根据柱面波近远场变换基本原理，引出柱面波模系数与辐射源空间位置的特定约束关系，提出一种先将柱面波谱数据进行滤波处理，然后进行波谱远场变换，最终得到抑制散射误差后的远场方向图的方法。随后通过构建阵列天线模型，对抑制效果进行仿真分析。结果表明：该方法在第Ⅰ副瓣位置可改善2dB，120°范围内方向图与理想结果较为吻合，能有效抑制散射误差对远场方向图产生的影响。%According to the cylindrical wave near field to far field transformation principle , a constraint relationship between mode coefficient of cylindrical wave and position of radiation source space is presented , Then a new method is proposed to filter the cylinder spectrum data , and then carry out the spectral far field transformation .Finally , the far field pattern of the scattered error is finally obtained . Then,the suppression effect is simulated and analyzed by building the model of the array antenna .It shows that an improvement of 2dB in the first sidelobe positions by suppression method .Within the range of 120°,the post results and the ideal results are in good agreement ,the method effectively inhibited the scattering effect on the far field pattern .
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