GNSS Accuracy Analysis for Efficiency of Ground Control Point (GCP) Measurement

- Khomsin, Ira Mutiara Anjasmara, Rizky Romadhon

Abstract


Nowadays, the Global Navigation Satellite System (GNSS) has a significant role in the field of surveying and mapping, especially in determining the coordinates of ground control points for rectifying aerial photography, satellite imagery and airborne lidar. Each of these rectification processes requires a different coordinate accuracy from 5 to 20 cm. This research will conduct GNSS measurement with radial method and observation length to see how far the required accuracy will be fulfilled. This research examined ten Ground Control Points (GCPs) using the GNSS receiver in Surabaya. Each GCP was observed for 2 hours with 15” epoch and then they were processed with an interval of 15 minutes such as 15’, 30’, 45’, 60’, 75’, 90’, 105’ and 120’ with the radial method. In general, the results showed that the longer the GNSS observation the more accurate coordinates from 0.923 m (15 minutes) to 0.011 m (120 minutes) will be achieved. Measurement of GCPs for aerial photogrammetry, High-Resolution Satellite Image (HRSI), and airborne LIDAR needs 15’ observation both of radial and network method for less than or equal 10 km of baseline. For 10 – 20 km, the radial method needs 90’ observation for photogrammetry, 75’ observation for HRSI, 45’ GCPs observation of airborne LIDAR, but for network methods need 45’ observation for photo and HRSI and 30’ observation for Airborne LIDAR. 


Keywords


GCP; GNSS; radial method; rectification.

Full Text:

PDF

References


J. Bakara. Perkembangan Sistem Satelit Navigasi Global dan Aplikasinya. Berita Dirgantara. vol. 12. pp. 38-47. 2011.

Novatel. An Introduction to GNSS. GPS, GLONASS, BeiDou and other Global Navigation Satellite System. Second Edition. Novatel Inc. 2015.

H. Z. Abidin. Penentuan Posisi GPS dan Aplikasinya. Jakarta: PT. Pradnya Paramita. 2000.

D. Prasetyaningsih. Partisipasi Indonesia dalam Pembahasan Sistem Satelit Navigasi Global (Global Navigation Satellite System). Berita Dirgantara. vol. 13, p. 123. 2012.

A. W. Hasym. Menentukan Titik Kontrol Tanah (GCP) dengan Menggunakan Teknik GPS dan Citra Satelit untuk Perencanaan Perkotaan. 2009.

K. K. Pribadi. Pengukuran dan Pengamatan Ground Control Point (GCP) dalam Misi Pemotreatan Udara di Area Pembangkit Listrik Tenaga Air Ketenger Kabupaten Banyumas. Universitas Pendidikan Indonesia. Bandung. 2016.

BIG. Modul I-VI Sumber Data dan Peta Dasar. in Modul Validasi Peta Rencana Tata Ruang. BIG. 2016.

E.D. Kaplan. Understanding GPS. Principles and Applications. Second Edition. Artech Hous. Inc. 2006

B. S. Nasional. SNI 19-6724-2002 Jaring Kontrol Horizontal. BIG. 2002.

S. Romadhon. Analisis Ketelitian Data Pengukuran Menggunakan GPS denga Metode Diferensial Statik dalam Moda Jaring dan Radial. Forum Manajemen. vol. 5. p. 43.

M. E. Rahadi. M. Awaluddin and L. M. Sabri. Analisis Ketelitian Pengukuran Baseline Panjang GNSS Dengan Menggunakan Perangkat Lunak Gamit 10.4 dan Topcon Tools V7. Jurnal Geodesi Undip. vol. 2. p. 208. 2012.

El-Rabbany. Introduction to GPS The Global Positioning. Boston: Artech House. 2002

C.D. Ghilani, Adjustment Computation: Spatial Data Analysis Fifth Edition. New Jersey: John Wiley & Sons, Inc. 2010




DOI: http://dx.doi.org/10.18517/ijaseit.10.2.7908

Refbacks

  • There are currently no refbacks.



Published by INSIGHT - Indonesian Society for Knowledge and Human Development