The radiation pattern in the near and far field of each frequency component of the spectrum of current pulse on a transmission line.
传输线线上脉波电流之频谱与分布及其各频率成份之辐射远近场型之差异。
The red pulse and resulting frequency spectrum are clearly different than the correct blue pulse and resulting frequency spectrum with pretrigger delay.
红色脉冲及所得频谱与具有预触发延迟的正确的蓝色脉冲及所得频谱显然是不同的。
Since the measurement initiation is controlled by the leading slope of the pulse, part of the pulse is lost and the resulting spectrum is distorted unless some pretrigger delay is specified.
因为测量的引发是由脉冲的前导沿控制的，除非设置一定的预触发延迟，否则会丢失部分脉冲、造成频谱失真。
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