Radiometric terrain flattening


#1

this is the error showing,so what should i do


#2

i have perform following operation before running terrain correction
1.orbit file
2. calibration beta nought
3.slice assembly
4.subset
5.multilook


#3

you have to deburst after calibration.


#4

sir but the deburst is valid for SLV product?
i have run deburst but its poping an error that "deburst is for SLV data


#5

sorry, I didn’t see that you are working on a GRD product.
Then why do you use the slice assembly?


#6

my Area lie in two scene of sentinal 1A data , so to mosaic both data i have done slice assembly.


#7

I think in this case you first have to process each scene individually and then merge them together.


#8

in this sense i have to perform
1.orbit file
2.calibration beta nought
3.terrain flatnning
for every scene sir
but sir i have a question that can i perform slice assembly after the above mention steps


#9

i have done for each scene but its also showing the same above error which i have uploaded


#10

have you selected Beta0 as the input of Terrain Flattening?


#11

yes sir i have done the same


#12

the only thing I could think of (based on your screenshots) would be skipping the multi-looking as Flattening works on slant geometries . You also made various subsets. If leaving out the multi-looking doesn’t work , try to make only one subset before flattening.


#13

okay
sir am i following the right process


#14

Hi sir. i have the same problem. i downloaded and are working on a GRD product of sentinel 1.


i have perform following operation before running terrain correction

  1. Thermal noise removal
  2. Apply Orbit file
  3. Calibration to Beta0
  4. Speckle filtering
  5. Radiometric terrain flattening