电光与控制
電光與控製
전광여공제
ELECTRONICS OPTICS & CONTROL
2014年
5期
50-52,87
,共4页
目标标识%高分辨距离像%特征提取%Relax算法
目標標識%高分辨距離像%特徵提取%Relax算法
목표표식%고분변거리상%특정제취%Relax산법
target identification%HRRP%feature extraction%Relax algorithm
针对高分辨距离单元内目标散射点的复杂特性，从散射点模型理论出发，对目标散射点模型进行深入研究，分析了传统目标特征提取算法的局限性。给出了一种改进的特征提取方法，该方法首先对距离单元内的散射点进行预处理，去除噪声、强化有用信息，然后对有效的距离单元进行特征提取。基于实测数据的仿真实验结果表明：该方法能够准确反映目标的几何位置信息，在减小计算量的同时能获得较高的识别率。
針對高分辨距離單元內目標散射點的複雜特性，從散射點模型理論齣髮，對目標散射點模型進行深入研究，分析瞭傳統目標特徵提取算法的跼限性。給齣瞭一種改進的特徵提取方法，該方法首先對距離單元內的散射點進行預處理，去除譟聲、彊化有用信息，然後對有效的距離單元進行特徵提取。基于實測數據的倣真實驗結果錶明：該方法能夠準確反映目標的幾何位置信息，在減小計算量的同時能穫得較高的識彆率。
침대고분변거리단원내목표산사점적복잡특성，종산사점모형이론출발，대목표산사점모형진행심입연구，분석료전통목표특정제취산법적국한성。급출료일충개진적특정제취방법，해방법수선대거리단원내적산사점진행예처리，거제조성、강화유용신식，연후대유효적거리단원진행특정제취。기우실측수거적방진실험결과표명：해방법능구준학반영목표적궤하위치신식，재감소계산량적동시능획득교고적식별솔。
Considering the complex scattering property of a target in high-resolution range cell,the author studied the scattering point model of the target based on the theory of the scattering point model,and analyzed the limitations of traditional feature extraction algorithms .An improved feature extraction method was proposed based on Relax .The original digitals were preprocessed at first to eliminate the noises and strengthen the useful information,and then the features of target were extracted in effective range cell . Simulation results based on the measured data prove that the new method can reduce the computation complexity and increase the rate of identification,while accurately supplying the geometric position information of the target .
