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sensor: add Fucheng-1 parameters #1451

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Update sensor.py
Arctic-Ambrun Dec 28, 2025
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Arctic-Ambrun Dec 28, 2025
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Arctic-Ambrun Dec 28, 2025
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Arctic-Ambrun Dec 30, 2025
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Update sensor.py
yunjunz Feb 25, 2026
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yunjunz Feb 25, 2026
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Update sensor.py
yunjunz Feb 25, 2026
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24 changes: 24 additions & 0 deletions src/mintpy/objects/sensor.py
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@
'sen' : ['sen', 's1', 's1a', 's1b', 'sent1', 'sentinel1', 'sentinel1a', 'sentinel1b'],
'tsx' : ['tsx', 'terra', 'terrasar', 'terrasarx', 'tdx', 'tandemx'],
'uav' : ['uav', 'uavsar'],
'fc1' : ['fc1', 'fucheng', 'fucheng1'],
}

# duplicated in mintpy.cli.prep_gamma
Expand Down Expand Up @@ -478,6 +479,28 @@ def get_unavco_mission_name(meta_dict):
'noise_equivalent_sigma_zero': -22, # dB
}

# Fucheng-1
# launch date: 2023-06
# end date: operational
# Table 1 in Cai et al. (2025), https://doi.org/10.16356/j.1005‑1120.2025.04.005
# Table 1-2 in Han et al. (2025), https://doi.org/10.1016/j.measurement.2025.116876
# Tables in https://cn.spacety.com/SARDevelopment
FC1 = {
'altitude' : 505e3, # m
'orbit_inclination' : 97.3, # deg
'repeat_cycle' : 11, # day
# sar / antenna
'carrier_frequency' : 5.4e9, # Hz
'antenna_length' : 4.56, # m
'antenna_width' : 0.8, # m
'chirp_bandwidth' : 100e6, # Hz
'sampling_frequency' : 120e6, # Hz
'azimuth_pixel_size' : 13.96, # m, this is the ground azimuth pixel spacing, NOT on orbits!
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@yunjunz yunjunz Feb 25, 2026

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This parameter is much larger than antenna_length/2. Could you double-check the value for the SLC file?

'range_pixel_size' : 1.25, # m
'noise_equivalent_sigma_zero': -22, # dB
}



##-------------------- S-band --------------------##

Expand Down Expand Up @@ -786,6 +809,7 @@ def get_unavco_mission_name(meta_dict):
'rsat2' : RSAT2,
'rcm' : RCM,
'gf3' : GF3,
'fc1' : FC1,
# S-band
'hj1c' : HJ1C,
# L-band
Expand Down