如何对校准集应用功率校准？

您需要执行“引导功率校准”，而不是分别执行ECal和源功率校准。
此校准方法将源功率校准与您选择的S参数校准（即ECal或Mechanical）相结合，并创建一个具有S参数误差项和所需源功率偏移的校准集，并为每个校准提供额外的响应功率校正优势
您的校准中的接收器。
以下是在引导校准会话期间启用功率校准的相关命令。
*引导功率校准* *使用标准源功率命令进行高级设置。* *使用功率传感器命令配置功率传感器。* *执行功率校准* * SENS：CORR：COLL：GUID：PSENsor * *功率传感器连接器类型
* * SENS：CORR：COLL：GUID：PSEN：CONN * * Cal cal for power cal * * SENS：CORR：COLL：GUID：PSEN：CKIT * * cal的功率等级* * SENS：CORR：COLL：GUID：PSEN
：POWer：LEVel * *执行匹配校正* * SENS：CORR：METHods：MATCh *有关更多信息，您可以参考_PNA在线帮助_并在索引中查找“引导功率校准”主题。



     以下为原文

  Instead of performing the ECal and source power cal separatly, you'll need to perform a "Guided Power Calibration".  this calibration method combines the source power calibration with your choice of S-Parameter calibration (i.e ECal or Mechanical) and creates a calset that has both S-Parameter error terms and the required source power offset with the added benefit of response power corrections for each of the receivers in your cal.

Here are the relevant commands for enabling the power calibration during your guided calibration session.

*Guided Power Cal*
*Use standard Source Power commands to make advanced settings.*
*Use Power Sensor commands to configure the power sensor.*
*Perform power cal*
*SENS:CORR:COLL:GUID:PSENsor*

*Power sensor connector type*
*SENS:CORR:COLL:GUID:PSEN:CONN*

*Cal Kit for power cal*
*SENS:CORR:COLL:GUID:PSEN:CKIT*

*Power Level for cal*
*SENS:CORR:COLL:GUID:PSEN:POWer:LEVel*

*Perform match-correction*
*SENS:CORR:METHods:MATCh*

for more information you can refer to the _PNA Online Help_ and in the index look for the "guided power cal" topic.

我将在Guided Power Cal主题中添加一个注释，指示power cal部分也存储在Cal Set中。
此外，我们可以将SCPI示例用于Guided Power Cal。



     以下为原文

  I will add a note to the Guided Power Cal topic that indicates that the power cal portion is also stored in the Cal Set. Also, we could use a SCPI example for Guided Power Cal.

另请注意，引导功率校准还具有其他几个属性：1）它允许在任何端口上执行源校准，然后将其传输到VNA的任何和所有其他端口，而无需重新调整功率计测量值。
（它使用S参数cal来计算传递函数）。
2）它在与功率传感器相同的端口上执行接收器校准，然后将该校准传输到所有其他端口。
所以现在，您同时具有源和接收器校准（加上接收器的所有比率）和所有S参数3）它提供匹配校正功率，因此将消除端口和DUT之间的不匹配误差。
注意：可以在Cal：Manage Cal：Corrections Methods对话框下关闭此不匹配校正，以便它仅返回接收器的响应校正（仍然对S参数进行完全校准）。
4）所有接收器和比率也同相校准，因此您可以使用任何端口的输入来测量信号之间的相对相位。
5）所有校正，包括源和接收器校准，都可以应用固定，去嵌入，端口-Z转换和端口匹配。



     以下为原文

  Also note that the guided power cal has several other attributes:
1) it allows doing a source cal on any port, and then transferring it to any and all other ports of the VNA, without redoing the power meter measurement. (it uses the S-parameter cal to compute the transfer functions).
2) It performs a receiver cal on the same port as the power sensor, and then transfers that cal to all the other ports.  So now, you have both  Source and Recevier calibrations (plus all ratios of receivers) and all S-parameters
3) it provides for match corrected power, so that mismatch error between the port and the DUT will be removed.  Note: this mismatch correction can be turned off under the Cal:Manage Cal:Corrections Methods dialog, so that it returns only response correction for receivers (full cal is still done on the S-parameters).
4) All the receivers and ratios are also calibrated in phase, so you can use the input from any ports to measure relative phase between signals.
5) all the corrections, including source and receiver cal, can have fixturing, de-embedding, port-Z converion and port matching applied.

谢谢大家的回复。
我能够成功地使用Guided Power Cal代码，然后使用Guided ECal代码来执行全面校准。
我现在想知道，如果可以将Guided Power Cal与非制导ECal操作结合起来吗？



     以下为原文

  Thank you all for your responses. I was able to succesfully use the Guided Power Cal code, followed by Guided ECal code, to perform a comprehensive calibration.

I am wondering now though, if is it possible to combine the Guided Power Cal with an Unguided ECal operation?

>我现在想知道，如果可以将Guided Power Cal与非制导ECal操作结合起来吗？
最简洁的答案是不。
知道为什么要这样做会很有趣，当这一个校准过程可以为您的所有端口，源和接收器提供s参数和功率校正。
答案很长，你可以随时创建自己的calset，其中包含通过不同方法创建的错误术语，但这是一个非常繁琐且容易出错的过程，只有在没有其他选项的情况下才能使用它。



     以下为原文

  > I am wondering now though, if is it possible to combine the Guided Power Cal with an Unguided ECal operation?

the short answer is no.  It would be interesting to know why you would want to do that, when this one single calibration process can give you both s-parameter and power corrections for all your ports, sources and receivers.

The long answer is that you can always create your own calset with error terms that you create through different methods, but that is a very tedious and error-prone process and one should only resort to it if they have no other option.

这是一个很长的故事，但我基本上实现了基本的Source Power Cal和Unguided ECal校准，因为我不理解Guided和Uided之间的区别。
在这一点上，我看到Unguided ECal校准有两个很大的缺陷 - 它只能执行2端口校准，并且没有简单的方法将Source Power Cal应用于它。
此外，Unguided Power Cal还有上述评论中讨论的陷阱。
因此，基本上我正在开发的工具已经从简单的Power Cal + Unguided ECal演变为简单的Power Cal，以及非引导或引导ECal的选项，以及（仅我将要做的）Guided Power + ECal。
再次感谢！



     以下为原文

  It's a long story, but I basically implemented the basic Source Power Cal and Unguided ECal calibration because I did not understand the difference between Guided and Unguided.

At this point, I see that the Unguided ECal calibration has 2 big pitfalls -- it can only perform a 2-Port calibration, and there is no easy way to apply a Source Power Cal to it. And also the Unguided Power Cal has the pitfalls discussed in the comments above.

So basically the tool I am developing has evolved from a Simple Power Cal + Unguided ECal, to a Simple Power Cal and the option of an Unguided or Guided ECal, to (what I am about to do) a Guided Power + ECal only.

Thanks again!

我没有看到简单的Guided Power Cal，但是有一个带有多个传感器和Ecal的Guided Power Cal示例程序。
我认为只需使用1个功率传感器即可轻松修改（如果您正在进行宽带毫米波校准，则需要多个传感器）。



     以下为原文

  I don't see a simple Guided Power Cal, but there is an example program for Guided Power Cal with multiple sensors and Ecal.  I think it is easily modified to use just 1 power sensor (multiple sensors are needed if you are doing a broadband mm-wave calibration).

为什么没有引导Ecal？
Guided Ecal是相同的（除了你必须定义端口连接以匹配ecal连接器）。
但这几乎是微不足道的，而且在远程界面中，它们是相同的，我相信。



     以下为原文

  Why unguided Ecal?. Guided Ecal is identical (except you have to define the port connects to match the ecal connectors). But that's almost trivial, and in the remote interface, they are identical, I believe.

我刚刚在引导功率校准部分读到，Guided Power Cal仅在固件A.09.30和更新版本中可用。
我有一些PNA的旧固件（A.06-ish），我也需要与之接口。
您对如何处理这些有任何建议吗？
具体来说，如何将功率校准应用于校准集？



     以下为原文

  I just read on the Guided Power Calibration section that the Guided Power Cal is only available in firmware A.09.30 and newer.

I have some PNA's with older firmware (A.06-ish) that I need to interface with as well. Do you have any recommendations on how to handle these? Specifically, how to go about applying the Power Calibration to the Cal Set?

我不认为可以使用较旧的固件在Calset中包含power calibraiton。
在过去的某个时候，我们确实让用户可以将自己的用户定义数据写入calset（使用按字符串名称保存的eterm保存带有用户定义名称的数组），但我认为这很好。
6分的。
因此，您必须独立地从校准中保存源功率校准偏移表并以编程方式将其恢复。
那，或者你可以将你的B单元升级到C版本然后使用以后的代码（我认为通过9.33）。
这样做有点贵，但确实延长了保修期和obsolescene。



     以下为原文

  I don't think it is possible using the older firmware to include power calibraiton in the Calset.  Some time in the past we did make it possible for a user to write their own user-defined data to a calset (save an array with a user-defined name using the save eterm by string name) but I think that was well after the 6's.

So you will have to save the source power cal offset table independenly from the Calibration and restore it programatically.  That, or you could upgrade your B unit's to C version and then use later code (up thru 9.33 I think).  It's a bit expensive to do that but does extend the warranty and obsolescene on them.

Dr_Joel是正确的 - 即使使用最新的PNA固件，对于标准S参数通道，仅Guided Power Cal可以在CalSet中保存源功率校正阵列。
Source Power Cal仍将其源校正阵列存储在作为通道一部分的内存缓冲区中，但当您将校准状态保存为“.csa”时，它们存储在“.csa”文件的“状态”部分中（
自从csa格式首次添加到PNA以来一直如此 - 在固件A.05.22中。



     以下为原文

  Dr_Joel is correct -- even with latest PNA firmware, for the standard S-parameter channels only Guided Power Cal saves source power correction arrays within the CalSet.  Source Power Cal still stores its source correction arrays within memory buffers that are part of the channel, but they are stored within the 'state' portion of a '.csa' file when you save a calibrated state as a '.csa' (that has been true since the csa format was first added to PNA -- in Firmware A.05.22).

我正在推动我们的部门升级固件，以便我可以使用全面的引导校准，但与此同时，我正在尝试尽可能地在旧固件上实现Power Cal和ECal。
我尝试执行非制导功率校准，然后将校准功率保存到CST和CAL文件中（MMEM：STOR：CST和MMEM：STOR：CORR）。
然后我加载了那些CST和CAL文件（MMEM：LOAD：CST和MMEM：LOAD：CORR），然后执行ECal校准。
当我查看得到的校准集时，它再次没有包含功率校准（我看到的是4P而不是4P +）。
我现在的问题是，保存和加载Power Calibration .cal和.cst文件（产生4P）之间的区别是什么，包括校准集中的功率校准（我用引导功率校准看到的4P +）？
加载.cal和.cst对我做了什么吗？
或者，您所说的是，加载.cst和.cal电源校准数据只会将其附加到用户定义的校准集而不是默认值时才会生效？



     以下为原文

  I am pushing for our dept to upgrade the firmware so that I can just use the comprehensive guided calibration, but in the meantime, I'm trying to implement the Power Cal and ECal on the older firmware as best I can.

I tried performing an unguided Power Calibration and then saving power the cal into CST and CAL files (MMEM:STOR:CST and MMEM:STOR:CORR). I then loaded those CST and CAL files (MMEM:LOAD:CST and MMEM:LOAD:CORR) and then performed an ECal calibration. When I look at the resulting Cal Set, it again does not have the Power Calibration included (I see the 4P instead of 4P+).

My question now is, what is the difference between saving and loading Power Calibration .cal and .cst files (which results in a 4P), and including the Power Calibration in the Cal Set (4P+ that I see with a Guided Power Cal)? Did loading the .cal and .cst do anything for me at all? Or, is what you are saying, that loading the .cst and .cal Power Calibration data will only have an effect if I attach it to a User Defined Cal Set instead of the default?

4P + cal仅在引导功率校准（GPC）后出现。
如果您的设备不支持GPC，那么您无法做任何事情将使4P +显示出来。
回到白天，在我们了解如何结合源功率校准，接收器功率校准和S参数校准之前，它们在PNA中是完全独立的功能。
较旧的分析仪还具有用于源功率校准和接收器校正以及s参数校正的单独功能。
实际上，源功率校准是一种不同的野兽，因为校正必须应用于硬件 - 在数据扫描之前，以正确设置源功率。
所有其他修正都是后期修正，因此只是数学偏移。
直到9.33才将源功率校准保存到校准集中。
并且，为了通过零件和零件创建您自己的源功率校准，您必须拥有所有适当的部件，这很复杂。
但在您的情况下，旧代码无法执行此操作，因此当您保存CST文件时，源校准将保存在STATE文件中，并且S参数校正将保存在校准集中。
并且，因为每个人都对此感到困惑，保存文件是：STA：没有纠错的状态文件 - 但是源Power Cal CST：状态文件（带有SPC）加上指向calset CSA的指针:( Cal-state-archive
）状态文件（带有SPC）和指向校准集的指针，如果在仪器的校准集中没有相同的校准集，也将调用校准集（如果它与一个校验和匹配则不会被调用）
已经在那了）。



     以下为原文

  The 4P+ cal is only going to show up after a Guided Power Calibration (GPC). 

If your unit does not support GPC, nothing you can do will make the 4P+ show up.

Back in the day, before we understood how to combine source power cal, receiver power cal, and S-parameter cal, they were completely separate functions in the PNA.  Older analyzers also had separate functions for source power calibration and receiver correction and s-parameter correction.

In fact, source power cal is a different beast, as the correction has to be applied to the hardware -before- the data-taking sweep, to set the source power properly.  All the other corrections are post acquistion corrections, and therefore just math offsets.

It wasn't until 9.33 that the source power cal was saved to a calset.  And, in order to create by bits and parts your own source power cal, you have to have all the proper pieces in place, its complicated.

But in you case, older code can't do it, so when you save a CST file, the source cal is saved in the STATE file and the S-parameter correction is saved in the Calset.  And, because everyone is confused on this, the save files are:

STA:  State file with no error correction -but with Source Power Cal
CST: State file (with SPC) plus a pointer to a calset
CSA: (Cal-state-archive)  State file (with SPC) and a pointer to a calset, and the calset will also be recalled if there is not an identical one already active in the calsets of the instrument (it won't be recalled if it matches the checksum of one already there).

此外，如果要构建源和接收器以及s参数cal，则必须按特定顺序执行：源功率Cal和接收器cal，将其保存到calset，然后将S参数cal保存到
相同的calset。
如果你首先进行S参数，源功率校准将改变刺激缓冲，并且rx cal将消除S参数cal，因为刺激缓冲区不匹配（功率是刺激缓冲区的一部分，以及点
，IFBW，频率，扫描时间，月亮相位等）。



     以下为原文

  Further, if you want to build a source and receiver and s-parameter cal, you have to do it in a particular order:

Source power Cal and receiver cal, save it to a calset, then S-parameter cal and save it to the same calset.

If you do S-parameter first, the source power cal will change the stim-buffer and the rx cal will wipe out the S-parameter cal as the stim buffers don't match (power is part of the stim buffer, along with points, IFBW, freq, sweep time, phase of the moon, etc).

稍微纠正Dr_Joel所说的“.sta”文件：> {quote：title = Dr_joel写道：} {quote}> STA：没有纠错的状态文件 - 但是源Power Cal'.cst'和'.csa
'文件确实将你的频道源Power Cal（）保存到其中，但'.sta'文件没有。



     以下为原文

  A slight correction to what Dr_Joel stated about '.sta' files:
> {quote:title=Dr_joel wrote:}{quote}
> STA: State file with no error correction -but with Source Power Cal

'.cst' and '.csa' files do get your channel(s) Source Power Cal(s) saved into them, but '.sta' files do not.

（我很惊讶，我希望你不介意我检查一下......）好吧，我相信。编辑：Dr_joel于2013年4月8日下午5:58



     以下为原文

  (I am surprised, I hope you don't mind if I check this....)

ok, I believe.

Edited by: Dr_joel on Apr 8, 2013 5:58 PM