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How to Retrieve the MeasEqn Value with AEL?

Question asked by dorr_eesof on Apr 13, 2004
Latest reply on Apr 13, 2004 by dorr_eesof

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Hi, there,

I am a newbie on ADS. Dont know how to retrieve the evaluated measeqn value instead of the string value. Any one can help me out? Thanks a lot.

Dorr

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mfredrik Apr 13, 2004 11:54 AM
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A MeasEqn is evaluated by the AEL Expression handler at the end of the simulation and the result is sent to the dataset. You can't run an AEL script later to evaluate a MeasEqn on a schematic since the values of the passed measurements are not known in the context of standard AEL. The values of the MeasEqn's are stored in the dataset so you can display and operate on those inside a DataDisplay window if you like.

I'm not exactly sure what you want to accomplish, but you can write a custom AEL Expression function and install it into the ADS expression handler. You can then use that custom function in a MeasEqn. This function can do various things, like compute some advanced measurements and/or dump the results to a file etc etc.

Please see these examples for more info;

Save simulation data to ASCII file directly (writepara)

Bandwidth

AEL Expression Installation Instruction

Please provide some more details on what you are trying to do if this does not help.
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dorr_eesof Apr 13, 2004 9:15 PM
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Thank you very much,MFREDRIK. Your reply helps a lot.
Truth is I am trying to do some post-simulation data processing with AEL. The final goal is to establish an optimization loop with ADS simulation engine and MATLAB code on optimization algorithm. I have tried the MATLAB component provided in Ptolemy. It seems the data transmitted to MATLAB code is simultanenously with the DF control instead of trasmitting after simulation. So I resort to AEL for proper resolution.

Another post in our forum has mentioned the topic of control ADS from other applications. But I still not quite sure about how to coordinate the communication between the different threads or programms. Can AEL do this? Thank you.

Dorr
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How to Retrieve the MeasEqn Value with AEL?

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