一种基于声学回波统计的水下散射体数量密度评估模型

An Estimation Model for Number Density of Underwater Scatterers Based on Acoustic Echo Statistics

摘要:

对水中泥沙、气泡群、鱼群等随即分布散射体群的声学回波统计特性进行了研究，建立了一种基于回波能量统计特征的水下散射体数量密度评估模型。对该模型进行了介绍与推导，并通过仿真试验证明了其对水下散射体数量密度评估的有效性。

关键词:声学回波;水下散射体;能量统计特征;数量密度评估

Abstract:

The acoustic echo statistical characteristics of randomly distributed scatterers，such as underwater sediment，bubble groups and fish schools are studied. On this basis，an estimation model for the number density of underwater scatterers based on statistical characteristics of echo energy is established. Introduction and derivation are carried out on this model，and the effectiveness of the model for the number density estimation of the underwater scatterers is testified through simulation experiments.

Key words:acoustic echo;underwater scatterers;statistical characteristics of energy;number density estimation