多径环境下利用波场稳定分量的波束形成
Beamforming in multipath environment using the stable components of wave field
摘要：
该论文描述了基于将天线上的场表示为由窄射线束形成的若干稳定分量的叠加的声波导中的波束形成过程[A. L. Virovlyansky，J. Acoust. Soc. Am. ${\bf 141}$，1180-1189（2017）]。提出了一种改进的匹配场处理方法，该方法基于从比较天线上的测量场和计算场到比较它们的稳定分量的过渡。修改后的方法变得不那么敏感的环境模型的不可避免的不准确性。在脉冲源的情况下，稳定分量携带信号，其到达时间可以作为求解逆问题的输入参数。使用稳定分量作为发射天线孔径上的初始场，使得可以激发沿给定射线路径传播的窄连续波束。
英文摘要：
The paper describes the beamforming procedures in an acoustic waveguide based on representing the field on the antenna as a superposition of several stable components formed by narrow beams of rays [A.L. Virovlyansky, J. Acoust. Soc. Am. ${\bf 141}$, 1180-1189 (2017)]. A modification of the matched field processing method is proposed, based on the transition from comparing the measured and calculated fields on the antenna to comparing their stable components. The modified approach becomes less sensitive to the inevitable inaccuracies of the environmental model. In the case of a pulsed source, the stable components carry signals whose arrival times can be taken as input parameters in solving the inverse problems. The use of the stable components as the initial fields on the aperture of the emitting antenna makes it possible to excite narrow continuous wave beams propagating along given ray paths.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
