互辐射阻抗对加权指向性的影响及实验研究 -- 西北工业大学学报,2017,35(3):475-479
论文:2017,Vol:35,Issue(3):475-479
引用本文:
李道江, 史文涛. 互辐射阻抗对加权指向性的影响及实验研究[J]. 西北工业大学学报
Li Daojiang, Shi Wentao. Research and Experiments of Mutual Radiation Impedance Effect on Weighted Directivity[J]. Northwestern polytechnical university

互辐射阻抗对加权指向性的影响及实验研究
李道江, 史文涛
西北工业大学 航海学院, 陕西 西安 710072
摘要:
针对水声基阵阵元间存在互辐射阻抗的情况,研究了互辐射阻抗对基阵加权指向性的影响。以互辐射阻抗的形成机理为出发点,将互辐射阻抗引入基阵辐射声场的计算中,修正了基阵加权指向性函数的计算公式,并以超指向性加权为例,进行了计算机仿真与消声水池实验。仿真与实验结果表明:在阵元间距较小、低频时互辐射阻抗会严重影响基阵的加权指向性,所提的修正指向性函数更能反映基阵指向性的真实情况。
关键词:    互辐射阻抗    水声基阵    加权指向性    超指向性    实验研究   
Research and Experiments of Mutual Radiation Impedance Effect on Weighted Directivity
Li Daojiang, Shi Wentao
School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
Abstract:
The effect on directivity of weighted array is investigated for the existence of mutual radiation impedance between underwater acoustic array elements. Based on the acoustic theory the mutual radiation impedance is introduced into the calculation of array radiation sound field, the weighted directivity function is modified, and then computer simulations and anechoic tank experiments are carried out for super directivity array. The results of computer simulations and anechoic tank experiments show that the array directivity is significantly affected at low working frequency in small array distance and the modified directivity function agree with the practical situation better in comparison to the conventional one.
Key words:    mutual radiation impedance    underwater acoustic array    weighted directivity    super directivity    design of experiments   
收稿日期: 2017-03-02     修回日期:
DOI:
基金项目: 中央高校基础研究基金(G2015KY0107)与国家自然科学青年基金(61501374)资助
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作者简介: 李道江(1982-),西北工业大学讲师,主要从事水声换能器与基阵的优化设计研究。
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参考文献:
[1] 刘望生,李亚安,俞宏沛. 宽带密排平面阵声辐射分析[J]. 声学学报,2011,36(4):358-362 Liu Wangsheng, Li Ya'an, Yu Hongpei. Sound Radiation Analysis of Broadband Dense Plane Array[J]. Shengxue Xuebao, 2011, 36(4):358-363(in Chinese)
[2] Lee J, Seo I, Han S M. Radiation Power Estimation for Sonar Transducer Arrays Considering Acoustic Interaction[J]. Sens Actuat, 2001, 90:1-6
[3] 马焕培,贺西平. 弯曲振动矩形板辐射阻抗的计算[J],物理学报,2012,61(19):1-10 Ma Huanpei, He Xiping. Calculation of Radiation Impedance of a Rectangular Plate with Flexural Vibration[J]. Acta Phys Sin, 2012, 61(19):1-10(in Chinese)
[4] Dong Yuhan, Domizioli Carlo P, Hughes Brian L. Effects of Mutual Coupling and Noise Correlation on Downlink Coordinated Beamforming with Limited Feedback[J]. Journal of Advances in Signal Processing, 2009, 2009:1-10
[5] Lee Haksue, Tak Jinhee, Moon Wonkyu. Effects of Mutual Impedance on the Radiation Characteristics of Transducer Arrays[J]. Journal of Acoustical Society of American, 2004, 115(2):666-680
[6] Lee Kunchou, Jhang Jhenyan, Huang Minchih. Performance of Underwater Adaptive Array including Mutual Coupling Effects[J]. Applied Acoustics. 2009, 70(9):190-193
[7] 侯宏,杨建华,李辉. 孙进才. 有源消声系统中的电声阻抗规律及其应用[J]. 西北工业大学学报,2001,19(2):246-250 Hou Hong, Yang Jianhua, Li Hui, Sun Jincai. An Impedance-Based Control System and its Appl ication in Active Noise Control, Part Ⅱ:Electro-Impedance Theory and Measurement Noise Control, Part Ⅱ:Electro-Impedance Theory and Measurement[J]. Journal of Northwestern Polytechnical University, 2001,19(2):246-250(in Chinese)
[8] He Zhengyao. Beampattern Optimization for a Conformal Projecting Array of Transducers with Baffle Effect and Mutual Coupling Among Elements[J]. Journal of the Acoustical Society of American, 2008, 123(5):1825-1829