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Thanks for your reply.

Dear Yuxiao,
After Downloading and replacing with correct orbits it worked.
Thank you.

when you zoom to the maximum resolution as you say you see dots and then a homogeneous blue. It means you have downsampled/filtered your data to the point that you don’t see the original points anymore. When this happens, inevitably you are comparing two different things: original data and filtered/downsampled one. If the colors don’t match the…[Read more]

Both color bars are attached.

can you post both colorbars?

Thanks for your reply.

I zoomed to the maximum resolution but still the colors are different as you can see in the attachment.

In your data:

20161007T051857_20161007T051924 means the data is taken at 2016-10-07 05:18~05:19 UTC.

In your orbit:

20161007T112543_V20160916T225943_20160918T005943 means the orbits cover the period from 2016-09-16 22:59 UTC to 2016-09-18 00:59 UTC. 20161007 merely means the date that this orbit file is released (usually 21 days after the data…[Read more]

Dear Yuxiao,

I tried “set orbits” after placing manually downloaded orbits in corresponding folder. Please find the attachment of screen shots below. Did I download the wrong file ? For S1B product S1B_IW_SLC__1SDV_20161007T051857_20161007T051924_002396_0040C9_0BD2.zip
I downloaded precise orbit…[Read more]

If it is a common shift for ALL the points, then please check well your reference point (assuming your reflectivity map is geocoded correctly).

If the shifts for different points are different, then, as discussed above, it is highly likely a height estimation error issue. The right approach should be to estimate the point height as good as…[Read more]

Did you “set orbits” again after you downloaded the orbits manually and placed in corresponding folders?

Please note that S1A(S1B) means either ORBITS/S1A/2018/05/…. or ORBITS/S1B/2019/12/….

If it still does not work please print-screen me the path of the orbits.

Q

UPD. Problem is solved.

Hi Mahtab,
colors are the same, but you cannot compare a continuous image with black-circled dots. The effect is obviously slightly different. Moreover, the two results are differently downsampled by googleearth. you have to look at them locally at the maximum resolution. there you will see that colors are the same
best

thanks again periz for good paper

if you select all pixels in an area, all those pixels will be treated and exported.
you do not want all pixels in that area
you want all pixels with some additional thresholds, like temporal coherence higher than a value or whatever.
to apply multiple thresholds, use the “save selection” function in “scatter…[Read more]

Does SarProz have opputurnity to choose whitch plane to orthorectify exported points. Issue is that Firstly I geolocate refelctivity map. Ussualy it fits good in Google earh. After point protsessing, using H estimator for purpses that you are talked, points dont fit to reflectivity map. I have to move them by hand right place. So exlude that move…[Read more]

Let me add a little bit more of my own understanding.

First of all, the shift is caused by the fact that the height of that point you try to estimate (using PSI) is not corrected. You said it is DEM error, but the better saying should be “height estimation error”.

In Sentinel-1 data, the normal baseline is very small, hence the height ambiguity…[Read more]