CAJ | 학술논문

在对相控阵雷达系统建模仿真工作中，相控阵天线建模仿真是其中的关键所在。首先研究和探讨了平面相控阵天线仿真数学模型，给出了方向图数学函数。接着介绍了相控阵雷达系统建模中天线建模仿真的两种主要方法，多通道阵元级合成方法和方向图数据载入法。阵元合成法基于方向图数学函数给出了常规和差多通道的仿真算法，方向图载入法研究了如何对数据文件进行双线性插值来计算任意角度的增益。最后利用多通道阵元级合成方法进行了天线方向图建模仿真，通过仿真结果表明该算法的正确性，并说明两者仿真方法的适用条件。
재대상공진뢰체계통건모방진공작중，상공진천선건모방진시기중적관건소재。수선연구화탐토료평면상공진천선방진수학모형，급출료방향도수학함수。접착개소료상공진뢰체계통건모중천선건모방진적량충주요방법，다통도진원급합성방법화방향도수거재입법。진원합성법기우방향도수학함수급출료상규화차다통도적방진산법，방향도재입법연구료여하대수거문건진행쌍선성삽치래계산임의각도적증익。최후이용다통도진원급합성방법진행료천선방향도건모방진，통과방진결과표명해산법적정학성，병설명량자방진방법적괄용조건。
The modeling of phased array antenna is the key process of the simulation of phased array ra-dar system.The mathematical model of antenna pattern is introduced at first,then two main methods of modeling and simulation of the antenna is discussed:an array-element synthesis method,based on which pat-tern simulation of phase sum and difference can realize;the other method is to load antenna direction pattern data and use bilinear interpolation to compute antenna gain at any angle.And then a simulation example of a multi channel phased array antenna using synthesis method is given and the simulation results show the cor-rectness of the algorithm.At last the applicable conditions of the two methods is illustrated.