DocumentCode :
2703299
Title :
Array gain analysis of uniform circular array mounted on a cylinder
Author :
Liu, Tielin ; Zhang, Cheng ; Shi, Quan ; Zhao, Xiang
Author_Institution :
6th Dept., Shijiazhuang Mech. Eng. Coll., Shijiazhuang, China
fYear :
2012
fDate :
15-18 June 2012
Firstpage :
1485
Lastpage :
1488
Abstract :
The array gain and array supergain of a uniform circular array (UCA) under different circumstances is studied based on the array model of a UCA mounted on a cylinder. The algebraic expressions of the array gain and array supergain are derived. The variety of the array gain and array supergain under different circumstances is compared by computer simulations. Simulation results demonstrate that the cylinder can improve the array gain and array supergain. When the UCA mounted on an air-coupled cylinder, the array gain and array supergain can be improved further in special frequency band by setting the impedance properly. The offset between the array and the cylinder can reduce the array gain to a certain extent.
Keywords :
array signal processing; UCA model; air-coupled cylinder; array gain analysis; array signal processing; array supergain; computer simulations; frequency band; uniform circular array model; Acoustics; Arrays; Covariance matrix; Impedance; Signal to noise ratio; array gain; array signal processing; supergain; uniform circular array (UCA);
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Quality, Reliability, Risk, Maintenance, and Safety Engineering (ICQR2MSE), 2012 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-0786-4
Type :
conf
DOI :
10.1109/ICQR2MSE.2012.6246506
Filename :
6246506
Link To Document :
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