Abstract

Results are presented from an experimental study of the propagation of acoustic pulses on the shallow marine shelf of the Black Sea and a coastal wedge. Signals associated with bathymetric refraction are analyzed. Short-period signal fluctuations on a Black Sea coastal wedge along stationary acoustic tracks with a mean bottom slope of ~25° are studied. The spectra and characteristic periods of fluctuations in the amplitude, azimuthal angles, angles of slide, and arrival times of pulsed signals are determined. The main reasons for fluctuations in the characteristics of signals under conditions of pronounced horizontal refraction with changing bathymetric characteristics are discussed.

中文翻译：

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搁板区域和黑海沿岸楔形区域内声信号的水平折射

摘要

结果来自对黑海浅海陆架和沿海楔块上声脉冲传播的实验研究。分析与测深折射相关的信号。研究了黑海沿岸楔形物沿静止声迹的平均周期底波约为25°的短周期信号波动。确定振幅，方位角，滑动角和脉冲信号到达时间的波动的频谱和特征周期。讨论了在明显的水平折射条件下，随着测深特性的变化，信号特性出现波动的主要原因。