EN 62153-1-1-2004 金属通信电缆.试验方法.第1-1部分:电气.用离散傅里叶逆变换测量频域中的脉冲/分步回程损失 IEC 62153-1-1:2003
Metallic communication cables test methods Part 1-1: Electrical - Measurement of the pulse/step return loss in the frequency domain using the Inverse Discrete Fourier Transformation (IDFT)