针对水下高速运动小目标探测问题，提出一种使用主被动检测技术相结合的方法。使用匹配滤波器组与AR模型功率谱估计相结合的检测方法，首先指出目标回波在经过匹配滤波后存在单频分量，进一步对存在的单频分量利用AR模型谱估计方法进行检测，最后给出仿真的ROC曲线。通过仿真分析可以看出，该方法与一般的匹配滤波相比可以实现更低信噪比下的检测。
Aiming at detecting the underwater high-speed moving small targets, a method combining active and passive detection technology is proposed in this paper. The detection method combining matched filter bank and AR model power spectrum estimation is used . Firstly, it is pointed out that the target echo has a single frequency component after matched filtering . Then, the existing single frequency component is detected by AR model spectrum estimation method. Finally, the simulated ROC curve is given.Through the simulation analysis, it can be seen that this method can achieve lower SNR ration detection than the general matched-filter.
2023,45(13): 115-118 收稿日期：2022-05-14
DOI：10.3404/j.issn.1672-7649.2023.13.023
分类号：TN911.7；TB566
作者简介：张明洋（1998–），男，硕士研究生，研究方向为水声信号处理
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