Author

Sundeep Rangan

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Preprint Sep 2026

MAGNETAR: Multipath-Guided Spatial Posteriors for Transmitter Pose Inference in the Upper Mid-Band

Robots that localize a radio transmitter need more than a point estimate: in cluttered rooms, one measurement is often consistent with several transmitter locations and, because upper-mid-band antennas are directional, several headings. We present MAGNETAR, which infers a joint posterior over planar transmitter positio...

Hao-Zhe Lei, Rui-Bin Chen, Yu-Han Jiang et al. · 0 citations

Preprint Sep 2026

MAPLE-RF: Efficient Probabilistic RF Source Localization in Partially Explored Environments

This work studies single-snapshot transmitter localization on partially explored maps and compares two approaches that output a posterior over transmitter locations, and concludes that digital-twin approach is more accurate on most single-snapshot metrics than MAPLE-RF.

Hao-Zhe Lei, Sundeep Rangan · 0 citations

Preprint Aug 2026

LOCUS-DT: Localization via Observation-Conditioned Uncertainty Scoring with Digital Twins

LOCUS-DT (Localization via Observation-Conditioned Uncertainty Scoring with Digital Twins), a framework that treats snapshot localization as posterior inference over the transmitter location, is proposed, demonstrating that it captures the sharp, multimodal posterior structures inherent in indoor settings more accurate...

Hao-Zhe Lei, Roberto Bomfin, Marwa Chafii et al. · 4 citations · ⚡1