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periz replied to the topic Non-linear weighting meaning in APS processing panel in the forum Sarproz Forum 3 years, 3 months ago
Hi,
we did not publish anything on this topic. However, the concept is simple: is e.g. 0.7 coherence high or low? it depends! It depends on how many images are in your dataset, on the baseline distributions, it depends on the processing options you have chosen. So, firstly Sarproz runs some simulations to find reference numbers (m the minimum…[Read more] -
periz replied to the topic orbits file download manually in the forum Sarproz Forum 3 years, 4 months ago
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periz replied to the topic permanent scatter points on water is ok? in the forum Sarproz Forum 3 years, 4 months ago
We suggest you to take an InSAR course.
Please check the emails you received to know more about courses.
Best -
periz replied to the topic Ideal Imaging Mode and Parameters for Bridge Monitoring Application in the forum Sarproz Forum 3 years, 5 months ago
Hi Isaias,
the forum is not suitable for commercial consulting services.
Please contact us via email
Best regards -
periz replied to the topic APS processing in the forum Sarproz Forum 3 years, 5 months ago
the result is not bad, actually, it’s pretty ok
do not look at the value of the coherence in the temporal plot, that plot is useful only to look at the trend in time, to check whether there are some left signals that were not well modeled
more suggestions:
* u can take a lower threshold for the amplitude stability index, like e.g. 0.7. in this way…[Read more] -
periz replied to the topic Exporting time series for a subset area only in the forum Sarproz Forum 3 years, 6 months ago
In the time series module you can do mainly 2 things:
1. creating a new time series object, based on whatever set of points you want. For doing that (a) you need the data of the whole project to generate new time series and (b) you need to load the set of points using “load mask”. There you are free to create your custom point selection
2. loading…[Read more] -
periz started the topic Sarproz Release 2021.0 in the forum Sarproz Forum 3 years, 7 months ago
Dear all,
after more than one year of pandemic, lockdowns and all related issues and troubles, we want to summarize a bit what is going on about Sarproz.1. SARPROZ COURSES.
As you know, we have switched to an online remote mode for delivering Sarproz courses. Next SAR/InSAR Sarproz course will be held in June. Please write to courses at sarproz…[Read more] -
periz replied to the topic Spatial Ramps in the forum Sarproz Forum 3 years, 7 months ago
Hi Duminda,
to give you a proper advice we need to see your data. Please be patient a few days, it’s a busy time. Please write an email to support, we’ll get back to you soon.
Best -
periz replied to the topic in the forum Big dataset processing 3 years, 8 months ago
no.
ASI and reflectivity maps are calculated using the set of images of your dataset, independently from the images graph (which is something related to operations involving pairs of images)
this means, if you change the set of images, you have to reprocess ASI and REFL maps -
periz replied to the topic in the forum Big dataset processing 3 years, 8 months ago
if you select your points based e.g. on the amplitude stability index == ASI > 0.75 and you get the same amount of points in subsets A, B and C, the explanation is only one: ASI is the same in the 3 datasets.
Instead, for each subset you have to re-process the ASI so that you will get 3 quantities: ASI_A, ASI_B and ASI_C
best -
periz replied to the topic Incidence angle – SARPROZ compiled version in the forum Sarproz Forum 3 years, 8 months ago
Hi,
at the moment we do not have an option to generate a matrix of incidence angle values for all pixels, accessible from the compiled version. You can get it only using the pcodes, because it’s a low-level function. However, do you really need this value for all pixels? if you are not analyzing a huge area, probably an average value is enough. To…[Read more] -
periz replied to the topic Temporary PSI in the forum Sarproz Forum 3 years, 8 months ago
Hi,
here you can see how to process and check amplitude time series (part III): https://www.sarproz.com/utp-course-2012/
To use the result of the amplitude time series processing in the phase time series analysis, you just need to use the amplitude model as weight.
For a more complete discussion and explanation, the best way would be taking a…[Read more] -
periz replied to the topic Using external DEM source coregistration in the forum Sarproz Forum 3 years, 8 months ago
Hi,
generally speaking, read carefully this: https://sarproz.com/manual/Sarproz_errors_management.html
In your case, given this message: “get_master_pts: previous files available. Exiting. ”
start over the whole process again (don’t update the site, re-extract the master image)
best -
periz replied to the topic sentinel 1, problems with geocoding timeseries in the forum Sarproz Forum 3 years, 9 months ago
hi,
here some answers to your points
1) if you use the non-parametric approach (e.g. smart=5), the software does not estimate a linear trend. what you can export instead is the cumulative displacement
2) sorry, don’t understand your question
3) ‘External DEM and synthetic amplitude in SAR coordinates’ is a function to generate those products. you…[Read more] -
periz replied to the topic Coregistartion in the forum Sarproz Forum 3 years, 9 months ago
Hi,
1. you have an old software version, if you want you can get a more recent one with the manage version module
2. in some cases that might still be under investigation sentinel interferograms can be affected by phase jumps along the range direction between two adjacent bursts in azimuth. the message you got warns you of such a possible case
best -
periz replied to the topic Load temperature file in the forum Sarproz Forum 3 years, 9 months ago
hi
here you can see some explanations https://sarproz.com/manual/scegli_dataset.html
just import a text files with a column of values of temperature in Celsius degrees, one value for each image. Ideally, the temperature should be measured at the satellite acquisition time
best -
periz replied to the topic Problem with SARProz license file in the forum Sarproz Forum 3 years, 10 months ago
Hi,
when you get messages as:
* internet access failure
* to start the tool, an internet connection is required
it means, your network has problems, the software cannot access the servers to get the information to start.
it’s a network problem: either your internet provider, or your area, or your country or any other restrictions affecting your…[Read more] -
periz replied to the topic Problem with SARProz license file in the forum Sarproz Forum 3 years, 10 months ago
1. please read the forum rules. you must include logs and errors or we cannot help
2. please read through the fourm https://www.sarproz.com/groups/sarproz-group/forum/topic/error-in-main/
3. please update your sarproz version.
any further topics posted without checking the forum, without uploading enough infos, without updating the software will…[Read more] -
periz replied to the topic Problem with SARProz license file in the forum Sarproz Forum 3 years, 10 months ago
your network has problems.
change the network or use a VPN
best -
periz replied to the topic aps test problem in the forum Sarproz Forum 3 years, 11 months ago
This is a matlab MCR crash, happening while writing a file.
possible reasons:
* the disk is full
* the disk is corrupted
However, other explanations are possible as well. What’s the RAM of your system? Monitor its usage. Possible related reasons:
* RAM is over and you do not have a swap space and/or the swap space is not available/is corrupted
*…[Read more] - Load More