| 宽带波束形成在定点DSP上的实现 |
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| 引用本文： | 丰平,马晓川,李璇,陈模江,刘大鹏. 宽带波束形成在定点DSP上的实现[J]. 声学技术, 2010, 29(2): 206-209. DOI: 10.3969/j.issn1000-3630.2010.02.019 |
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| 作者姓名： | 丰平 马晓川 李璇 陈模江 刘大鹏 |
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| 作者单位： | 中国科学院声学研究所数字系统集成部,北京,100190 |
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| 基金项目： | 国防科工委基础科研资助，国家自然科学基金 |
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| 摘 要： | 阐述了宽带波束形成算法在定点DSP上实现时需要考虑的问题,讨论了定点方式实现矩阵特征值分解和非线性运算。比较了宽带常规波束形成（CBF）和宽带稳健自适应波束形成（RCB）算法的定点和浮点实现结果,给出了快速实现和验证定点数字信号处理算法的方法和步骤。通过计算实际数据验证了这些方法的正确性,可以有效提高在定点DSP上开发复杂数字信号处理算法的效率。
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| 关 键 词： | 常规波束形成 自适应稳健波束形成 定点矩阵分解 |
| 收稿时间： | 2008-12-05 |
| 修稿时间： | 2009-03-25 |
Implementation of braodband beamformer with fixed-point DSP |
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| FENG Ping,MA Xiao-chuan,LI Xuan,CHEN Mo-jiang and LIU Da-peng. Implementation of braodband beamformer with fixed-point DSP[J]. Technical Acoustics, 2010, 29(2): 206-209. DOI: 10.3969/j.issn1000-3630.2010.02.019 |
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| Authors: | FENG Ping MA Xiao-chuan LI Xuan CHEN Mo-jiang LIU Da-peng |
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| Affiliation: | FENG Ping,MA Xiao-chuan,LI Xuan,CHEN Mo-jiang,LIU Da-peng(Integrated Digital System Laboratory,Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China) |
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| Abstract: | Problems about implementing beamforming on fixed-point DSP, such as eigenvalue-decomposition of matrix and non-linear calculation, are discussed and solutions to these problems are given out in this paper.Two methods, conventional beamforming(CBF) and robust Capon beamforming(RCB) implemented with floating-point and fixed-point are compared.Performance of using Jacobi method to calculate the eigenvalue-decomposition of Hemritten matrix with floating-point and fixed-point are compared.Steps to quickly develo... |
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| Keywords: | conventional beamforming adaptive robust beamforming matrix decomposition in fixed-point |
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