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。
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 developing signal processing algorithms on fixed-point DSP are briefly described and given out as references for future work.
出处
《声学技术》
CSCD
2010年第2期206-209,共4页
Technical Acoustics
基金
国防科工委基础科研资助(A1320070067)
国家自然科学基金资助(60802072)
关键词
常规波束形成
自适应稳健波束形成
定点矩阵分解
conventional beamforming
adaptive robust beamforming
matrix decomposition in fixed-point
