Pith Number

pith:XGDLVWLW

pith:2026:XGDLVWLWALKE4GLUQIEJAPLPE3

not attested not anchored not stored refs pending

Enhanced Direction-Sensing Methods and Performance Analysis in Low-Altitude Wireless Network via a Rotating Antenna Array

Feng Shu, Jiangzhou Wang, Jiatong Bai, Jinbing Jiang, Maolin Li, Minghao Chen, Wan Choi, Yan Wang

A pre-rotation step followed by greedy spectrum search lets a rotatable antenna array reach the CRLB in direction sensing while cutting mechanical rotations and matrix operations.

arxiv:2603.20784 v4 · 2026-03-21 · eess.SP

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\usepackage{pith}
\pithnumber{XGDLVWLWALKE4GLUQIEJAPLPE3}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications 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

Simulation results demonstrate that the proposed PRI-IGSS method performs much better than RR-Root-MUSIC and achieves the CRLB in term of mean squared error due to the fact there is no sample accumulation for the latter.

C2weakest assumption

The CRLB derivation relies on a simplified rotation model whose validity for real mechanical rotation dynamics and array imperfections is not detailed in the abstract; if this model deviates significantly from physical behavior, the claimed achievement of the CRLB may not hold.

C3one line summary

PRI-IGSS combines pre-rotation initialization via receive power with iterative greedy search on rotatable arrays to achieve lower complexity and MSE closer to the CRLB than RR-Root-MUSIC in low-altitude emitter sensing.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T01:06:09.173817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b986bad97602d44e19748208903d6f26cd72190f5fd980b5e8df5b1d74f4e46c

Aliases

arxiv: 2603.20784 · arxiv_version: 2603.20784v4 · doi: 10.48550/arxiv.2603.20784 · pith_short_12: XGDLVWLWALKE · pith_short_16: XGDLVWLWALKE4GLU · pith_short_8: XGDLVWLW

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XGDLVWLWALKE4GLUQIEJAPLPE3 \
  | 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: b986bad97602d44e19748208903d6f26cd72190f5fd980b5e8df5b1d74f4e46c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bf722b4defd912a168cd911ba41b4c34d2d839971a85ea62fd4abc682c99905",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2026-03-21T12:22:40Z",
    "title_canon_sha256": "0dc35287c9b57d4542bb6f85671c38efb800498bf64f02df6bd75e7a8441e7c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.20784",
    "kind": "arxiv",
    "version": 4
  }
}