摘要
为抑制单脉冲雷达的测角闪烁,本文提出宽带单脉冲跟踪雷达的最大熵测角新方法.文中分析了由于差波束方向图调制引起的回波谱展宽现象,证明了目标角运动中心与谱展宽程度和波形熵之间的关系,提出基于最大波形熵搜索的目标角度估计方法,并给出了改进的最大熵测角步骤以降低计算量.与现有的高分辨体制下的角度估计方法相比,本方法具有更强的角闪烁抑制能力.仿真结果说明了本方法的有效性.
In order to suppress angle glint in monopulse radars system, a maximum entropy method for angle estimation in wideband monopulse tracking radar is presented. Spectrum widen of difference beam echoes due to the pattern modulation is investigated. Basing on the relatiens between the spectrum widen, center of target angular motion and waveform entropy, a novel angle estimation method by maximum waveform entropy searching is presented, and an improved method to reduce computational complexity is given later. Compared with high resolution angle estimation methods available, the novel method performs more conspicuous in angle glint suppression. Simulations show the effectiveness of the new method.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2006年第12期2180-2184,共5页
Acta Electronica Sinica
基金
国家部委预研基金资助项目(No.51483010104DZ0102)
关键词
单脉冲
测角
角闪烁
最大熵
高分辨
monopulse
angle estimation
angle glint
maximum entropy
high resolution
