{"artifact_id":"L1-109","layer":"L1","title":"Polarimetric SAR (PolSAR) — full-polarimetric decomposition","domain":"Remote Sensing","sub_domain":"Polarimetric scattering analysis","physics_fingerprint":{"L_DAG":3.8,"title":"Polarimetric SAR (PolSAR) — full-polarimetric decomposition","domain":"Remote Sensing","carrier":"radio_wave","primitives":["L.emit.polarized_chirp","L.scattering_matrix","L.polarimetric_decompose","int.spatial"],"sub_domain":"Polarimetric scattering analysis","noise_model":"speckle","problem_class":"linear_inverse","solution_space":"polarization_decomposition_map","difficulty_delta":5,"integration_axis":"spatial","sensing_mechanism":"polarimetric_sar"},"observable_profile":{"metric":"PSNR_dB","regime":"Existence of the recovered polarization decomposition map is guaranteed within the declared Omega bounds. Uniqueness holds on the measurement-supported subspace; out-of-support modes are controlled by the declared priors. Stability is moderately conditioned (kappa_eff ~= 16); polarization_crosstalk dominates the stability cliff; calibration_drift and the remaining mismatch parameters contribute higher-order bias terms. Multiplicative speckle (rayleigh amplitude / exponential intensity) sets the irreducible data-fidelity floor, while TV / wavelet-sparsity / deep priors stabilise recovery at the ill-conditioned end of Omega.","secondary":"SSIM"},"size_tiers":{"center_spec":{"omega":{"H":4096,"W":4096,"SNR_dB":18.0,"pixel_m":5,"lambda_cm":5.6,"faraday_rotation":0.0,"calibration_drift":0.0,"polarization_crosstalk":-30,"speckle_coherence_loss":0.0},"input_format":"measurement_only","problem_class":"polsar","forward_operator":"polsar_forward","epsilon_fn_center":"22.0"},"omega_bounds":{"H":[1024,16384],"W":[1024,16384],"SNR_dB":[0.0,30.0],"pixel_m":[0.5,30],"lambda_cm":[0.5,30],"faraday_rotation":[0.0,30.0],"calibration_drift":[0.0,2.0],"polarization_crosstalk":[-40,-15],"speckle_coherence_loss":[0.0,0.5]},"epsilon_bounds":{"psnr_db":[5.0,40.0]},"allowed_problem_classes":["polsar"],"allowed_omega_dimensions":["H","W","pixel_m","lambda_cm","polarization_crosstalk","calibration_drift","speckle_coherence_loss","faraday_rotation","SNR_dB","polarization_crosstalk","calibration_drift","speckle_coherence_loss","faraday_rotation"],"allowed_forward_operators":["polsar_forward"]},"hardness_fn":{"type":"epsilon_fn","delta":5,"kappa":320,"metric":"PSNR_dB"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0x48a5b959081504d2b4e5055db65c316af4b9c1244080a512937aff843a755ab3","chain_tx_hash":"0x8de4592585236f7b32462e51fd40c9cbb1cae1fbcc27bdba779c34898aae9af3","chain_block":41554198}