be068748b3
Milestone-0 correctness/security fixes for the beyond-SOTA signal/DSP sweep.
Every fix ships with a committed regression test (proof, not adjectives).
CRITICAL — ADR-134 CIR coherence gate was DEAD in production
MultistaticFuser fuses canonical-56 frames (hardware_norm.rs resamples every
chipset onto a 56-tone grid), but the gate was wired to CirConfig::ht20()
which expects 64/52. Every estimate() returned SubcarrierMismatch and
cir_gate_coherence silently fell back to freq-domain coherence — use_cir_gate
was indistinguishable from false. Fixes:
- new CirConfig::canonical56() (64-bin HT20 framing, 56 active tones, 168 taps)
- new MultistaticFuser::with_cir_canonical56() (correct default); ht20 kept,
now doc-warned
- active_indices() handles (64,56) + length-matched fallback (no silent
fall-through to the 52-index slice)
- SubcarrierMismatch in the gate now debug_assert!s loudly (config error can
no longer hide as a graceful degrade)
- cir_estimate_first() exposes the Ok/Err verdict for tests
PROOF (ruvsense::multistatic::tests): ht20 → 8/8 Err (dead); canonical56 →
8/8 Ok (alive); coherence(gate on) != coherence(gate off).
CRITICAL — adversarial.rs NaN/inf detector bypass
One non-finite link energy bypassed the whole detector (every `e>thresh`
false on NaN; score clamp returns NaN). A non-finite input is itself the
strongest spoof — now short-circuits to a definite anomaly (score 1.0,
affected link reported) and does not poison the temporal-continuity state.
PROOF: nan_link_energy_flags_anomaly, inf_link_energy_flags_anomaly.
CORRECTNESS — divide-by-(n-1) window trio
csi_processor hamming_window (n=0 usize underflow, n=1 div0), bvp Hann,
spectrogram make_window all guarded for n<=1 (empty / constant-1.0 window).
Python deterministic proof still PASS, same pipeline hash (reference uses n>=2).
PROOF: *_degenerate_sizes / *_size_one_is_finite / make_window_size_0_and_1.
CLARITY — calibration.rs subtract_in_place
Removed the vacuous `if active_input {ki} else {ki}` branch that implied a
full-FFT->bin remap that never existed; documented the sequential
active-index convention (matches sibling extract_first_stream). No behavior
change.
Tests: cargo test -p wifi-densepose-signal --no-default-features (+--features cir)
green; full workspace green; verify.py VERDICT: PASS.
Co-Authored-By: claude-flow <ruv@ruv.net>
|
||
|---|---|---|
| .. | ||
| benches | ||
| src | ||
| tests | ||
| Cargo.toml | ||
| README.md | ||
README.md
wifi-densepose-signal
State-of-the-art WiFi CSI signal processing for human pose estimation.
Overview
wifi-densepose-signal implements six peer-reviewed signal processing algorithms that extract
human motion features from raw WiFi Channel State Information (CSI). Each algorithm is traced
back to its original publication and integrated with the
ruvector family of crates for high-performance
graph and attention operations.
Algorithms
| Algorithm | Module | Reference |
|---|---|---|
| Conjugate Multiplication | csi_ratio |
SpotFi, SIGCOMM 2015 |
| Hampel Filter | hampel |
WiGest, 2015 |
| Fresnel Zone Model | fresnel |
FarSense, MobiCom 2019 |
| CSI Spectrogram | spectrogram |
Common in WiFi sensing literature since 2018 |
| Subcarrier Selection | subcarrier_selection |
WiDance, MobiCom 2017 |
| Body Velocity Profile (BVP) | bvp |
Widar 3.0, MobiSys 2019 |
Features
- CSI preprocessing -- Noise removal, windowing, normalization via
CsiProcessor. - Phase sanitization -- Unwrapping, outlier removal, and smoothing via
PhaseSanitizer. - Feature extraction -- Amplitude, phase, correlation, Doppler, and PSD features.
- Motion detection -- Human presence detection with confidence scoring via
MotionDetector. - ruvector integration -- Graph min-cut (person matching), attention mechanisms (antenna and spatial attention), and sparse solvers (subcarrier interpolation).
Quick Start
use wifi_densepose_signal::{
CsiProcessor, CsiProcessorConfig,
PhaseSanitizer, PhaseSanitizerConfig,
MotionDetector,
};
// Configure and create a CSI processor
let config = CsiProcessorConfig::builder()
.sampling_rate(1000.0)
.window_size(256)
.overlap(0.5)
.noise_threshold(-30.0)
.build();
let processor = CsiProcessor::new(config);
Architecture
wifi-densepose-signal/src/
lib.rs -- Re-exports, SignalError, prelude
bvp.rs -- Body Velocity Profile (Widar 3.0)
csi_processor.rs -- Core preprocessing pipeline
csi_ratio.rs -- Conjugate multiplication (SpotFi)
features.rs -- Amplitude/phase/Doppler/PSD feature extraction
fresnel.rs -- Fresnel zone diffraction model
hampel.rs -- Hampel outlier filter
motion.rs -- Motion and human presence detection
phase_sanitizer.rs -- Phase unwrapping and sanitization
spectrogram.rs -- Time-frequency CSI spectrograms
subcarrier_selection.rs -- Variance-based subcarrier selection
Related Crates
| Crate | Role |
|---|---|
wifi-densepose-core |
Foundation types and traits |
ruvector-mincut |
Graph min-cut for person matching |
ruvector-attn-mincut |
Attention-weighted min-cut |
ruvector-attention |
Spatial attention for CSI |
ruvector-solver |
Sparse interpolation solver |
License
MIT OR Apache-2.0