Imam Mudita, Imam
Badan Pengkajian dan Penerapan Teknologi

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TEKNOLOGI SURVEI PEMETAAN LINGKUNGAN PANTAI Mudita, Imam
JURNAL ILMIAH GEOMATIKA Vol 20, No 2 (2014)
Publisher : Badan Informasi Geospasial

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (177.77 KB) | DOI: 10.24895/JIG.2014.20-2.161

Abstract

Teknologi survei pemetaan adalah mulai dari perencanaan survei, pengambilan data pada saat survei hingga pengolahan data dan penyajian informasinya dalam bentuk peta dengan skala tertentu yang diinginkan untuk tujuan tertentu. Makalah ini mencoba memberikan gambaran tentang teknologi survei pemetaan lingkungan pantai terutama teknologi survei dan perangkat keras pengambilan datanya, yang pernah digunakan di Balai Teknologi Survei Kelautan – BPPT, dan sudah cukup banyak mengalami perkembangan teknologi.Kata Kunci: Teknologi survei, lingkungan pantai, petaABSTRACTMapping survey technology is start from survey planning, data collection at the time of survey until data processing and presentation of information in the form of a map with a certain scale that desired for a particular purpose. This paper tries to give an overview of mapping survey coastal environment technology, especially technology and hardware survey data collection, which has been used in the Center of Marine Survey Technology - BPPT, and there are enough technological developments.Keyword: Survei technology, coastal environtment, map
Direct Position Estimation (DPE): A Potential Application in Geodetic Networks Mudita, Imam
Jurnal Geospasial Indonesia Vol 7, No 2 (2024): December
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jgise.102078

Abstract

Direct Position Estimation (DPE) is a relatively new technique in the Global Navigation Satellite System (GNSS) that is used to estimate the user’s position, velocity, and time directly from the correlation values of the received GNSS signal with the internal replica signals of the receiver. Unlike the conventional two-step approach, DPE infers the position directly from the sampled data without intermediate steps by joining signal tracking, and the navigation technique directly compares the expected signal reception of multiple potential navigation candidates against the actual received signal. The theoretical results indicate that DPE-based GNSS receivers can achieve more robust localization than conventional two-step receivers. DPE localization algorithms that compute the navigation solution directly in the navigation domain have been proposed, providing ways to address the challenges of conventional two-step receivers at the expense of additional computational load. Despite its high computational load, DPE is a more robust positioning algorithm than conventional two-step receivers in terms of multipath mitigation. The resilience of DPE against multipath and non-line-of-sight can even potentially offer applications in geodetic networks, where robust estimators are traditionally employed to counteract outliers.