时域近场测试中的采样面截断误差分析与修正

Sampling-Plane Truncation Errors Analysis and Correction in Time-Domain Near-Field Measurement

采样面截断误差是影响近场测试结果的一个很重要的因素。本文结合频域近场测量中对采样面截断误差的分析结果 ,根据时域近场测量的时域近场特性 ,借助 PSTD算法和 PML技术 ,提出一种修正时域近场测量采样面截断误差的新方法 ,数值例子验证了方法的有效性。

Sampling plane truncation error is a very important factor of affecting the result in time domain near field measurement. In thsi paper, according to the character of time domain near field, and by means of PSTD algorithm and PML technique, a new correction method is presented, which is combined with the truncation error analysis in frequency domain measurement. Numerical results demonstrate the efficiency of this method.