S1 "Interferogram Formation" - strange error

Microwave Toolbox Interferometry
#1

Hi, I work with SNAP 2.0 beta.
I perform Coregistration (via back-geocoding) of two s1 SLCs without any problems (according to Tutorial for S-1 TOPS).
Result is good.
But after trying “Interferogram Formation” function, it ends up with following strange error:

org.esa.snap.core.gpf.OperatorException: Interferogram: org.jblas.NativeBlas.dgemm(CCIIID[DII[DIID[DII)V
at org.esa.snap.engine_utilities.gpf.OperatorUtils.catchOperatorException(OperatorUtils.java:386)
at org.esa.s1tbx.insar.gpf.CreateInterferogramOp.initialize(CreateInterferogramOp.java:197)
at org.esa.snap.core.gpf.internal.OperatorContext.initializeOperator(OperatorContext.java:499)
at org.esa.snap.core.gpf.internal.OperatorContext.getTargetProduct(OperatorContext.java:278)
at org.esa.snap.core.gpf.Operator.getTargetProduct(Operator.java:357)
at org.esa.snap.core.gpf.GPF.createProductNS(GPF.java:311)
at org.esa.snap.core.gpf.GPF.createProduct(GPF.java:286)
at org.esa.snap.core.gpf.GPF.createProduct(GPF.java:265)
at org.esa.snap.graphbuilder.rcp.dialogs.SingleOperatorDialog.createTargetProduct(SingleOperatorDialog.java:173)
[catch] at org.esa.snap.graphbuilder.rcp.dialogs.SingleOperatorDialog.onApply(SingleOperatorDialog.java:288)
at org.esa.snap.ui.AbstractDialog.lambda$initUI$11(AbstractDialog.java:494)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:289)
at java.awt.Component.processMouseEvent(Component.java:6535)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6300)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4891)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4713)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2750)
at java.awt.Component.dispatchEvent(Component.java:4713)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

Thank you for advices…

Milan

1 Like
#2

Hi,

I have the same issue for a while. At first with the S1TBX version 2.0.2 and it’s still there after the update to version 3.
I’m using the data:
S1A_IW_SLC__1SSV_20150923T225704_20150923T225731_007848_00AF07_CE4D for master
S1A_IW_SLC__1SSV_20151017T225704_20151017T225731_008198_00B87A_FC00 for slave

and the subswath IW3

Have you found a solution in the meanwhile?

Best,
Martin

#3

hi,

whoa, I figured it out already before… the problem is not in SNAP,
actually not even in Java… in my case it was related to disk read/write
rights.
I use some special configuration, I forgot what exactly I had to change -
but definitely it was about writing right or maybe chmod (changing rights)
on the disk.

good luck!

milan

1 Like
#4

Hello everyone,
i am processing two sliced assembly s1-b dim products and i am getting the same error during the interferogram formation step, although coregistration looks fine.
Any clue about what i am doing wrong?
Thank you in advance

#5

Hi,

What exactly the step you are following?

#7

hello,
i have 4 slc products, named:
S1B_IW_SLC__1SDV_20161006T043822_20161006T043850_002381_004063_5C64.SAFE
S1B_IW_SLC__1SDV_20161006T043848_20161006T043914_002381_004063_6343.SAFE
S1B_IW_SLC__1SDV_20161018T043822_20161018T043850_002556_004519_6A65.SAFE
S1B_IW_SLC__1SDV_20161018T043847_20161018T043914_002556_004519_A49F.SAFE

First, i do slice assembly for each pair of products of the same date. Then, i perform topsar-coregistration for each swath for the two slice assembled products for the 2 dates (saved as .dim) and it completes succesfully. After that, i try to do interferogram formation and i get a error of org.esa.snap.core.gpf.OperatorException: Interferogram: org.jblas.NativeBlas.dgemm(CCIIID[DII[DIID[DII)V, as the one mentioned above

Thank you for your answer,

Elena

#8

Hi,

First of all do the similar date is ascending and descending?

And the secondly My answer that you should save the result as deramp and dmod

#9

All products are of descending pass. I have clicked on “output deramp and demode phase”, in the coregistration step, if i am getting this correctly.

#10

yes, But if all ascending why do use the same date?

#11

I perform slice assembly for each pair of :

(1) S1B_IW_SLC__1SDV_20161006T043822_20161006T043850_002381_004063_5C64.SAFE (DESC)
S1B_IW_SLC__1SDV_20161006T043848_20161006T043914_002381_004063_6343.SAFE (DESC)

and

(2) S1B_IW_SLC__1SDV_20161018T043822_20161018T043850_002556_004519_6A65.SAFE (DESC)
S1B_IW_SLC__1SDV_20161018T043847_20161018T043914_002556_004519_A49F.SAFE (DESC)

because my area of interest is quite large and in the middle of these two products. So after that i perform coreg for each subswath of
S1B_IW_20161006_Asm (1) and S1B_IW_20161018_Asm (2) pair. Did i miss something ?

#12

I would prefer if you like to follow my procedure,

To implement the processing separately and then make mosaic to your result

#13

ok, i will try your suggestions. But i am not sure i get in which point do i have to make the mosaic and what process should i use? maybe the S1-merge or not? Could you please be more specific about your procedure?
Above all, i would like to thank you a lot. I really appreciate your answer.

#14

Process each pear of your product independently until to get the result of displacement, and then you could create the mosaic,

Other important issue if you continue with slice assembly I think you could face unwrapping problem and ramps jumping, and this case you should increase the GCP and this is the only solution with the SNAP,

#15

ok, i started my processing this way, as you suggest, but i thought there would be an incorrect result if i mosaic the 4 final displacement results! That’s why i came up with the idea of slice assembly. So, i will follow your suggestions.

Thank you again, this is totally helpful.

#16

It turned out that a library was missing. After installing the packet “libgfortran3” Interferogram formation runs fine.

Franz.