{"artifact_id":"L1-108","layer":"L1","title":"Interferometric SAR (InSAR) — deformation + DEM","domain":"Remote Sensing","sub_domain":"Coherent SAR interferometry","physics_fingerprint":{"L_DAG":4.2,"title":"Interferometric SAR (InSAR) — deformation + DEM","domain":"Remote Sensing","carrier":"radio_wave","primitives":["L.emit.chirp","S.scan.platform","L.interferometric_phase","L.phase_unwrap","int.spatial"],"sub_domain":"Coherent SAR interferometry","noise_model":"speckle","problem_class":"nonlinear_inverse","solution_space":"2D_deformation_or_DEM","difficulty_delta":5,"integration_axis":"temporal","sensing_mechanism":"insar_coherent_interferometry"},"observable_profile":{"metric":"PSNR_dB","regime":"Existence of the recovered 2D deformation or DEM is guaranteed within the declared Omega bounds. Uniqueness is local rather than global (non-convex landscape); convergence depends on initialisation and priors. Stability is moderately conditioned (kappa_eff ~= 25); atmospheric_phase_screen dominates the stability cliff; baseline_error 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":8192,"W":8192,"SNR_dB":20.0,"pixel_m":3.0,"coherence":0.8,"lambda_cm":5.6,"baseline_m":200,"baseline_error":0.0,"temporal_decorrelation":0.0,"atmospheric_phase_screen":0.0},"input_format":"measurement_only","problem_class":"insar","forward_operator":"insar_forward","epsilon_fn_center":"20.0"},"omega_bounds":{"H":[1024,32768],"W":[1024,32768],"SNR_dB":[0.0,30.0],"pixel_m":[0.3,30],"coherence":[0.2,1.0],"lambda_cm":[0.5,30],"baseline_m":[50,2000],"unwrap_error":[0.0,0.3],"baseline_error":[0.0,10.0],"temporal_decorrelation":[0.0,0.8],"atmospheric_phase_screen":[0.0,0.5]},"epsilon_bounds":{"psnr_db":[5.0,40.0]},"allowed_problem_classes":["insar"],"allowed_omega_dimensions":["H","W","pixel_m","lambda_cm","baseline_m","coherence","SNR_dB","atmospheric_phase_screen","baseline_error","temporal_decorrelation","atmospheric_phase_screen","baseline_error","temporal_decorrelation","unwrap_error"],"allowed_forward_operators":["insar_forward"]},"hardness_fn":{"type":"epsilon_fn","delta":5,"kappa":500,"metric":"PSNR_dB"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0x8778d2e8e3c4dfc0da39beca833fd00fda4773f64c62efcbea3cdb4791dbf79e","chain_tx_hash":"0x5e83f585a47652592337dae02bef3b468965795b0c248ae0c2bc3df6d38fcd56","chain_block":41554198}