| 一种波束域主模式抑制算法 |
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| 引用本文： | 楼万翔,黄迪. 一种波束域主模式抑制算法[J]. 声学技术, 2020, 39(3): 385-388 |
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| 作者姓名： | 楼万翔 黄迪 |
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| 作者单位： | 中国船舶重工第715研究所, 浙江杭州 310023 |
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| 摘 要： | 针对阵元域主模式抑制(Dominant Mode Rejection, DMR)算法在阵元数增加时运算量急剧增大和阵元间隔失配时其稳健性降低这两个问题,提出了一种波束域DMR(Beam-space Dominant Mode Rejection, BDMR)算法。该算法把DMR算法从阵元域空间转换到波束域空间,实现降维运算,在保留原算法性能的同时,具有更快的运算速度和更好的稳健性。通过仿真试验,验证了该算法的有效性。
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| 关 键 词： | 主模式抑制 波束域 稳健性 运算速度 阵型失配 |
| 收稿时间： | 2019-01-08 |
| 修稿时间： | 2019-03-08 |
A beam-space dominant mode rejection algorithm |
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| LOU Wanxiang,HUANG Di. A beam-space dominant mode rejection algorithm[J]. Technical Acoustics, 2020, 39(3): 385-388 |
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| Authors: | LOU Wanxiang HUANG Di |
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| Affiliation: | 715 th Institute of CSIC, Hangzhou 310023, Zhejiang, China |
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| Abstract: | In order to solve the problems that the computation load of the dominant mode rejection (DMR) algorithm in array element domain increases sharply when the number of array elements getting large, and that the performance of the algorithm degrades when element spacing mismatching, a beam-space dominant mode rejection (BDMR) algorithm is proposed. The Algorithm transforms the array element space to the beam space to realize the dimensionality reduction calculation. The algorithm has faster calculation speed and better robustness while preserving the good performance of the original algorithm. Simulation result proves its validity and superiority. |
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| Keywords: | dominant mode rejection beam space robustness calculation speed element spacing mismatch |
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