UJI AKURASI PENGUKURAN GNSS METODE MANUAL LEVELING DAN TILT COMPENSATION PADA PENGUKURAN TITIK BATAS BIDANG TANAH

I DEWA GDE DWITA ARIRAMAWAN WIJAYA, 22314237 (2026) UJI AKURASI PENGUKURAN GNSS METODE MANUAL LEVELING DAN TILT COMPENSATION PADA PENGUKURAN TITIK BATAS BIDANG TANAH. Diploma thesis, Politeknik Agraria STPN.

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Abstract

Land parcel boundary measurements using GNSS RTK-NTRIP under nonideal field conditions, such as building obstructions, vegetation, and boundary points located on walls or building corners, create difficulties in antenna leveling and may cause horizontal coordinate bias. This study evaluates the accuracy of an IMU-based GNSS receiver by comparing manual leveling and tilt compensation methods at tilt angles of 10°, 30°, and 60° under open-sky and obstructed conditions. The research used a quantitative comparative approach with a quasi-experimental design on 20 sample points, consisting of 10 opensky points and 10 obstructed points. Each point was measured using four methods with three observation sessions, resulting in 240 RTK-NTRIP observations. Data were analyzed using the Friedman test, Repeated Measures ANOVA, and Cochran’s Q test. The results show significant differences among methods under open-sky conditions based on the Friedman test (p = 0.0002), with manual leveling producing the smallest error tendency and 60° tilt compensation producing the largest. Under obstructed conditions, the differences were not significant based on Repeated Measures ANOVA (p = 0.155), indicating that obstruction and multipath were more dominant than the measurement method. Open-sky observations had an average HDOP of 0.544 and 25.57 used satellites, while obstructed observations had an average HDOP of 0.749 and 17.93 used satellites. Compliance with the 10 cm cadastral survey tolerance based on PMNA/KaBPN No. 3 of 1997 under open-sky conditions was M1 = 100%, M2 = 100%, M3 = 80%, and M4 = 20%, while under obstructed conditions it decreased to M1 = 40%, M2 = 60%, M3 = 50%, and M4 = 40%. Therefore, small-angle tilt compensation can still be applied in cadastral measurements, but high tilt angles and obstructed environments require stricter quality control. Keywords: IMU, tilt compensation, manual leveling, HRMS, cadastral surveying

Item Type:	Thesis (Diploma)
Subjects:	H Social Sciences > HD Industries. Land use. Labor > HD29 Pertanahan
Divisions:	Prodi Diploma IV Pertanahan
Depositing User:	yosep ka perpus
Date Deposited:	26 Jun 2026 07:57
Last Modified:	26 Jun 2026 07:57
URI:	http://repository.stpn.ac.id/id/eprint/4802

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