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seweryn replied to the topic An automatic way to select reference point-APS estimation in the forum Sarproz Forum 1 year, 7 months ago

Thanks for your reply.

Could you please guide me what criteria are used to select the automatic reference points? before selecting the reference point we estimate the deformation rate and residual error for the arcs connecting each two points and saved in AutoConnex.mat. what parameters in Autoconnex.mat and how they used to select the reference…[Read more]

periz replied to the topic An automatic way to select reference point-APS estimation in the forum Sarproz Forum 1 year, 8 months ago

Sarproz automatically selects the best reference point according to a number of criteria, including those you mentioned.
Nevertheless, in the Sarproz course, we teach how to judge the goodness of the reference point and what to consider to pick up a good one. In most cases, the automatic one is good enough. In some particular situations, the…[Read more]

seweryn started the topic An automatic way to select reference point-APS estimation in the forum Sarproz Forum 1 year, 8 months ago

Hi SARPROZ developers,

I’m aware that in the APS estimation module, SARPROZ offers some auto selected reference points based on their coherence values and we need to define finally a reference point which leads to have maximum histogram around zero for both residual DEM error and deformation. I need to make it more automatic, without need to look…[Read more]

periz replied to the topic How to remove spaces in the main directory? in the forum Sarproz Forum 1 year, 8 months ago

data are in a folder like : “c:my project”
you should rename it in something like “c:myproject” or “c:my_project”

paulinanino started the topic How to remove spaces in the main directory? in the forum Sarproz Forum 1 year, 8 months ago

Hi,
I have a question, when I select the directory of an area that I chose in “Selection and Extraction” I get the following message:
The main directory contains spaces
please, remove spaces in the path

What should I do to solve it?
Thanks

paulinanino joined the group sarproz-group 1 year, 8 months ago

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periz replied to the topic Thermal expansion in APS estimation in the forum Sarproz Forum 1 year, 9 months ago

Hi,
this is a topic discussed in the course, which I strongly suggest you to take. Generally, better not to estimate the thermal expansion at the APS processing stage. Instead, use a linear model and then estimate the thermal expansion in the MISP module. However, if your area is full of high buildings, (and if you cannot manage picking up points…[Read more]

ssobuni started the topic Thermal expansion in APS estimation in the forum Sarproz Forum 1 year, 9 months ago

Dear Prof. Daniele,

I have a question regarding APS estimation. I want to take into account the thermal expansion for the estimation of the parameters. My study area is an urban area with lots of buildings, and the observation period is from 2019 to 2021. Should I use thermal expansion during the APS estimation or the sparse points processing…[Read more]

periz replied to the topic Load Temperature Data in the forum Sarproz Forum 1 year, 11 months ago

https://sarproz.com/manual/scegli_dataset.html

ssobuni started the topic Load Temperature Data in the forum Sarproz Forum 1 year, 11 months ago

Hi Professor. Is there a syntax that should be followed in inputting temperature data into .txt? Do we need to include the corresponding acquisition date for each temperature data? Thank you.

seweryn replied to the topic Reading Amplitude in dB And Phase in the forum Sarproz Forum 1 year, 11 months ago

Hi,

Thanks very much for your reply, I don’t have access to Matlab, so not sure the Pcodes is accessible for me to use leggi, could you please comment on this?

Thanks

pratyusha joined the group sarproz-group 1 year, 12 months ago

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periz replied to the topic Reading Amplitude in dB And Phase in the forum Sarproz Forum 2 years ago

Hi,
please check well the forum before posting questions
you can read all data in Matlab, images and interferograms. Just notice both are complex
Here you can find similar discussions and more links to some explanations about reading data using “leggi”
https://www.sarproz.com/groups/sarproz-group/forum/topic/reading-slc-images-in-matlab/
best

seweryn started the topic Reading Amplitude in dB And Phase in the forum Sarproz Forum 2 years ago

Dear PeriZ team,

I’d like to have amplitude values (intensity) for each pixel of my SLC images and convert them to amplitude-dB, would you please update me after coregistration, which files needed to be read in Matlab and how? or does SARPROZ has this functionality itself?

Also I need to read phase values of each image and each interferogram, so…[Read more]

periz replied to the topic Orbit heading angle in the forum Sarproz Forum 2 years ago

Hi Mahtab,
https://www.sarproz.com/groups/sarproz-group/forum/topic/orbit-heading/

regarding your formula, you should check the source from where you got it. and if you know the relation between two angles, you can simply replace the angle in the formula with the other one

here you can see similar discussions…[Read more]

mahtab started the topic Orbit heading angle in the forum Sarproz Forum 2 years ago

Hi,

I have a question about the orbit heading angle that SARPROZ gives us. In the SiteDescription.txt file for a time-series in Ascending orbit, I see AcqHeading: <<-169.7791>>.
Is this Acquisition Heading angle the orbit heading angle? if so, I expect for an ascending orbit, the orbit heading angle (αh) should be the blue angle as plotted in…[Read more]

nickm5611 joined the group sarproz-group 2 years ago

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