测量后更新错误条款

是的，错误条款相同。
关闭转弯校正的一个问题是：通常在逐个轨迹的基础上进行校正，这样您就可以将其打开一个迹线，然后关闭另一个迹线并查看相同参数并查看chagne。
但是，如果您使用远程命令，则可能是您仍在提取校正数据。
获取未修正数据的两种可靠方法：1）转到Calset Manager并取消选择正在使用的通道的calset，然后按“CLOSE”（NOT OK）。
按OK只需再次选择高亮显示卡组。
2）关闭迹线上的校准并从该迹线中拉出数据。
确保使用Calc：Par：Sel选择propor trace。
你可以查看你拉回的数据（只是第一点或第二点），并确保它既复杂（两个值）又采用Re，Im格式，并且它与分析仪的原始数据匹配（将跟踪与
以极性格式关闭并查看标记）。
如果值相同，那么检查你的数学。
我做了很多，总是有效。



     以下为原文

  Yes, the error terms are identical.  

The one issue might be when turn correction off: normally correction is applied on a trace-by-trace basis so you can have it on for one trace and off for another for the same parameter and see the chagne.  BUT, if you are using remote commands, it might be that you are still pulling corrected data.

Two sure ways to get uncorrected data: 
1) Go to the Calset Manager and UNSELECT the calset for the channel you are using and then press "CLOSE" (NOT OK).  pressing OK just selects the highlight calset again.
2) Turn off cal on a trace and pull the data from THAT trace. make sure to use Calc:Par:Sel to select the propor trace.

You can look at the data you pull back (just the first point or two) and ensure that it is both complex (two values) and in Re, Im format, and that it matches the raw data from the analyzer (put the trace with Cor off in a polar format and look at the marker).

IF the values are the same, then check your math.

I've done this lots, always works.

谢谢回复。
我得到的数据肯定是未校正的，我的数学应该是正确的，因为我的波形非常接近校正的波形。
在这一点上，我认为我得到的错误条款被截断，因为我以ASCII格式传输。
我试图让它在REAL中工作，64。
从来没有这样做，所以需要弄清楚如何做（我使用labview）。
我的假设是正确的还是真的，64格式给出了PNA内部使用的确切值？
谢谢Jeremie



     以下为原文

  Thanks for the reply.

The data I get are definitely uncorrected and my math should be right as my waveform is very close to the corrected one.

At this point I think the the error terms I get are truncated as I transfer in ASCII format. I am trying to get it to work in REAL,64. Never done it so need to figure out how to do it (I use labview). 

Is my assumption correct and wiill REAL,64 format give me the exact value used internally in the PNA?

Thanks
Jeremie

是的 - Real64应该为您提供PNA内部例程中使用的相同级别的精度。



     以下为原文

  yes - Real64 should give you the same level of precision used in the PNA's internal routines.

嗨，我登录时遇到了问题....但它终于再次运行了。
我尝试去除平均值并逐步扫描，但它仍然与我之前描述的完全一样......任何人都对可能发生的事情有所了解???
谢谢。
雷米



     以下为原文

  Hi,

I had problems logging in.... but it finally works again.

I tried removing averaging and stepped sweep but it is still exactly the same as I described earlier... Anyone has some insight on what can happen???

Thank you.

Jeremie

我想知道您所看到的变化是否仅仅是由于痕量噪声。
你能获取两个数据读数并将它们与外部计算值一起绘制吗？



     以下为原文

  I wonder if the variation you are seeing is simply due to trace noise.  Can you take two data readings and plot them together against the externally computed value?

我不确定你采取“两个数据评级”是什么意思。
你看到我从9月6日到我的帖子上的数字了吗？
我绘制了PNA发送给我的反应，该反应来自我在matlab中从未修正的那个中纠正的反应。
你想看到不同的东西吗？



     以下为原文

  I am not sure what you mean by taking 'two data radings'. Did you see the figures I attached to my post from Sept 6? I plotted the response that the PNA sends me against the one I corrected in matlab from the uncorrected one. Do you want to see something different that this?

对不起，迟到的回复，一直很忙。
我的意思是，从VNA扫描，将数据保存到存储器，进行另一次扫描，并查看扫描到扫描的变化。
如果它是您所看到的变化的顺序，那么它可能只是扫描到扫描的跟踪噪声。
如果它可能来自VNA噪音，很难从你到目前为止的情节中看出来。



     以下为原文

  Sorry for the late reply, been busy.

I mean, take a sweep from the VNA, save the data to memory, take another sweep, and see what the sweep-to-sweep variation is.  If it is on the order of the variation that you are seeing , then it might just be sweep-to-sweep trace noise.  Hard to tell from the plots you have so far if it might be from VNA noise.

> {quote：title = jem写道：} {quote} >>但是我观察到VNA上的频率点（使用标记）与我在matlab中的频率点不完全相同。
我真的很惊讶看到这一点，它们很接近但不完全相同...请注意，我通过查询到PNA得到我的频率向量所以我不手动创建....任何人都有这方面的解释
？
>谢谢> Jeremie您可能需要将标记设置为离散模式;
在正常模式下，它们可以具有任何值，并且它们将跨越跟踪值。
例如，如果频点为1 GHz和2 GHz，则可以将标记置于1.5 GHz或任何其他值。
要将标记置于离散模式并将其强制置于测量的频率上，请选择Marker：Properties：Discrete On



     以下为原文

  > {quote:title=jem wrote:}{quote}
>> However I observed that the frequency points on the VNA (using markers) are not exactly the same as the one I have in matlab. I was really surprised to see this, they are close but not exactly the same... Note that I get my frequency vector via a query to the PNA so I don't create it manually.... Anyone has an explanation on this?
> Thanks
> Jeremie

You might need to set the markers to discrete mode; in normal mode they can have any value and they will interoplate the trace values.  For example, if you frequency points are 1 GHz and 2GHz, you can place the marker at 1.5 GHz or any other value.

To put the marker in discrete mode and force it onto the measured frequencies, select Marker:Properties:Discrete On