New StaMPS release (4.1-beta)

Had you tried the setparm(‘scla_deramp’,‘y’) as mentioned?

Yes, It works fine as I mentioned in previous post, but would you please to give some tips concerning the ramps estimation and removing. IsIt should be applied after step 7?
And then 're apply step6?

This is done during step 7.
After running step 7, you always should re-run step 6 (whatever option had scla_deramp), or at least is what I have always understood

Could you please plot the ps_plot(‘u-dmo’,1) and share it here?

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Sure, I’ll run step 6, after 7, and share it

I re-run step 6, Unwrapping, below is the results of ps_plot(‘u-dm’), it is obvious the ramps in many infgms,

and following is the ps_plot(‘u-dmo’,1),

Would you please to explain more, how we could get better results?

I like more this latest results, as now are not ramps there anymore. You could see what you have removed using the command ps_plot(‘o’,1) .

Answering to your question, well, you could try to use TRAIN, the toolbox for atmospheric noise removal developed by David Bekaert, and there you can use weather models, and other data to reduce the APS of the scene.

In fact, the trends you have removed using the ‘o’ option, other people say that are tropospheric ramps, and not orbit ramps, so you could also use this toolbox to help you removing noise.

Additionally, you could use GPS data or similar to reduce bias and fit your output to that, but it is something more difficult that one forum thread can handle.

Still, I invite you to look for this techniques in literature and see what you could think to use/apply.

Another option is to use the step 8 integrated in StaMPS, which does a spatio-temporal filtering to estimate APS signal. Then, for removing it the option is ‘s’ (from slaves) and should be used as follows: ps_plot(‘u-dmos’,1) but I cannot recall if this option is not supported. Just check it out

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Tremendous thanks to you, but do you recommend to proceed with these results?

Or to get continue with your very nice suggestion!

As the manual instructions is followed,

Run both ps_plot(‘o’) or/and ps_plot(‘o’,1) gives the below error,

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Had you defined any reference point?

Manually I didn’t define, but as you see the 2451646 ref ps selected automatically.

It means that it takes all available points. I am not sure why you got the error…

May you try to manually define one?

Yes, It is possible, how to define, might be I didn’t read all the manual, or I didn’t see anything related to define rp manually, would you please refer to it,

for example:

setparm(‘ref_cen’,[lon lat])
setparm(‘ref_rad’,100)

where lon lat are the longitude and latitude coordinates of the point used as reference area with radius 100m

Please check that could be [lat lon] instead of [lon lat][ as I might be mistaken

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Thanks a lot for your efforts and time, I applied it and following the same error,

image

Please be sure you use the ps_plot function from previous stamps version.

Would you please to identify which of the following files should be replaced in the new version, using the old one?

image

the other thing, should they replace within matlab folder inside StaMPS?

Do not overwrite any file.
Just add to the matlab path the ones from previous version.

addpath(‘stamps_previous/matlab’,path)

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Does this affect the modification function already was done?

Well, you can remove the last matlab path with the command
rmpath(‘path_to_remove’)

The modified function needs to be run in step1, and you passed this point already.
Just be careful for the next time you may need it

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So, If I got your point well and now midnight here in Finland :face_with_head_bandage: I should swap between the two matlabs old one and the new modified one, is that right?

You can either do that, or try to merge them without lossing anything important in between.
Personally, I would suggested to swap between them, yes.

I hope that this would solve your problem. Let’s see