How to Convert the GPS vertical displacement to LOS displacement?

suribabu · October 13, 2021, 9:04am

I want to Convert GPS vertical Displacement to LOS displacement. Please help me

mengdahl · October 13, 2021, 9:15am

You will need to project the displacement vector on the LOS vector.

suribabu · October 13, 2021, 9:22am

Dear Mengdahl,
In my study region only descending SAR data is available, using that data I calculated PS-InSAR LOS displacements. The problem is for calculating the SAR LOS to Vertical we need both ascending and descending orbit data, that’s way I want to convert my GPS vertical velocities to SAR LOS for better comparison.

Please suggest me is it correct or not?

mengdahl · October 13, 2021, 9:53am

Lateral movement on the GNSS-receiver can also have a LOS-component, so I guess you need to project the total movement vector and not just the vertical part.

suribabu · October 13, 2021, 10:56am

Is there any publications regarding this topic?