声呐目标回声信号的极点提取

声呐目标的回声信号携带有该目标的某些特征信息,提取出这些特征信息,有助于目标的自动识别。本文应用PRONY法从模拟的目标回声信号中提取了极点,旨在探索极点的准确提取与有关参数间的关系。最后本文讨论了虚假极点的剔除,并从实测的目标回声信号中提取出极点,将所得结果与理论值进行了比较。

Extracting poles from echo of sonar traget

The echo of soner target carries some characteristic imformation of the target.It is significat to extract those poles for autoidentification of somar target.In order to inquire into the relationship between the correct extraction of poles and related parameters,Prony's method is employed to extract poles from simulated echoes in this paper.Finally,the poles extracted from the measured echo of a sphere teaget are compared with theoretical valus.