【摘要】 为了检验“任意结构阵列宽带恒定束宽波束形成新方法”(声学学报, 2001;26(1):55—58)一文中提出的方法是否在实际系统中可行,我们针对24元均匀圆阵进行了湖上实验。基于实验数据,在覆盖一个倍频程带宽的8个频率点上形成了恒定束宽波束。实验圆阵的实测阵列流形和理论阵列流形存在较大误差,这表明该文采用的可适用于任意结构阵列的宽带恒定束宽波束形成方法具有良好的宽容性。更多还原

【Abstract】 To verify the method proposed in the paper "A new method of broadband constant beamwidth beamforming for arbitrary geometry arrays"(ACTA ACOUSTICA (In Chinese), 2001; 26(1): 55-58), lake-experiment was carried out for a 24-element uniform circular array. Based on the data collected from the experiment, constant beamwidth beams were formed at eight different frequencies covered one-octave frequency band. The big difference between measured and theoretic manifold of the circular array showed that the broadband constant beamwidth beamforming method used in the paper has good tolerance.更多还原