找不到任何选项来测量CRO进行脉冲下垂

Pulse Droop，通常不是示波器测量。
它通常仅适用于RF脉冲的包络，而不适用于数字设计人员所看到的那种脉冲。
此外，至少在我能够找到的范围内，在算法上没有很好地定义脉冲下垂测量。
我发现的唯一文件只有一张图片，基本上是手绘的，一条线指向脉冲的头部，另一条线指向尾部，说下垂是它们之间的差异。
我认识的大多数人使用示波器标记进行眼睛测量。
大约一年前，我在一个客户的MATLAB中写了一个脉冲下垂测量功能。
这是一个高BW范围应用程序，因此没有涉及检测器。
由于客户付了钱，我无法共享代码。
这里，一般是我使用的算法。
- 找出脉冲前沿和脉冲后沿的平均斜率。
- 在脉冲峰值上画一条水平线。
- 找到前坡与水平线相交的位置。
那就变成了T0。
- 画一条线，可能是一个角度，坐在脉冲上。
- 找到后坡与第二条线相交的位置。
那就变成了T100。
- 测量从T5到T15，从T85到T95的平均幅度。
- 这两个测量值之间的差异是下垂。
在我的情况下，客户不希望在脉冲前面有任何潜在的峰值，或者脉冲后面的“软肩”会影响测量。
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     以下为原文

  Pulse Droop, is not generally an oscilloscope measurement. It usually only applies to the envelope of an RF pulse, and not to the sort of pulses that digital designers look at.

Further, the pulse droop measurement is not well defined, algorithmically, at least as far as I have been able to find. The only documents I have found have a single picture, basically hand-drawn, with a line pointing to the head of the pulse, and another line pointing to the tail, saying that the droop was the difference between them. Most people I know make the measurement by eye, using scope markers.

I wrote a pulse droop measurement function in MATLAB about a year ago, for a customer. It was a high BW scope application, so there was no detector involved. Since the customer paid for it, I can't share the code. Here, in general is the algorithm I used.

- Find the average slope of the front of the pulse, and the back of pulse.
- Draw a horizontal line across the peak of the pulse.
- Find where the front slope intersects the horizontal line. That becomes T0.
- Draw a line, probably at an angle, that sits on the pulse.
- Find where the back slope intersects the second line. That becomes T100.
- Measure the average amplitude from T5 to T15, and from T85 to T95.
- The difference between those 2 measurements is the droop.

In my case the customer didn't want any potential peak at the front of the pulse, or "soft shoulder" at the back of the pulse to affect the measurement.

Al

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感谢Algoss的回复



     以下为原文

  Thanks Algoss for the reply