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CLC number: TH77

On-line Access: 2010-06-02

Received: 2009-06-15

Revision Accepted: 2010-04-15

Crosschecked: 2010-05-07

Cited: 3

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Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE C 2010 Vol.11 No.6 P.476-480

http://doi.org/10.1631/jzus.C0910353


A new scheme of coded ultrasound using Golay codes


Author(s):  Cheng Jin, Si-ping Chen, Zheng-di Qin, Tian-fu Wang

Affiliation(s):  School of Medicine, Shenzhen University, Shenzhen 518060, China, School of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   jincheng@szu.edu.cn, chensiping@szu.edu.cn

Key Words:  Coded ultrasound, Golay codes, Tissue motion, Ultrasonic imaging


Cheng Jin, Si-ping Chen, Zheng-di Qin, Tian-fu Wang. A new scheme of coded ultrasound using Golay codes[J]. Journal of Zhejiang University Science C, 2010, 11(6): 476-480.

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DOI - 10.1631/jzus.C0910353


Abstract: 
golay codes are the most practical code in coded ultrasound imaging systems. But the trade-off for perfect range sidelobe cancellation is the requirement for two firings, thus resulting in motion-dependent decoding errors. In view of this, we propose a new scheme using the simultaneous emission of code pairs. The code pair is allocated to different elements of an aperture and transmitted simultaneously. The process of separating the code pair from the echo received is based on the orthogonality of the code pair. At last the autocorrelation functions of the individual golay codes are added together. The simultaneous emission of code pairs instead of two firings recovers the frame rate loss, and eliminates the motion-dependent decoding error. Our theoretical analysis and simulations show that the scheme can be used to eliminate the tissue motion effects.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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