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https://doi.org/10.67252/gl.2026.80.3.1

GNSS Positioning Accuracy in Forest Environments: A Structured Critical Review of Canopy Effects and Mitigation Strategies

Bogdan Popovici ; Ștefan cel Mare University of Suceava Faculty of Forestry Universității Street no. 13, 720229 Suceava, Romania *
Raffaele Pelorosso ; Tuscia University Department of Agriculture and Forest Sciences (DAFNE) 01100 Viterbo (VT), Italy
Mihai Valentin Herbei ; University of Life Sciences "King Mihai I" from Timișoara Faculty of Agriculture Calea Aradului no. 119, 300645 Timișoara, Romania
Florin Sala ; University of Life Sciences "King Mihai I" from Timișoara Faculty of Agriculture Calea Aradului no. 119, 300645 Timișoara, Romania
Mihai Avădanei ; University of Petroșani Faculty of Mines Universității Street no. 20, 332006 Petroșani, Romania

* Dopisni autor.


Puni tekst: engleski pdf 1.665 Kb

str. 207-226

preuzimanja: 0

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Sažetak

GNSS positioning under forest canopy remains challenging, as vegetation attenuates signals, promotes multipath propagation, and degrades satellite geometry. This paper presents a structured critical narrative review of the scientific literature published between 1996 and 2025, updated through a search to 2026. Autonomous GNSS, DGPS, RTK-GNSS, multi-GNSS and low-cost RTK, as well as GNSS–IMU, LiDAR, UAV, UWB, and SLAM approaches are compared. Evidence indicates a progressive deterioration in performance with canopy density. In the reviewed studies, autonomous GNSS errors frequently reach 15–30 m under dense canopy, while multi-GNSS RTK solutions report, under comparable conditions, approximately 0.5–2.03 m; ranges are indicative, not statistically aggregated estimates. GNSS integration with inertial sensors and LiDAR increases continuity and robustness, but operational validation remains limited. The main contribution is a decision-oriented framework that correlates canopy, degradation mechanisms, technology and mitigation strategies. Three priorities are highlighted: standardized reporting, forest-adapted corrections and comparative validation of multi-sensor systems.

Ključne riječi

GNSS; forest canopy; positioning accuracy; RTK; LiDAR

Hrčak ID:

351458

URI

https://hrcak.srce.hr/351458

Datum izdavanja:

30.9.2026.

Podaci na drugim jezicima: hrvatski

Posjeta: 0 *