Excet, Incorporated, 8001 Braddock Road, Suite 105, Springfield, Virginia 22151, USA.
J Acoust Soc Am. 2011 Jun;129(6):3453-6. doi: 10.1121/1.3589251.
A 48 m rail with a moving receiver was used to measure forward scattering from a spherical shell lying on the bottom in the Gulf of Mexico. The target was mid-way between the source and rail, on a line from the source bisecting the rail. The major obstacle to the measurement of forward scattering is the much stronger source signal which overlaps the scattered signal in space and time. Here, forward scattered target strength is obtained by processing the received signals using a wavenumber filter to remove the incident wave. The result compares favorably to that obtained from numerical predictions.
采用带有移动接收器的 48 米轨道来测量位于墨西哥湾底部的球形外壳的前向散射。目标位于源和轨道之间的中间位置，在从源到轨道的等分线上。前向散射测量的主要障碍是更强的源信号，它在空间和时间上与散射信号重叠。在这里，通过使用波数滤波器对接收信号进行处理来消除入射波，从而获得前向散射目标强度。结果与数值预测得到的结果相当吻合。
