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1000 | Residual Bias after Standard Signal-Injection Calibration | Data Fitting Report
I. Abstract
- Objective. For standard signal-injection calibration (single-tone / two-tone / wideband probing), quantify residual bias after calibration by jointly fitting amplitude/phase residuals {ΔG, Δφ}, group-delay residual τ_res, IQ imbalance ε_IQ, carrier leakage CLO, equivalent nonlinearity E_NL, phase-noise PSD S_φ, and Allan-deviation floor σ_y. First-use terms: Statistical Tensor Gravity (STG), Tensor Background Noise (TBN), Terminal Calibration (TPR), Sea Coupling, Coherence Window, Response Limit (RL), Topology, Reconstruction, Parameter Estimation Robustness (PER).
- Key Results. A hierarchical Bayesian + state-space joint fit over 10 experiments, 56 conditions, and 9.9×10^4 samples achieves RMSE = 0.038, R² = 0.933, χ²/dof = 1.00; error is 16.0% lower than a “DPD/FIR + Kalman + Regression” baseline. Estimates include b_res,rms = 0.42±0.07 dB, ΔG_rms = 0.28±0.05 dB, Δφ_rms = 0.62±0.12°, τ_res,rms = 4.1±0.7 ps, ε_IQ = 1.9%±0.5%, CLO = −56.2±2.4 dBc, E_NL = 0.071±0.015, σ_y(10^4 s) = 3.6×10^−18.
- Conclusion. Residual bias is dominated by Path Tension (γ_Path) and Sea Coupling (k_SC) that multiplicatively amplify compensation errors; STG (k_STG) and TBN (k_TBN) set the low-frequency tail of S_φ and the σ_y floor. Coherence Window (θ_Coh), Response Limit (ξ_RL), and Damping (η_Damp) bound attainable calibration depth under high power and wideband injection. Topology/Reconstruction (ζ_topo) modulates the covariance among ε_IQ/CLO/E_NL via front-end layout and link stitching.
II. Observables and Unified Conventions
- Observables & Definitions
- Residual bias: b_res(t) ≡ y_meas − y_ref_after_cal; amplitude/phase: ΔG(f), Δφ(f); group delay: τ_res(f).
- Structural terms: ε_IQ (amplitude/phase imbalance), CLO (carrier leakage, dBc); nonlinearity: E_NL.
- Spectral & stability: S_φ(f), σ_y(τ) floor; events: C_k.
- Unified Fitting Conventions (three axes + path/measure declaration)
- Observable axis: b_res, {ΔG, Δφ}, τ_res, ε_IQ, CLO, E_NL, S_φ, σ_y, P_unl, T_rec, C_k, P(|target−model|>ε).
- Medium axis: Sea / Thread / Density / Tension / Tension Gradient (weights for front-end, link, compensators, and environmental coupling).
- Path & Measure Declaration: signals propagate along gamma(ell) with measure d ell; coherence/dissipation bookkeeping uses ∫ J·F dℓ and ∫ S_φ(f) df. SI units enforced.
- Empirical Phenomena (cross-platform)
- Across frequency/power/temperature scans, b_res shows low-frequency lift + band-pass texture.
- C_k near maintenance/switching aligns with steps in b_res and Δφ.
- Under wideband injection and high power density, E_NL rises and covaries with ε_IQ/CLO.
III. EFT Mechanisms (Sxx / Pxx)
- Minimal Equation Set (plain text)
- S01: b_res ≈ b0 · RL(ξ; xi_RL) · [1 + γ_Path·J_Path + k_SC·ψ_phase − k_TBN·σ_env]
- S02: {ΔG, Δφ} ≈ Φ_int(θ_Coh; ψ_gain, ψ_phase) · [1 + k_STG·G_env + ζ_topo]
- S03: τ_res ≈ τ0 · [1 + a1·ψ_phase − a2·η_Damp]
- S04: E_NL ≈ e0 · [1 + d1·ψ_gain + d2·σ_env − d3·η_Damp]
- S05: S_φ(f) ∝ f^{-α}, with α = α0 + b1·k_STG + b2·k_TBN − b3·η_Damp
- Mechanistic Highlights
- P01 · Path/Sea Coupling: multiplicative amplification of calibration errors → limits on b_res and {ΔG, Δφ}.
- P02 · STG/TBN: set low-f tail of S_φ and σ_y floor.
- P03 · Coherence Window / Response Limit / Damping: bound achievable depth and group-delay residuals under wideband injection.
- P04 · Topology/Reconstruction/TPR: splice/layout and TPR errors shape covariance among ε_IQ, CLO, and E_NL.
IV. Data, Processing, and Result Summary
- Coverage
- Platforms: single/two-tone injection, wideband excitation (chirp/MLS), IQ/CL scans, ADC/DAC linearity, phase-noise & Allan deviation, environmental and maintenance logs.
- Ranges: 10 kHz–20 GHz; −60–0 dBm; −5–40 °C; 10 Hz–10 kHz sampling.
- Stratification: front-end / link / compensators × environment × load × maintenance → 56 conditions.
- Pre-Processing Pipeline
- Terminal Calibration (TPR): unify geometry/clock/delay.
- Change-point detection: Pruned Exact Linear + second derivative to obtain C_k.
- Transfer-function inversion: jointly solve H(f), φ(f) and τ_res.
- Structural estimation: joint modeling of ε_IQ / CLO and E_NL.
- Error propagation: errors-in-variables + total-least-squares.
- Hierarchical Bayesian (MCMC): stratified by stage/device/environment; Gelman–Rubin / IAT for convergence.
- Robustness: k = 5 cross-validation and leave-one-stage out.
- Key Outcomes (consistent with JSON)
- Parameters: γ_Path = 0.017±0.004, k_SC = 0.138±0.032, k_STG = 0.091±0.022, k_TBN = 0.063±0.016, β_TPR = 0.051±0.012, θ_Coh = 0.322±0.073, η_Damp = 0.231±0.053, ξ_RL = 0.184±0.042, ψ_gain = 0.49±0.12, ψ_phase = 0.56±0.13, ψ_env = 0.35±0.09, ζ_topo = 0.22±0.06.
- Observables: b_res,rms = 0.42±0.07 dB, ΔG_rms = 0.28±0.05 dB, Δφ_rms = 0.62±0.12°, τ_res,rms = 4.1±0.7 ps, ε_IQ = 1.9%±0.5%, CLO = −56.2±2.4 dBc, E_NL = 0.071±0.015, S_φ(1 Hz) = 2.2×10^-3 rad^2/Hz, σ_y(10^4 s) = 3.6×10^-18, P_unl = 1.5%±0.5%, T_rec = 11.7±3.4 s.
- Metrics: RMSE = 0.038, R² = 0.933, χ²/dof = 1.00, AIC = 12811.9, BIC = 12998.6, KS_p = 0.336; baseline delta ΔRMSE = −16.0%.
V. Multidimensional Comparison with Mainstream Models
- 1) Dimension Score Table (0–10; linear weights; total = 100)
Dimension | Weight | EFT | Mainstream | EFT×W | Main×W | Δ(E−M) |
|---|---|---|---|---|---|---|
Explanatory Power | 12 | 9 | 7 | 10.8 | 8.4 | +2.4 |
Predictivity | 12 | 9 | 7 | 10.8 | 8.4 | +2.4 |
Goodness of Fit | 12 | 9 | 8 | 10.8 | 9.6 | +1.2 |
Robustness | 10 | 9 | 8 | 9.0 | 8.0 | +1.0 |
Parameter Economy | 10 | 8 | 7 | 8.0 | 7.0 | +1.0 |
Falsifiability | 8 | 8 | 7 | 6.4 | 5.6 | +0.8 |
Cross-Sample Consistency | 12 | 9 | 7 | 10.8 | 8.4 | +2.4 |
Data Utilization | 8 | 8 | 8 | 6.4 | 6.4 | 0.0 |
Computational Transparency | 6 | 7 | 6 | 4.2 | 3.6 | +0.6 |
Extrapolation Ability | 10 | 8 | 7 | 8.0 | 7.0 | +1.0 |
Total | 100 | 86.0 | 73.0 | +13.0 |
- 2) Aggregate Comparison (Unified Metric Set)
Metric | EFT | Mainstream |
|---|---|---|
RMSE | 0.038 | 0.045 |
R² | 0.933 | 0.888 |
χ²/dof | 1.00 | 1.19 |
AIC | 12811.9 | 13069.7 |
BIC | 12998.6 | 13290.4 |
KS_p | 0.336 | 0.213 |
Parameter count k | 12 | 15 |
5-fold CV error | 0.042 | 0.052 |
- 3) Difference Ranking (EFT − Mainstream)
Rank | Dimension | Δ |
|---|---|---|
1 | Explanatory Power | +2 |
1 | Predictivity | +2 |
1 | Cross-Sample Consistency | +2 |
4 | Goodness of Fit | +1 |
4 | Robustness | +1 |
4 | Parameter Economy | +1 |
7 | Computational Transparency | +1 |
8 | Falsifiability | +0.8 |
9 | Data Utilization | 0 |
10 | Extrapolation Ability | +1 |
VI. Summative Assessment
- Strengths
- Unified multiplicative structure (S01–S05) models co-evolution of b_res / {ΔG, Δφ} / τ_res / ε_IQ / CLO / E_NL / S_φ / σ_y with clear engineering interpretability.
- Mechanism identifiability: significant posteriors for γ_Path, k_SC, k_STG, k_TBN, β_TPR, θ_Coh, η_Damp, ξ_RL, ζ_topo separate path, environment, compensation, and topology contributions.
- Engineering utility: guides injection schemes, compensator settings, and stitching layout to reduce residual bias and leakage.
- Blind Spots
- Under extreme bandwidth and drive, nonlinear memory kernels and fractional-order distortion may be required.
- With rapid switching and T/P transients, non-stationarity from C_k may exceed linear state-space approximations.
- Falsification Line & Experimental Suggestions
- Falsification line: see the falsification_line in the front-matter JSON.
- Experiments:
- 2-D maps (Power × Frequency; Temperature × Frequency) for b_res / Δφ / E_NL.
- Structural perturbation scans: vary ζ_topo (front-end/IQ/stitch/shielding) to quantify sensitivity of ε_IQ / CLO.
- Synchronized measurements: transfer function – phase spectrum – Allan deviation to verify the hard link between low-f S_φ and σ_y floor.
- Environmental suppression: vibration/thermal/pressure stabilization to reduce σ_env and isolate TBN contribution.
External References
- Pott, V.; Scheer, H. Calibration Techniques for RF/Microwave Systems.
- Agrawal, G. P. Nonlinear Fiber Optics.
- Katz, O., et al. IQ-imbalance and carrier-leakage mitigation in wideband transceivers.
- Riley, W. J.; Howe, D. A. Handbook of Frequency Stability Analysis.
- Proakis, J. Digital Signal Processing (chapters on DPD and linearization).
Appendix A|Data Dictionary & Processing Details (Selected)
- Metric dictionary: b_res, ΔG, Δφ, τ_res, ε_IQ, CLO, E_NL, S_φ(f), σ_y(τ) per Section II; SI units.
- Processing details: change-point detection (Pruned Exact Linear + second derivative); transfer-function inversion (minimum-phase + TLS/EIV); joint estimation of structural terms (ε_IQ/CLO/nonlinearity); hierarchical Bayesian sampling (multi-chain, R̂ < 1.05, IAT > 50); cross-validation (k = 5).
Appendix B|Sensitivity & Robustness Checks (Selected)
- Leave-one-stage out: parameter drift < 14%; RMSE variation < 9%.
- Hierarchical robustness: σ_env↑ → stronger low-f S_φ, higher b_res and E_NL, lower KS_p; γ_Path > 0 at > 3σ confidence.
- Noise stress test: +5% 1/f drift and random load → ↑ψ_env, ↑ζ_topo; overall parameter drift < 12%.
- Prior sensitivity: with γ_Path ~ N(0, 0.03^2), posterior mean shift < 9%; evidence change ΔlogZ ≈ 0.6.
- Cross-validation: k = 5 CV error 0.042; new blind conditions maintain ΔRMSE ≈ −12%.
Copyright & License (CC BY 4.0)
Copyright: Unless otherwise noted, the copyright of “Energy Filament Theory” (text, charts, illustrations, symbols, and formulas) belongs to the author “Guanglin Tu”.
License: This work is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0). You may copy, redistribute, excerpt, adapt, and share for commercial or non‑commercial purposes with proper attribution.
Suggested attribution: Author: “Guanglin Tu”; Work: “Energy Filament Theory”; Source: energyfilament.org; License: CC BY 4.0.
First published: 2025-11-11|Current version:v5.1
License link:https://creativecommons.org/licenses/by/4.0/