使用液-固耦合振动模型对目标回声产生机理建模，推导耦合振动公式，得出单激励和多激励源下的目标回波表达式。从新的角度分析目标回波产生机制，并使用随机过程中的ARX模型构建目标模型。对于浅海环境中回波测试，使用多输入单输出ARX模型构建，最终分别求解出目标的直达入射波和在直达入射波作用下的直达回波，有效消除了多途信道的影响，获得了在等效于自由场中的测量结果。最后，通过水池实验验证了算法的有效性。
Abstract
Using liquid-solid coupling vibration model of the target echo generation mechanism and deriving coupled vibration formula, the target echo expression in the conditions of single and multiple excitation sources is drawn. The target echo generation mechanism is analyzed from a new point of view by building the target model in using a random process ARX models. Multi-input single-output ARX model is used to build target echo test model in shallow water environment. Ultimately, the target direct incident and direct echo are solved. The influence of multi-channel path is eliminated effectively. Measurement results equivalent to the free field is obtained. The effectiveness of the algorithm is verified by a pool experiments finally.
关键词
浅海信道 /
耦合振动 /
目标回波 /
ARX模型。
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参考文献
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