Pith Number

pith:YZUSDCH6

pith:2026:YZUSDCH6PQOY64YOO6DDIN4MM5

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Intra-Gauge Rotated Vector Sum (IG-RVS) for Rayleigh Fading Mitigation in Coherent {\phi}-OTDR Systems

Andr\'e Richter, Igor Koltchanov

IG-RVS suppresses Rayleigh fading in coherent φ-OTDR by phase-aligning and summing neighboring bins within each gauge length.

arxiv:2605.15941 v1 · 2026-05-15 · physics.optics

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4 Citations open

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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

IG-RVS exploits spatial diversity within the gauge length by phase-aligning and coherently summing neighboring bins, thereby suppressing Rayleigh fading while preserving spatial resolution.

C2weakest assumption

That accurate phase alignment of neighboring bins is feasible in practice and that their coherent summation will reliably reduce fading amplitude without introducing new phase noise or resolution loss.

C3one line summary

Proposes IG-RVS, a DSP method that phase-aligns and coherently sums neighboring bins within the gauge length to suppress Rayleigh fading in coherent φ-OTDR while preserving spatial resolution.

References

15 extracted · 15 resolved · 0 Pith anchors

[1] A. H. Hartog, An Introduction to Distributed Optical Fibre Sensors, Boca Raton, FL: CRC Press, 2017, DOI: 10.1201/9781315119014 2017 · doi:10.1201/9781315119014

[2] Recent Progress in Distributed Fiber Acoustic Sensing with Φ-OTDR, 2020 · doi:10.3390/s20226594

[3] Coherent Φ- OTDR based on I/Q demodulation and homodyne detec- tion, 2016 · doi:10.1364/oe.24.000853

[4] The effect of gauge length on axially incident P-waves measured using fibre optic distributed vibration sensing,

[5] https://doi.org/10.1111/1365-2478.12419 · doi:10.1111/1365-2478.12419

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:01:45.941608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6692188fe7c1d8f730e778634378c674113c23ae6d893a09932c24a3f268143

Aliases

arxiv: 2605.15941 · arxiv_version: 2605.15941v1 · doi: 10.48550/arxiv.2605.15941 · pith_short_12: YZUSDCH6PQOY · pith_short_16: YZUSDCH6PQOY64YO · pith_short_8: YZUSDCH6

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/YZUSDCH6PQOY64YOO6DDIN4MM5 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: c6692188fe7c1d8f730e778634378c674113c23ae6d893a09932c24a3f268143

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1ee1bf6d7f93ebf19c298dad026cce6ceebaec6d923a7a0e9f8db0209b0a99e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-05-15T13:22:18Z",
    "title_canon_sha256": "38d18dbdef0c669b7888bcb9b747759935e759732959baa9e0b2a916782650ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15941",
    "kind": "arxiv",
    "version": 1
  }
}