Resonance. Coherence. Discovery.

Coherence Intelligence for Natural & Engineered Systems

HSAG develops measurement and inference methods that quantify phase‑locked structure across signals and fields. Our products transform spectral signatures into early‑warning and diagnostic intelligence for operational use.

Why Coherence?

Core Methods

Traditional guidance focuses on amplitudes (flux, CAPE, shear). STELLAR adds a complementary lens: phase‑coherent structure. PCI/BCS metrics quantify when variables remain phase‑locked, and when they begin to decohere—often hours before classical thresholds.

Early detection of instability windows
Quantified regime classification (stable ↔ convective ↔ mechanical)
Low‑overhead deployment, model‑agnostic outputs

HSAG libraries compute cross‑spectral metrics that expose coupling across scales.

Phase‑Coherence Index (PCI): stability of cross‑variable phase over frequency
Band‑Coherence Spectrum (BCS): coherent bands exceeding threshold with phase context
Harmonic Drift: detection of migrating or collapsing resonant peaks

Outputs stream as CSV/JSON or embed into dashboards and AI pipelines.

Platforms

Modular toolkits focused on atmospheric operations, phase‑health diagnostics, and secure communications.

STELLAR

Spectral Temporal Lattice for Environmental Resonance. Coherence‑intelligence for forecasting and micro‑siting. Detect diurnal collapse, mesoscale recoupling, and boundary‑layer instability with 6–12h lead time.

PCI/BCS diagnostics
Open‑Meteo / ERA5 / WRF / station data
CSV/NetCDF/API outputs

PhaseScan

Phase‑health sensing for biomedical and human‑performance contexts. Extract stable resonant bands from multimodal signals to quantify adaptation, fatigue, and recovery.

Multisensor acquisition
Real‑time spectral scoring
Clinic‑to‑field deployment

VEIL

Secure communications primitives that exploit spectral structure for robust, low‑probability‑of‑intercept signaling in contested or bandwidth‑limited environments.

Adaptive spectral masks
Edge‑deployable stack
API integration

Note: “STELLAR‑TOT” refers to our internal test environment used in case studies below.

stellar_tot_coherence_phase_annotated_ed

Results Snapshot

14‑day mid‑latitude case. STELLAR resolved strong T↔RH diurnal coherence (MSC≈0.97) with humidity lagging temperature by ~8h; semi‑diurnal T↔ps coupling; and high‑frequency ps↔W10 recoupling at ~2–3h. Exported metrics (PCI/BCS) enable regime classification and alerting.

Coherent bands: 24h dominant; 8–12h secondary; ~2h mesoscale
Deliverables: CSV/JSON bands, PDF technical note, LaTeX inserts
Integrations: ERA5/WRF alignment for validation and tuning

HSAG

Consortium

Harmonic Spin Activated Gravity