@bahaamohamadi
Active 4 months, 3 weeks ago-
periz replied to the topic PSInSAR Analysis in the forum Sarproz Forum 9 years, 3 months ago
Hi Ana.
the selection of points looks not good. so, the graph has few good connections and the result is quite bad.
if you are analyzing a 3×3 sqkm area and you have a GPS station at 8km distance you cannot do much.
dp -
periz replied to the topic Exporting products in the forum Sarproz Forum 9 years, 3 months ago
Sarproz has many ways to export results.
The two most common ones can be found in the “results exporting” frame in site processing: “extended geocoding” and “sparse geocoding”.
In the first case, you can choose between kml and geotiff formats. In the second case, the options are: csv and kml.
If you want to export sparse results (as those…[Read more] -
seppi-santiago started the topic Exporting products in the forum Sarproz Forum 9 years, 3 months ago
Hello,
I would like to know whether it is possible to export some of the estimated parameters (cumulative displacement, velocity and residual height) to geotiff and/or shapefile format. I had a look at the manual, at the software options and also at the other forum threads but I did not find anything.
Thanks in advance!
Santiago -
anarizka replied to the topic PSInSAR Analysis in the forum Sarproz Forum 9 years, 3 months ago
Dear Prof.Daniele
Another question.
I try to compare with GPS statiun (LIKNstatiun that I plotted in GE). This statiun have distance around 8km from my area. I think its shape almost same. So, Have I considered it or no?Best Regards,
Ana
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cnu_lee replied to the topic APS estimation in the forum Sarproz Forum 9 years, 3 months ago
Hi, Pro. Daniele,
(1) I’d like to know something about APS estimation.I used 32 scenes TerraSAR-X and Tandem-X images in all.The zip file contains the parameters of APS estimation and the results.I found the connection coherence is good,but the result of APS including “PS coherence after graph inversion and APS removal” are bad and the image…[Read more]
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periz replied to the topic some questions about APS processing and SPP processing in the forum Sarproz Forum 9 years, 3 months ago
1 and 3. When you work with Persistent Scatterers (without using weights, that is, without filtering) Sarproz does not need to generate and write interferograms. Interferograms may be processed if you want to see them or if you want to use filtered phase. If you choose to process your data with a QPS-like approach (that is, using the coherence as…[Read more]
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cnuhyl started the topic some questions about APS processing and SPP processing in the forum Sarproz Forum 9 years, 3 months ago
Dear Prof.Daniele
I have some questions about APS processing and SPP processing.
1.when I finish the APS processing and SPP processing I can’t find the interferograms. I want to know where are them or the processing do not produce them.
2.can you tell me some information abot the smart model?
3.I want to know the difference about the two kinds…[Read more] -
anarizka replied to the topic PSInSAR Analysis in the forum Sarproz Forum 9 years, 3 months ago
Dear Prof.Daniele
I have processed almost 3 square-kilometer area.
Hope you give me suggestion to increase good results.
How about my second question (GPS data). Could you explain it?Please, Find attach file below.
Best Regards,
Ana
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periz replied to the topic PSInSAR Analysis in the forum Sarproz Forum 9 years, 3 months ago
Hi Ana,
your result is not looking very good. How big is the area you are analyzing? can you plot the PSC graph with coherence-colored connections? Can you show us the reflectivity map and the coherence map?
dp -
periz replied to the topic PSInSAR Analysis in the forum Sarproz Forum 9 years, 3 months ago
Hi Ana,
your result is not looking very good. How big is the area you are analyzing? can you plot the PSC graph with coherence-colored connections? Can you show us the reflectivity map and the coherence map?
dp -
anarizka replied to the topic PSInSAR Analysis in the forum Sarproz Forum 9 years, 3 months ago
Dear Prof.Daniele
1. For make sure that PSInSAR correct processing, how many factor must be considered besides from the attach image?
And how about your opinion based on my results
2. From PSInSAR, Must I have GPS data for verification? Any likelihood below:
(a). I have GPS data but the statiun far away from my area (equal to 8km)
(b). I did…[Read more] -
periz replied to the topic APS estimation in the forum Sarproz Forum 9 years, 3 months ago
Hi Santiago,
1. you choose a parameter on which you want to place a threshold (more advanced option: building your own set of points through “save selection” in “scatter plots”, and select it as a real file here)
2. you choose the threshold
3. you choose if you want to make the selection of points sparser or not. If not, place DS=0, DL=0. If you…[Read more] -
seppi-santiago replied to the topic APS estimation in the forum Sarproz Forum 9 years, 3 months ago
Hello,
Could you offer me some guidance as for the Sparse Points Selection criteria in the APS tool?
I’m not very sure what each option means,
Thank you,Santiago
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anarizka replied to the topic PSInSAR Analysis in the forum Sarproz Forum 9 years, 3 months ago
Dear Prof.Daniele
I have done to choose Href, prof.
From the first step about geocoded refl map, I must re-process it again or no. Because from GCP selection, the SAR coordinat and Geo coordinat in GE it looks like match well.Please, find attach file below
Best Regards,
Ana
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periz replied to the topic PSInSAR Analysis in the forum Sarproz Forum 9 years, 3 months ago
Hi Ana,
from your geocoded refl map 11.jpg, I can tell you that it is not well geocoded. It looks shifted.
The Href is at the top of your 21.jpg. Currently, you see NaN inside the text box.
To know the value of the height, you need to sketch the SAR acquisition geometry, considering the incidence angle.
Do it, it’s a good exercise for…[Read more] -
anarizka replied to the topic PSInSAR Analysis in the forum Sarproz Forum 9 years, 3 months ago
Dear Prof.Daniele
To have point match in GE, I have done first step to choose GCP that align in SAR image. you can see in 1.jpg (attach file). I think its SAR image and GE match well. After I choose small area processing, the shifting problem still unsolved (2.jpg file). As far as processing, I still can not find where is the Href box located.…[Read more]
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periz replied to the topic ALOS-2 import in the forum Sarproz Forum 9 years, 3 months ago
yes it can
but since not many users tried it, it would be good if you would send us a feedback after trying
thx
dp -
yuyu started the topic ALOS-2 import in the forum Sarproz Forum 9 years, 3 months ago
Hi DP
I was wondering if SarProz could import ALOS-2 data?
Thanks -
ivca-cz replied to the topic residue values in the forum Sarproz Forum 9 years, 3 months ago
OK, thank you. I ve just discovered that the residue values in the CSV are also in mm, therefore they go up to plus minus lambda/4.
Ktemp (in the CSV) is in rad/deg or mm/deg? That could be the reason of problems.
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periz replied to the topic PSInSAR Analysis in the forum Sarproz Forum 9 years, 3 months ago
1. to have the points match in GE, you need 2 things
– first of all, you must have (previously) chosen a GCP that aligns your SAR data to external geographic features (as a DEM or as points selected in GE)
– secondly, if you are processing a small area, the reference point should have been previously processed in the “site processing”, and its…[Read more] - Load More