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Enable Sentinel-1 EW SLC Processing #99

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Enable Sentinel-1 EW SLC Processing #99

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14 changes: 12 additions & 2 deletions src/rtc/h5_prep.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1619,12 +1619,22 @@ def get_range_azimuth_resolution(burst: Sentinel1BurstSlc):
-----
https://sentinels.copernicus.eu/web/sentinel/technical-guides/sentinel-1-sar/
products-algorithms/level-1/single-look-complex/interferometric-wide-swath
Values available in:
Sentinel-1 Product Definition,
Document Number: S1-RS-MDA-52-7440
S-1 MPC Nomenclature: DI-MPC-PB
S-1 MPC Reference: MPC-0239
IW SLC -> Table 7-5, EW SLC -> Table 7-8
'''

resolution_subswath_range_azimuth_dict = {
'IW1': [2.7, 22.5],
'IW2': [3.1, 22.7],
'IW3': [3.5, 22.6]
'IW3': [3.5, 22.6],
'EW1': [7.9, 43.7],
'EW2': [9.9, 44.3],
'EW3': [11.6, 45.2],
'EW4': [13.3, 45.6],
'EW5': [14.4, 44.0]
}

slant_range_resolution, azimuth_resolution =\
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16 changes: 11 additions & 5 deletions src/rtc/runconfig.py
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Expand Up @@ -264,20 +264,26 @@ def runconfig_to_bursts(cfg: SimpleNamespace):
'dual-pol': ['HH', 'HV']}
pols = mode_to_pols[cfg.processing.polarization]

# zip pol and IW subswath indices together
i_subswaths = [1, 2, 3]
# get the sensor acquisition mode from the filename
sensor_mode = os.path.basename(
str(safe_file)).split("_")[1].lower()

# set the number of subswaths based on the mode
subswaths = {"iw": [1, 2, 3], "ew": [1, 2, 3, 4, 5]}[sensor_mode]

# zip pol and IW/EW subswath indices together
pol_subswath_index_pairs = [(pol, i)
for pol in pols for i in i_subswaths]
for pol in pols for i in subswaths]

# list of burst ID + polarization tuples
# used to prevent reference repeats
id_pols_found = []

# loop over pol and subswath index combinations
for pol, i_subswath in pol_subswath_index_pairs:
for pol, subswath in pol_subswath_index_pairs:

# loop over burst objs extracted from SAFE zip
for burst in load_bursts(safe_file, orbit_file_path, i_subswath,
for burst in load_bursts(safe_file, orbit_file_path, subswath,
pol, flag_apply_eap=False):
# get burst ID
burst_id = str(burst.burst_id)
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