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Use the most recent compressed SLC as output for LAST_PER_MINISTACK #513

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merged 2 commits into from
Jan 7, 2025
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Use the most recent compressed SLC as output for LAST_PER_MINISTACK #513

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05c0545
Use the most recent compressed SLC as output for `LAST_PER_MINISTACK`
scottstanie Dec 8, 2024
5f4fcac
fix missing path
scottstanie Dec 10, 2024
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12 changes: 10 additions & 2 deletions src/dolphin/stack.py
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Original file line number Diff line number Diff line change
Expand Up @@ -465,26 +465,34 @@ def plan(

if compressed_idx is not None:
compressed_reference_idx = compressed_idx
output_reference_idx = self.output_reference_idx
elif self.compressed_slc_plan == CompressedSlcPlan.ALWAYS_FIRST:
# Simplest operational version: CompSLCs have same base phase,
# but different "residual" added on
# We use the `output_reference_idx`, 0 by default, but this index
# may be passed in if we are manually specifying an output
compressed_reference_idx = self.output_reference_idx
output_reference_idx = self.output_reference_idx
elif self.compressed_slc_plan == CompressedSlcPlan.FIRST_PER_MINISTACK:
# Like Ansari, 2017 paper: each ministack is "self contained"
compressed_reference_idx = num_ccslc
# Ansari, 2017 also had output_reference_idx = num_ccslcs, and
# use the "Datum Adjustment" step to get outputs relative to day 0
# used the "Datum Adjustment" step to get outputs relative to day 0
# Here, we'll use 0 (or manually specifed)
output_reference_idx = self.output_reference_idx
elif self.compressed_slc_plan == CompressedSlcPlan.LAST_PER_MINISTACK:
# Alternative that allows sequential interferograms across ministacks
compressed_reference_idx = -1
# For this, we'll always use the most recent compressed SLC as output
# reference so that we can connected stacks, but minimize the temporal
# baseline of interferograms we form
output_reference_idx = num_ccslc - 1

cur_ministack = MiniStackInfo(
file_list=combined_files,
dates=combined_dates,
is_compressed=combined_is_compressed,
output_reference_idx=self.output_reference_idx,
output_reference_idx=output_reference_idx,
compressed_reference_idx=compressed_reference_idx,
output_folder=cur_output_folder,
)
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