雷达点迹的目标智能特征提取方法研究  

Intelligent radar point target trace feature extraction method

作　　者：吉军 

机构地区：[1]江苏省电力公司,江苏海安226600

出　　处：《信息技术》2013年第6期83-87,共5页Information Technology

摘　　要：雷达数据处理中,目标点迹的输出质量直接影响后续航迹处理的效果,是保证航迹处理成功建航的关键。通过从信号处理给出的目标视频幅度、距离、方位信息中,采用特定的滑窗检测和终了判定准则进行目标点迹的检测,从而得到目标点迹的回波数特征信息;然后从目标回波包络幅度信息中提取目标距离单元上的峰值,智能完成距离凝聚,解决了目标距离分裂现象,并且得到目标点迹的幅度包络特征信息。最后,采用质心法对方位凝聚,完成点迹的凝聚,输出带有目标智能特征信息的点迹给后绪的航迹处理。同时,对点迹的目标智能特征提取这一过程进行了硬件实现。通过某型雷达的实测数据分析,验证该方法的可行性和工程实用性。In data processing of radar, the quality of dot has directly impact to trail processing, which is key element of creating trail successfully. This dot detection applies special slide-window detection and end-decision formula from target＇ s magnitude, range, azimuth which derive from signal processing module. Thus, the echo number of target dot is obtained. Then range condensation that solves range-split situation is done by extraction maximum of range magnitude profile, and dot＇ s magnitude profile is got. Finally, azimuth condensation is done by the eentre-of-gTavity method and the trail processing gets the target dot＇ s characteristic information. In the meanwhile, this paper gives hardware realization of target＇ s characteristic extraction. The real data analysis of some radar shows that the proposed algorithm is efficient and feasible in the engineering.

关 键 词：点迹检测和凝聚 目标特征提取 信号处理 硬件实现 

分 类 号：TN957[电子电信—信号与信息处理]