SARPROZ © | jaroslav | Activity https://www.sarproz.com/members/jaroslav/activity/ Activity feed for jaroslav. Fri, 24 Apr 2026 13:15:03 -0500 https://buddypress.org/?v= en-US 30 hourly 2 904691ffe3a9ad8e58fbc595ccacd268 jaroslav started the topic Reading AutoConnex.mat file manually in the forum Sarproz Forum https://www.sarproz.com/groups/sarproz-group/forum/topic/reading-autoconnex-mat-file-manually/ Mon, 19 Jun 2023 10:29:01 -0500 In APS processing module if Reference point is set to “Auto”, then Sarproz suggests 25 points to choose from.
I assumed, that if saved, reference point candidates shall be found in AutoConnex.mat file. Looking through file structure, I couldn’t locate said points myself, and thus I’m asking for guidance.
Am I searching through correct file?…[Read more]

]]> 92bdd374dae74312fa165e15fe9c2106 jaroslav started the topic APS estimation errors in the forum Sarproz Forum https://www.sarproz.com/groups/sarproz-group/forum/topic/aps-estimation-errors/ Wed, 28 Mar 2018 11:12:47 -0500 Hello everyone,
I have encountered a bunch of errors while estimating the APS.
The graph seems to be coherent enough, but some points are disconnected.
Is it mandatory in this case to refine my graph. Is there another may to resolve those errors?

Thank you.

]]> b5b7e8c9d89d35ccef28aea51a2d8ab2 jaroslav replied to the topic New Update in Sentinel TOPS Module in the forum Sarproz Forum https://www.sarproz.com/groups/sarproz-group/forum/topic/new-update-in-sentinel-tops-module/#post-2859 Thu, 22 Feb 2018 10:11:38 -0500 Hello Yuxiao, thank you for this great update.
I takes a couple of weeks for precised orbit files to arrive, does it mean, that new co-registration method can’t be used with newest images?

Jaroslav

]]> 57f3e40ce80b1773b013454612945972 jaroslav started the topic Undo step in the forum Sarproz Forum https://www.sarproz.com/groups/sarproz-group/forum/topic/undo-step/ Thu, 01 Feb 2018 14:30:01 -0500 Hello!
Is it possible to undo some processing steps?
I am particularly interested to undo “Residual fringes estimation and removal” in case it didn’t gave the expected effect.

j

]]> 566ccc2ae9425938ec6e7435cda8b5ff jaroslav replied to the topic Custom mask generation with multi geometry doesn't work in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/custom-mask-generation-with-multi-geometry-doesnt-work/#post-2569 Wed, 01 Nov 2017 11:21:54 -0500 Sure, a have attached a sample kml file.
Thank you!

]]> 52c6066c24187eb1c05e07d566baed0c jaroslav started the topic Custom mask generation with multi geometry doesn't work in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/custom-mask-generation-with-multi-geometry-doesnt-work/ Tue, 31 Oct 2017 14:47:14 -0500 Hello!
In custom mask generation module, if I load a kml file containing MultyGeometry object, then the software generates an empty mask.
Is there a way to generate one mask for two different polygons?

Jaroslav

]]> a5e2c2e358562801678133cc662d26b1 jaroslav replied to the topic Set orbits -> index exceeds matrix dimensions in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/set-orbits-index-exceeds-matrix-dimensions/#post-2529 Mon, 16 Oct 2017 12:38:20 -0500 Hello,
The problem has really gone by itself. Thank you for assistance.
If this kind of error happens again, do I just wait a couple of days for this error to be gone?

Jaroslav

]]> 37f86918b8a6ba96f02bf5a27d7feb4d jaroslav replied to the topic Set orbits -> index exceeds matrix dimensions in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/set-orbits-index-exceeds-matrix-dimensions/#post-2527 Mon, 16 Oct 2017 05:58:17 -0500 Sorry for late response.
The of the file, i have found there: S1B_OPER_AUX_RESORB_OPOD_20171001T085309_V20171001T040012_20171001T071742.EOF

Jaroslav

]]> 7e9273cc4bed7969fef9c691d10e6be9 jaroslav replied to the topic Set orbits -> index exceeds matrix dimensions in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/set-orbits-index-exceeds-matrix-dimensions/#post-2524 Fri, 13 Oct 2017 06:09:16 -0500 Tenth directory was empty, however I suggest, that you kept in mind ninth one.
There was only one file: S1A_OPER_AUX_RESORB_OPOD_20170925T091232_V20170925T040053_20170925T071823.EOF

Jaroslav

]]> a94d0d4d2578d8667b493ea06c7b40ab jaroslav started the topic Set orbits -> index exceeds matrix dimensions in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/set-orbits-index-exceeds-matrix-dimensions/ Thu, 12 Oct 2017 13:42:49 -0500 Hello!
During setting orbits for stack of Sentinel-1 images I have encountered an error.
I didn’t succeed to guess the reason myself, so I’ve decided to send an error logs.

Jaroslav

]]> 3c8b2d237137cb595d36a81003035147 jaroslav replied to the topic Sentinel-1 co-registration warnings in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/sentinel-1-co-registration-warnings/#post-2187 Tue, 30 May 2017 06:52:44 -0500 Hi Yuxiao,
Doesn’t master choice influence co-registration process a lot? I have often noticed, that outcome may be significantly improved just by choosing right master.
Additionally, I’d like to ask about Sentinel master choice methodology. Usually, master is chosen such, that the dispersion of the perpendicular baseline is as low as possible,…[Read more]

]]> c94115bd505000953c3a84cc625e59c6 jaroslav replied to the topic Sentinel-1 co-registration warnings in the forum Sarproz Forum https://www.sarproz.com/groups/sarproz-group/forum/topic/sentinel-1-co-registration-warnings/#post-2181 Mon, 29 May 2017 12:33:46 -0500 Hello,
I didn’t actually completely overcome this issue yet.
However, the master choice seems to help sometimes. In cases of problematic co-registration I usually try to manually evaluate image list in order to exclude the most noisy ones and choose the most contrast image as a master.
Somebody, correct me if I’m wrong, please.

]]> 5bd1b16ce0467affcbc3170a51bdd4ca jaroslav started the topic Master extraction error in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/master-extraction-error/ Mon, 10 Apr 2017 09:54:57 -0500 Hello!
I’m trying to co-register Sentinel images with “Max. Area” checked. I always get error message, that matrix exceeds dimensions.

]]> 7fdf73dbcee2d0fe754f17e476b0329c jaroslav started the topic Sentinel-1 co-registration warnings in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/sentinel-1-co-registration-warnings/ Thu, 02 Mar 2017 06:59:26 -0500 Hello everyone!
During co-registration of my dataset I often get a warning, my area of interest doesn’t have enough coherence.
WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!!
Your AOI does not have enough coherence for accurate subpixel coregistration!!!
A linear azimuth ramp may appear on your interferograms as the result!!!…[Read more]

]]> dc8b5b69eab53ab77f93fc83c8b8dd5a jaroslav started the topic Sentinel-1 co-registration warnings in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/sentinel-1-co-registration-warnings/ Thu, 02 Mar 2017 06:59:26 -0500 Hello everyone!
During co-registration of my dataset I often get a warning, my area of interest doesn’t have enough coherence.
WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!!
Your AOI does not have enough coherence for accurate subpixel coregistration!!!
A linear azimuth ramp may appear on your interferograms as the result!!!…[Read more]

]]> bf0b6275c923a0b771086e2d3dea5fe6 jaroslav started the topic Sentinel-1 co-registration warnings in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/sentinel-1-co-registration-warnings/ Thu, 02 Mar 2017 06:59:26 -0500 Hello everyone!
During co-registration of my dataset I often get a warning, my area of interest doesn’t have enough coherence.
WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!!
Your AOI does not have enough coherence for accurate subpixel coregistration!!!
A linear azimuth ramp may appear on your interferograms as the result!!!…[Read more]

]]> fb878e8d5e3cdcdadb8532a5bedc2571 jaroslav started the topic Sentinel-1 co-registration image shift in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/sentinel-1-co-registration-image-shift/ Thu, 09 Feb 2017 15:02:57 -0500 Hello!
It often happens, that Sentinel doesn’t take pictures of an exactly same place. One-two burst difference may take place.
I am wondering, if two pictures overlap covers area, that I’m interested in, what is the maximum allowed image shift, so that co-registration can be trusted?

]]> c9600837131d44aaead486df2b6d05c7 jaroslav started the topic Invalid SRTM file in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/invalid-srtm-file/ Thu, 02 Feb 2017 10:44:58 -0500 Hello,
While getting contents of Sentinel images I’ve got an error message that
file /home/user/sarproz/kroodi_160/../SRTM/N59E024.hgt is missing. Trying to download it

file /home/user/sarproz/kroodi_160/../SRTM/N59E024.hgt correctly downloaded

An error occurred and was saved in the file lasterror.mat, directory…[Read more]

]]> 375b83bc86c39bb05d83f1fd727e7079 jaroslav started the topic Co-registration evaluation in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/co-registration-evaluation/ Tue, 18 Oct 2016 07:30:43 -0500 Hello!
Sometimes while co-registration I get a message with multiple warnings above and below it. It usually happens if I try to co-register too small or too noisy area.
Could you please explain how does the software evaluate the quality of co-registration or where can I read about this?

Jaroslav

]]> 167b890809348f685fbcbb0c10a74c8f jaroslav replied to the topic Getting Sentinel-1 product contents problem in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/getting-sentinel-1-product-contents-problem/#post-1915 Tue, 04 Oct 2016 12:20:16 -0500 I’d be glad to, how can I contact you personally?

Jaroslav

]]> b42095c3bfced14e52419fb0f98d504a jaroslav replied to the topic Getting Sentinel-1 product contents problem in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/getting-sentinel-1-product-contents-problem/#post-1913 Mon, 03 Oct 2016 12:23:13 -0500 Hi Yuxiao,
I have updated the software, but problem still exists. Once I delete orbit files for some month, I will get errors for every image from deleted month. Broken orbits seem to be downloaded.
I can generate last error and log files for each case, if needed.

Jaroslav

]]> 4ec4e3c5042ccf85bdc56718bc6737d8 jaroslav started the topic Improving geocoding results of Sentinel data in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/improving-geocoding-results-of-sentinel-data/ Fri, 30 Sep 2016 13:22:52 -0500 Hello again!
I’d like to possibly precise geocode my results. I remember, that you suggested to manually choose ground control point, but because of Sentinel’s resolution even with manual intervention I can’t put my data together with geo coordinates. There is often some shift. It also doesn’t seem to be possible to use external DEM for ground…[Read more]

]]> 7781f44122d91bb770b3c9cf80d09632 jaroslav replied to the topic Getting Sentinel-1 product contents problem in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/getting-sentinel-1-product-contents-problem/#post-1907 Fri, 30 Sep 2016 08:38:55 -0500 Hello,
Excuse me for late response. I have added missing log file.
Deleting the orbit file from ORBITS/S1A/MM didn’t help. Moreover, every image failed, if I had deleted its orbit file. I am also including last error file with log for error, that occurred after deleting an orbit file.

Jarolav

]]> 7781f44122d91bb770b3c9cf80d09632 jaroslav replied to the topic Getting Sentinel-1 product contents problem in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/getting-sentinel-1-product-contents-problem/#post-1907 Fri, 30 Sep 2016 08:38:55 -0500 Hello,
Excuse me for late response. I have added missing log file.
Deleting the orbit file from ORBITS/S1A/MM didn’t help. Moreover, every image failed, if I had deleted its orbit file. I am also including last error file with log for error, that occurred after deleting an orbit file.

Jarolav

]]> 793d5c554702ab83b7248babf1afc463 jaroslav started the topic Getting Sentinel-1 product contents problem in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/getting-sentinel-1-product-contents-problem/ Thu, 29 Sep 2016 11:05:36 -0500 Greetings!
I was trying to get contents for downloaded stack. The problem occured while downloading precise orbits. An attempt to download an orbit file for one of the products ended with fatal error. If I remove problematic product, then everything works fine.
md5sum is correct and I was able to open and process this file with another program, so…[Read more]

]]> 793d5c554702ab83b7248babf1afc463 jaroslav started the topic Getting Sentinel-1 product contents problem in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/getting-sentinel-1-product-contents-problem/ Thu, 29 Sep 2016 11:05:36 -0500 Greetings!
I was trying to get contents for downloaded stack. The problem occured while downloading precise orbits. An attempt to download an orbit file for one of the products ended with fatal error. If I remove problematic product, then everything works fine.
md5sum is correct and I was able to open and process this file with another program, so…[Read more]

]]> 793d5c554702ab83b7248babf1afc463 jaroslav started the topic Getting Sentinel-1 product contents problem in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/getting-sentinel-1-product-contents-problem/ Thu, 29 Sep 2016 11:05:36 -0500 Greetings!
I was trying to get contents for downloaded stack. The problem occured while downloading precise orbits. An attempt to download an orbit file for one of the products ended with fatal error. If I remove problematic product, then everything works fine.
md5sum is correct and I was able to open and process this file with another program, so…[Read more]

]]> 3f74c5569d660631daeac53c509bc102 jaroslav started the topic Sentinel-1 incidence angle in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/sentinel-1-incidence-angle/ Fri, 09 Sep 2016 13:28:37 -0500 Hello everyone,
I would like to ask if there is a way to get incidence angle value for each pixel of each image.

Thank you

]]> 0d29474dd2184ce349b1a807d80797c9 jaroslav replied to the topic Sentinel-1 oversampling in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/sentinel-1-oversampling/#post-1831 Fri, 26 Aug 2016 12:55:55 -0500 Hi Yuxiao,
I just got an advice, that oversampling could improve the results, and could not though, so I wanted to try it.
Since it’s neither likely to help, nor supported in SARPROZ, I don’t see a reason to raise a dust.

Jaroslav

]]> 96e94b7578b9c707165779079b85de7f jaroslav started the topic Sentinel-1 oversampling in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/sentinel-1-oversampling/ Fri, 26 Aug 2016 06:50:34 -0500 Hello,
I wanted to oversample my Sentinel-1 data, but got message, that oversampling for Sentinel-1 is not supported.
Is it not implemented yet or just a tomporary problem?

Regards,
Jaroslav

]]> 3a4b9e4db26f03da1b8ee8459406171d jaroslav became a registered member https://www.sarproz.com/activity/p/1274/ Wed, 24 Aug 2016 12:19:30 -0500 0