function ◽  
Cross Correlation ◽  
Code Sequence ◽  
Cross Correlation Function ◽  
Auto Correlation ◽  
M Sequence ◽  
Auto Correlation Function ◽  
Small Set

In this paper, the authors propose the design of a new orthogonal small set Kasami code sequence generated using combination of non-orthogonal m-sequence and small set Kasami code sequence. The authors demonstrate that the proposed code sequence has comparable auto-correlation function (ACF), cross- correlation function (CCF), peak cross-correlation values with that of the existing orthogonal small set Kasami code sequence. Though the proposed code sequence has less code sequence sets than that of the existing orthogonal small set Kasami code sequence, the proposed code sequence possesses one more numbers of members in each code sequence set. The members of the same code set of the proposed code sequence are orthogonal to each other.

Sign in / Sign up

Export Citation Format

Share Document