基于匹配滤波器组与AR谱估计联合的目标检测  

Target detection based on matching filter group and AR spectrum estimation

作　　者：张明洋 李保昌 刘雨东 ZHANG Ming-yang;LI Bao-chang;LIU Yu-dong(Shanghai Marine Electronic Equipment Research Institute,Shanghai 201108,China)

机构地区：[1]上海船舶电子设备研究所,上海201108

出　　处：《舰船科学技术》2023年第13期115-118,共4页Ship Science and Technology

摘　　要：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.

关 键 词：匹配滤波器组 AR谱估计 目标检测 

分 类 号：TN911.7[电子电信—通信与信息系统] TB566[电子电信—信息与通信工程]