Trace Statistics功能显示了迹线的平均值，偏差和峰峰值，我认为峰峰值是平坦度测量所需的值。
您可以在标记搜索范围内执行此分析。
以下是来自ENA用户手册：设置搜索范围标记搜索功能允许您将扫描范围的一部分设置为搜索目标（部分搜索功能）以及整个搜索范围。
对于“部分搜索”功能，您可以选择是否在通道中耦合跟踪。
标记统计值是使用搜索范围计算的。
在搜索范围内打开/关闭跟踪耦合的步骤按Channel Next / Channel Prev键和Trace Next / Trace Prev键激活要为其设置搜索范围的轨迹。
按标记搜索键。
单击搜索范围。
单击“耦合”以在搜索范围内切换ON / OFF跟踪耦合。
设置搜索范围的步骤按Channel Next / Channel Prev键和Trace Next / Trace Prev键激活要为其设置搜索范围的轨迹。
按标记搜索键。
单击搜索范围。
单击“搜索范围”以打开“部分搜索”功能。
单击“开始”，然后输入搜索范围的起始值（下限）。
单击“停止”，然后输入搜索范围的停止值（上限）。
显示搜索范围的统计值的过程设置并定义搜索范围，如上所述。
按Marker Fctn键。
单击“统计”以打开。
统计值计算并显示在屏幕上。
以上来自于谷歌翻译
以下为原文
The Trace Statistics functionality shows the Mean, deviation and peak-to-peak of a trace, I think the peak-to-peak value is what you need for flatness measurement. You can do this analysis in a marker search range. Below is from the ENA user manual:
Setting Search Range
The Marker Search feature allows you to set part of the sweep range as the search target (Partial Search feature) as well as the entire search range. For the Partial Search feature, you can select whether to couple traces in the channel. The Marker Statistics value is calculated by using the search range.
Procedure to Turn ON/OFF Trace Coupling within Search Range
Press Channel Next/Channel Prev keys and Trace Next/Trace Prev keys to activate the trace for which you want to set the search range.
Press Marker Search key.
Click Search Range.
Click Couple to toggle ON/OFF trace coupling within the search range.
Procedure to Set Search Range
Press Channel Next/Channel Prev keys and Trace Next/Trace Prev keys to activate the trace for which you want to set the search range.
Press Marker Search key.
Click Search Range.
Click Search Range to turn ON the Partial Search feature.
Click Start, then enter the start value (lower limit) of the search range.
Click Stop, then enter the stop value (upper limit) of the search range.
Procedure to Show Statistics Value of the Search Range
Set and define a search range as described above.
Press Marker Fctn key.
Click Statistics to turn ON. The statistics values are calculated and displayed on the screen.
Trace Statistics功能显示了迹线的平均值，偏差和峰峰值，我认为峰峰值是平坦度测量所需的值。
您可以在标记搜索范围内执行此分析。
以下是来自ENA用户手册：设置搜索范围标记搜索功能允许您将扫描范围的一部分设置为搜索目标（部分搜索功能）以及整个搜索范围。
对于“部分搜索”功能，您可以选择是否在通道中耦合跟踪。
标记统计值是使用搜索范围计算的。
在搜索范围内打开/关闭跟踪耦合的步骤按Channel Next / Channel Prev键和Trace Next / Trace Prev键激活要为其设置搜索范围的轨迹。
按标记搜索键。
单击搜索范围。
单击“耦合”以在搜索范围内切换ON / OFF跟踪耦合。
设置搜索范围的步骤按Channel Next / Channel Prev键和Trace Next / Trace Prev键激活要为其设置搜索范围的轨迹。
按标记搜索键。
单击搜索范围。
单击“搜索范围”以打开“部分搜索”功能。
单击“开始”，然后输入搜索范围的起始值（下限）。
单击“停止”，然后输入搜索范围的停止值（上限）。
显示搜索范围的统计值的过程设置并定义搜索范围，如上所述。
按Marker Fctn键。
单击“统计”以打开。
统计值计算并显示在屏幕上。
以上来自于谷歌翻译
以下为原文
The Trace Statistics functionality shows the Mean, deviation and peak-to-peak of a trace, I think the peak-to-peak value is what you need for flatness measurement. You can do this analysis in a marker search range. Below is from the ENA user manual:
Setting Search Range
The Marker Search feature allows you to set part of the sweep range as the search target (Partial Search feature) as well as the entire search range. For the Partial Search feature, you can select whether to couple traces in the channel. The Marker Statistics value is calculated by using the search range.
Procedure to Turn ON/OFF Trace Coupling within Search Range
Press Channel Next/Channel Prev keys and Trace Next/Trace Prev keys to activate the trace for which you want to set the search range.
Press Marker Search key.
Click Search Range.
Click Couple to toggle ON/OFF trace coupling within the search range.
Procedure to Set Search Range
Press Channel Next/Channel Prev keys and Trace Next/Trace Prev keys to activate the trace for which you want to set the search range.
Press Marker Search key.
Click Search Range.
Click Search Range to turn ON the Partial Search feature.
Click Start, then enter the start value (lower limit) of the search range.
Click Stop, then enter the stop value (upper limit) of the search range.
Procedure to Show Statistics Value of the Search Range
Set and define a search range as described above.
Press Marker Fctn key.
Click Statistics to turn ON. The statistics values are calculated and displayed on the screen.
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