So does it also mean that, everytime if I change the graph e.g. from STAR to Full graph or MST, I should re-process the ASI for the current graph?

I had asked in the forum that I coregistered and processed a long time series dataset including 280 images, and then I changed the “Dataset.txt” to process different subsets individually in one project. Here is the question link:Big dataset processing

The 3 subset is 2010-2012,2012-2014,2014-2016, and the whole dataset is fr…[Read more]

As for “estimate as well as possible the non linear model”, I wonder what’s the difference between using a non-linear model built by myself(e.g. include deformation induced by temperature or water level) and using the “smart” non-linear model?

Additionally, I know that I can use higher threshold for point…[Read more]

By the way, the temporal coherence with index “_1” is the coherence before removing APS.

Looking forward to your reply. Thanks very much.

Best regards

I have some questions when using APS for my dataset. I got 83 images from Jan 2017 to Dec 2018 covering a center city.

As the city has many buildings, and the images are dense in 2 years, I assume the deformation will be non-linear, and for buildings there will be thermal deformation. So I use 3 different models in APS…[Read more]

1.

Cons: if your area is affected by temporal decorrelation/changes, keeping long temporal baselines will decrease the overall coherence.

For the cons you mentioned, I wonder if I individually corigester let’s say 50 images ; On the other hand, I select the same 50 images from the 280…

[Read more]

I’d like to ask when I have a big dataset of 280 images, and want to process it in several subsets, can I coregister all 280 images one time, and then just select less images to form differenct subsets?

Is it correct that just keep the images I want in ‘DataSet.txt’ to get the subset combination? I’ve tried by deleting half of the dataset…[Read more]

I have a set of data of the same area spaning 6 years, I seperate the data into 3 projects and process the data seperately. But since the data covers the same area, I want to select a same reference point for the 3 projects. Is it doable in sarproz and how to implement ?

Thank you so much for your help!

Best regards

What the 3 kinds of unwrapping method “standard”,”standard LS” and “standard LS LP” mean?

And how could I choose from them? do they have different cases in which behaves best?

Best regards,
Zoe

it works after I delete the imgs in dataset.txt.

Thank you so much !

Best regards,
Zoe

With respect to question 3, the “previous points” you pointed to are points selected by e.g. Amplitude dispersion index in APS?

Also, I have the confusion that, since QPS make use of DS points, shall I comprehend like this: The points selected with star graph are PS points, and points selected by other kind of…[Read more]

I have a question about change images graph. After I coregistered my stack , I want to only use connections of which the baseline are smaller than 600m. Just as the attached png shows. Therefore some imgs are not connected in the graph.

I’d like to ask can I continue with APS and MISP? will the following steps only process the connections…[Read more]

1. Does GAR always behave better than MISP? And do you recommend to use GAR in most cases?

2.You mentioned GAR could detect strong movements which exceeds wavelength, I…[Read more]

When I use the Graph Analysis module as well as read the manual, I come up with the following questions:

1. What the “Skip init Mask” means? When should it be checked?

2. As the NOTE 4 in manual says:”NOTE 4. in this module you can optionally save a time series object. However, for this purpose the atmosphere should have already been…[Read more]

I have an additional question. As the manual says：“In case of 2 sensors analysis, two different Refl Maps are processed and saved. They are called respectively MeanFirst and MeanSecond”.

In case of different sensors, is it possible to generate only 1 mean amplitude image for the common AOI？ How to do it ？

thank you again for your…[Read more]

How can I generate a mean amplitude image after the PS stack images are co-registered？

Thank you for your help！

best regards,
Zoe

I have a further question here: For most cases, I have no prior knowledge of whether the deformation is linear or not. Then should I choose linear model first or nonlinear model first?

As I…[Read more]

When I use the non-linear deformation processing, I got some questions even after reading the related discussions on the forum. Hope I can get your answers.

1、In sarproz, if “smart” is used, then linear deformation won’t be estimated. I want to know, is the linear deformation phase firstly removed from the interferometricc phase, and n…[Read more]

But how can I’ve never used the compiled version yet. Could you please tell me how to open the compiled version, and how to luanch the co-registration in more detail ?

Best regards

is this possibly a compatibility problem ?

I’m dealing with a Sentinel-1A dateset, but the co-registration failed.

The matlab reports :

Warning: Could not find appropriate function on path loading function handle C:Program FilesMATLABR2018atoolboximagesimagesprivateresampsep.mexw64>resampsep

Attached are the error files.

How can I get the problem solved?

Thank you very much for the answer, I updated the software and the coregistration work successfully.But I didn’t find the log file for coregistration.

Also as I just complete the coregistration, although the matlab reports that the coregistration was concluded succesfully, I saw that for one image there is warning information. I put…[Read more]

I encountered with these warnings in the coregistration step for sentinel1-A.

Could you please tell me the reason and how to correct it ?

Thank you so much.

I’m a user at univeristy. I came across the failure in downloading updates. I want to ask for the windows version, how to install the update software after downloading the psftp.exe ?