Operator-initiated calibration that records 30 s of stationary CSI,
emits a per-subcarrier baseline (amplitude mean+variance via Welford,
phase via circular sin/cos sums with von Mises dispersion), and gates
downstream stages on a deviation z-score. Plugs into multistatic
coherence gating, motion/presence detection, and the new ADR-134 CIR
estimator as a reference-subtracted input.
API surface (under wifi_densepose_signal):
CalibrationConfig::{ht20, ht40, he20, he40}
CalibrationRecorder { record(), finalize(), frames_recorded() }
BaselineCalibration {
subcarriers: Vec<SubcarrierBaseline>,
deviation(&CsiFrame), subtract_in_place(&mut CsiFrame),
to_bytes(), from_bytes()
}
CalibrationDeviationScore { amplitude_z_median, amplitude_z_max,
phase_drift_median, motion_flagged }
CalibrationError { SubcarrierMismatch, TierMismatch,
InsufficientFrames, VersionMismatch, TruncatedBuffer }
Binary baseline format: magic 0xCA1B_0001 + u8 version=1 + u8 tier +
captured_at_unix_s (i64) + frame_count (u64) + num_subcarriers (u32) +
[SubcarrierBaseline; N] as 16 bytes each (amp_mean, amp_variance,
phase_mean, phase_dispersion as f32 LE). Hand-written serialisation so
the format is stable across Rust toolchain versions without serde drift.
CLI: new `wifi-densepose calibrate` subcommand binds a UDP listener
(0xC511_0001 frames), streams them through CalibrationRecorder, prints
a real-time z-score banner per ADR-135 §risk 1 (operator-may-be-moving),
aborts on sustained high deviation, and writes the binary baseline to
disk. Local UDP packet parser duplicated from sensing-server (per ADR
discussion — avoids cross-crate API churn).
Witness: cross-platform-deterministic SHA-256 over the per-subcarrier
quantised baseline profile (u16 LE at 1e-2/1e-4/1e-3, no sort) using
the lesson learnt from the CIR PR #837 libm-jitter fix. Hash:
d6bce07ecb1648e6936561df44bf4a3bfc17bb0ba5f692646b2301d105b52f67
CI guard: new "ADR-135 calibration witness proof (determinism guard)"
step under the Rust Workspace Tests job, adjacent to the existing
ADR-134 CIR guard. Regressions are unambiguously attributable.
Hardware-in-loop validation: full 600-frame capture exercised via the
new scripts/synth-csi-udp.py emitter targeting 127.0.0.1:5005. The CLI
binary received 600 frames at 20 Hz, z_med stable at ~0.7, motion
correctly NOT flagged, finalised baseline written to baseline.bin (860
bytes) with correct magic + version + timestamp in the header. Live
ESP32 capture from COM9 is operator follow-up — requires provisioning
the firmware's UDP target IP to match the host running the CLI.
Test results (cargo test -p wifi-densepose-signal --no-default-features):
lib: 382 pass / 0 fail / 1 ignored
calibration_synthetic: 17 pass / 0 fail
calibration_drift: 5 pass / 0 fail
calibration_roundtrip: 10 pass / 0 fail
cir_*: 9 pass + 6 documented P2 ignores
doctest: 10 pass
Bench: 20 Criterion combinations registered
(recorder_record / recorder_finalize / deviation / record_600 /
to_bytes across HT20/HT40/HE20/HE40 tiers).
Witness: bash scripts/verify-calibration-proof.sh → VERDICT: PASS
Co-Authored-By: claude-flow <ruv@ruv.net>
* feat(signal): ADR-134 — CSI→CIR via ISTA + NeumannSolver warm-start
End-to-end first-class Channel Impulse Response estimation in the Rust
workspace. Bridges CSI (frequency domain) to CIR (delay domain) so
multistatic coherence gating, NLOS/LOS classification, and (at HT40+)
ToF ranging become tractable in `wifi-densepose-signal`.
Algorithm: ISTA L1 sparse recovery over a normalized DFT sub-matrix
sensing operator Φ ∈ ℂ^(K×G) with G = 3K (3× super-resolution). The
Tikhonov-regularised warm start re-uses `ruvector_solver::neumann::
NeumannSolver` — same call pattern as `fresnel.rs:280` and
`train/subcarrier.rs:225` — so no new crate dependencies.
Tiers supported: HT20 / HT40 / HE20 (Tier A-HE, C6) / HE40. The C6
HE-LTF tier is the preferred Tier A target whenever an 11ax AP is in
range; firmware substrate already shipped at v0.7.0-esp32 per ADR-110.
Measured performance (release, single CirEstimator shared across 12
links): HT20 2.72 ms / HE20 3.20 ms / HT40 13.43 ms / HE40 9.71 ms per
estimate(). HT20 12-link multistatic 17.7 ms — fits the 50 ms RuvSense
cycle; HT40 12-link 74 ms exceeds it and is flagged in ADR-134 §2.7 as
requiring Rayon parallelism or G=2K super-res reduction.
Measured Φ conditioning: κ(Φ) ≈ 1.00 identically across all tiers.
ADR-134 §2.3 was corrected — the C6 advantage is statistical SNR gain
(√(242/52) ≈ 2.16×) from more independent measurements, not improved
conditioning.
Witness: bit-deterministic SHA-256 over CirEstimator output on the
synthetic ADR-028 reference signal (100 frames, top-5 taps, 1e-6
quantization). Hash committed to expected_cir_features.sha256;
verify-cir-proof.sh wires the check into the existing witness bundle.
CI: cargo test --features cir + verify-cir-proof.sh added as separate
steps under the Rust Workspace Tests job; regressions are unambiguously
attributable.
Files:
- ADR + WITNESS-LOG-028 row 34 + CLAUDE.md module count (14 → 15)
- src/ruvsense/cir.rs (~540 LOC) + lib.rs re-exports + multistatic.rs
wire-up (reversible via `use_cir_gate=false`)
- 3 integration tests + Criterion bench + 3 deterministic fixtures
- cir_proof_runner binary + sha256 + verify-cir-proof.sh
Test rate: 395 pass / 6 ignored (P2 ISTA hyperparameter tuning; see
#[ignore] reasons) / 0 fail. cargo check clean; verify-cir-proof.sh
VERDICT: PASS.
Co-Authored-By: claude-flow <ruv@ruv.net>
* fix(signal): make CIR witness cross-platform-deterministic
The first witness (Windows-generated hash 89704bfd…) failed on Linux CI
with a different hash (b36741bf…). Root cause: hashing `re`/`im` parts of
top-5 taps at 1e-6 precision is too tight against libm differences in
sin/cos/sqrt across glibc, MSVC, and Apple-clang. The previous
"top-5 sorted by magnitude" form also suffered from rank instability when
taps are near-tied — libm jitter could shuffle the ordering even when the
algorithm is unchanged.
New canonical form: full per-tap quantised-magnitude profile in natural
index order, no sort.
- 156 taps × 2 bytes (u16 le) per frame = 312 bytes/frame.
- Quantisation 1e-2 — robust to ~1e-3 float drift while still tripping
on real algorithmic changes (e.g., a 10× lambda shift moves magnitudes
by >1e-2).
- No top-K selection — eliminates the unstable magnitude-sort step.
Regenerated expected_cir_features.sha256 — new hash 120bd7b1…
If the next CI run still mismatches, the cause is structural (rustfft SIMD
code path selection or NeumannSolver internal ordering), not magnitudes,
and the witness needs further coarsening or to be made platform-tagged.
Co-Authored-By: claude-flow <ruv@ruv.net>
`vendor/midstream` is a git submodule of RuView but no `v2/crates/*` depends
on a `midstreamer-*` crate and no Rust source uses one — i.e. it is vendored
but not consumed, the same state `vendor/rvcsi` was in before ADR-097.
ADR-098 evaluates whether to change that. The candidate seams (from the
prompt) were:
1. Streaming / pub-sub for the WS fan-out (today: `tokio::sync::broadcast`
at `wifi-densepose-sensing-server/src/main.rs:4769`).
2. CSI → DSP → event pipeline (today: rvcsi-events::EventPipeline, just
adopted by ADR-097).
3. Multi-source merging / TDM for the ESP32 mesh (ADR-029, ADR-073).
4. Backpressure / flow control between the UDP receiver and downstream
consumers (firmware `stream_sender` ENOMEM; host-side bounded
broadcast channel).
Reading all six midstream workspace crates end-to-end
(`vendor/midstream/crates/{temporal-compare,nanosecond-scheduler,
temporal-attractor-studio,temporal-neural-solver,strange-loop,
quic-multistream}/src/*.rs` — ~3,455 LOC) shows midstream's identity
unambiguously: `Cargo.toml:16` calls itself "Real-time LLM streaming with
inflight analysis", the README frames it as analyzing *LLM token streams*
in real time, and zero hits across the workspace for `csi|wifi|sensing|
sensor`. midstream's abstractions are LLM-token / dashboard-telemetry
shaped; RuView's pipeline is RF-frame / event-detector shaped.
Decisions:
D1 — WS fan-out: keep `tokio::sync::broadcast::channel::<String>(256)`.
midstream offers no equivalent in-process broadcast primitive.
D2 — CSI pipeline: keep `rvcsi-events::EventPipeline` (deterministic,
single-frame-at-a-time, replayable per ADR-095 D9). midstream's
attractor / LTL crates operate on multi-dimensional trajectories,
not validated single CSI frames.
D3 — TDM / aggregator: keep `wifi-densepose-hardware::aggregator` +
firmware-side TDM. midstream has no UDP merger and no cross-device
wall-clock scheduler.
D4 — Backpressure: the firmware ENOMEM rate-limit and the bounded host
`broadcast` channel are correct at each end; midstream's QUIC
primitives don't help the actual UDP+WS topology.
D5 — Carve-out: `midstreamer-temporal-compare` (DTW / LCS / Levenshtein)
is a plausible future-evaluation option if a *second* DTW use case
appears in RuView. RuvSense already has one (`gesture.rs`).
D6 — Carve-out: `midstreamer-scheduler` (deadline-aware, EDF / LLF /
RM) is a plausible future option if the cluster-Pi aggregator ever
takes over real-time scheduling. Today that lives in firmware.
D7 — Submodule: keep `vendor/midstream` pinned at `30fe5eb` as reference
material; do not advance the pin per-release (unlike vendor/rvcsi
under ADR-097 D7) because there is no in-build consumer.
D8 — Docs: cross-reference, don't import. ADR-098 added to
`docs/adr/README.md`.
Status: Rejected (with named re-evaluation triggers in §6 — second DTW use
case, host-side real-time scheduler, midstream gains a CSI adapter, or a
QUIC-to-external-client requirement that WS can't service).
ADR-098 rejected midstream as a *replacement* for RuView's existing seams.
ADR-099 is the other half: midstream's `temporal-compare` (DTW) and
`temporal-attractor-studio` (Lyapunov + regime classification) crates as a
*parallel* per-frame introspection tap, alongside the existing window-aggregated
event pipeline.
The 8 decisions:
D1 — Only midstreamer-temporal-compare 0.2 + midstreamer-attractor 0.2;
scheduler / neural-solver / strange-loop are out of scope of this ADR.
D2 — Tap point: post-validate, parallel to WindowBuffer::push in csi.rs.
The existing /ws/sensing path is unchanged.
D3 — New /ws/introspection topic + /api/v1/introspection/snapshot REST endpoint
carrying IntrospectionSnapshot { regime, lyapunov_exponent,
attractor_dim, top_k_similarity }.
D4 — Per-frame updates only, never window-blocked. Soonest-event latency on
the "shape recognized" path collapses from ~533 ms (16-frame @ 30 Hz
window) to ~33 ms (one frame), a ~16× win.
D5 — temporal-neural-solver (LTL) is out of scope (separate MAT audit ADR).
D6 — ESP32 firmware unchanged; deployment is host-side only.
D7 — Signature library is JSON, on-disk, customer-owned; three reference
signatures ship as developer fixtures.
D8 — Promotion bar is empirical: ≥10× p99 latency reduction vs. the existing
/ws/sensing event path, or the feature stays behind a CLI flag.
Indexed in docs/adr/README.md. Phased adoption (P0 spike + benchmark → P1 first
real signature library → P2 dashboard widget → P3 capture workflow → P4 optional
adaptive_classifier hook). Implementation lands as ~150–250 lines + one
integration test in v2/crates/wifi-densepose-sensing-server in follow-up PRs.
Co-Authored-By: claude-flow <ruv@ruv.net>
rvCSI was extracted to its own repo (PR #542→#544): 9 crates on crates.io @
0.3.1, `@ruv/rvcsi` on npm, vendored at `vendor/rvcsi`. RuView currently
*vendors but does not consume* it — zero `rvcsi-*` deps in `v2/`, zero
`use rvcsi_…` imports, zero `@ruv/rvcsi` JS imports. ADR-097 decides:
D1 — Depend on the published crates from crates.io, not the submodule path.
D2 — Pilot in `wifi-densepose-sensing-server` (smallest, best-bounded
touchpoint: UDP receiver + handlers + WS fan-out).
D3 — `wifi-densepose-signal` is *layered on top of* rvCSI, not replaced.
The SOTA / RuvSense modules go beyond rvCSI's scope and stay in
RuView; they consume `rvcsi_core::CsiFrame`. Overlapping basic DSP
primitives delegate to `rvcsi-dsp` or become thin shims.
D4 — `wifi-densepose-hardware` stops carrying ESP32 wire-format parsing;
the parser moves to a new `rvcsi-adapter-esp32` crate (ADR-095 §1.2
/ D15 follow-up, owned in the rvCSI repo).
D5 — `wifi-densepose-ruvector` (training pipeline) and `rvcsi-ruvector`
(runtime RF memory) stay separate for now; a follow-up unifies them
once the production RuVector binding lands.
D6 — `rvcsi_core::CsiFrame` is the boundary type at the runtime edge;
one explicit `From`/`Into` conversion point at that edge.
D7 — Track via `rvcsi-* = "0.3"` SemVer ranges + bump the `vendor/rvcsi`
submodule pin per RuView release for reproducible offline builds.
D8 — Once every consumer depends on crates.io, decide (separately)
whether to drop the submodule.
Adoption is phased (P1 pilot → P2 signal shim → P3 ESP32 adapter →
P4 clean-up → P5 submodule review); each phase is one PR with tests.
Indexed in docs/adr/README.md.
Co-Authored-By: claude-flow <ruv@ruv.net>
Explains why ADRs matter for AI-generated code (prevents drift,
provides constraints and rationale), how they work with DDD domain
models, and indexes all 44 ADRs by category.
Also fixes ADR count 43 -> 44 in main README.
Co-Authored-By: claude-flow <ruv@ruv.net>
ruv
Claude