Hello, I have started doing interferometry using Sentinel InSAR data (S1A_IW_SLC__1SDV_20191016T121345_20191016T121412_029484_035ABB_373F, S1A_IW_SLC__1SDV_20191028T121345_20191028T121412_029659_0360C3_574E). When I have stared Coregistration using S1TOPS Coregistration There is an error " Java heap space ". I have tried several times but gotten a similar error and the output phase and intensity are blank. Please solve it.
“Java heap space” indicates insufficient memory.
The S1 TOPS Coregistration is a chain of multiple separate operators. RAM is often not sufficient to execute all steps in sequence, especially when you select many bursts in the Split operator.
I recommend to execute the steps separately, especially reduce the number of bursts as much as possible and make sure that you only use VV polarization.
Please have a look at this tutorial: DEM generation with Sentinel-1 - Workflow and challenges