箔条云干扰下的单目标恒虚警率检测研究  

Research on Constant False Alarm Rate Detection of Single Target Based on Chaff Cloud Jamming

作　　者：程嗣怡[1] 王玉冰[1] 罗朝义 张强[1] 

机构地区：[1]空军工程大学,西安710038

出　　处：《火力与指挥控制》2017年第5期134-138,共5页Fire Control & Command Control

基　　金：航空科学基金资助项目(20145596025)

摘　　要：箔条云在扩散过程中随着时间变化会稀释和扩大,其回波特性会发生改变,被检测目标与箔条的相互位置关系也会影响雷达恒虚警检测。针对作战对抗过程中箔条干扰易造成雷达接收机阻塞干扰目标检测,检测概率迅速降低且易丢失目标贻误战机,通过详细分析箔条的扩散过程及信号频谱特性及其箔条云和目标的两种位置关系,利用恒虚警处理算法在噪声基底为10 dB和20 dB情况下对目标进行恒定虚警率检测研究。研究结果对改善飞机检测性能和抗虚警能力以及提高战场生存率具有积极作用。Chaff cloud will be diluted in the process of diffusion and expand over the time, and it＇ s echo characteristics will also change, mutual position relationship between chaff and detected target may also affect radar constant false alarm detection. In the process of chaff jamming conditions of the radar receiver blocking, radar may lose targets and forfeit chance for combat easily,According to analyze the spread process of the chaff and signal spectrum characteristics as well as relations between the two kinds of position of chaff clouds and target, the constant false alarm processing algorithm is used for the target detection by constant false alarm rate when noise floor is 10 dB and 20 dB .The results of research have a positive role to improve the detection performance and ability to resist false alarm as well as battlefield survival rate.

关 键 词：箔条云干扰 单目标 扩散 频谱 恒虚警处理 

分 类 号：TN972[电子电信—信号与信息处理]