ANALISIS PENGUKURAN GNSS METODE STATIK  DENGAN VARIASI SAMPLING RATE

Bambang Darmo Yuwono; Ory Andrian Apsandi

doi:10.14710/elipsoida.2018.3697

DOI: https://doi.org/10.14710/elipsoida.2018.3697

ANALISIS PENGUKURAN GNSS METODE STATIK DENGAN VARIASI SAMPLING RATE

Bambang Darmo Yuwono , Ory Andrian Apsandi

Diponegoro University, Indonesia

Received: 23 Nov 2018; Published: 23 Nov 2018.

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Abstract

Perkembangan satelit GNSS semakin pesat ditandai dengan semakin banyaknya satelit dan ketelitian yang semakin baik. Penentuan posisi dengan satelit GNSS dapat dilakukan dengan metode statik dan kinematik. Beberapa strategi untuk meningkatkan ketelitian diantaranya penggunaan sampling rate. Nilai sampling rate ini akan memberikan kontribusi terhadap hasil ketelitian yang diperoleh. Penelitian ini akan mengkaji seberapa besar pengaruh sampling rate terhadap ketelitian yang dihasilkan.Penelitian ini dilakukan dengan menggunakan metode statik dengan beberapa sampling rate. Data diperoleh dari pengukuran GNSS di 20 titik di Kota Semarang. Titik kontrol yang digunakan dalam penelitian ini adalah GRAV11, stasiun CORS CSEM ( CORS BIG di Kota Semarang ) dan stasiun CORS Universitas Diponegoro. Penelitian ini dilakukan dengan membandingkan hasil pengukuran static dengan lama pengamatan satu jam pada sampling rate satu detik, lima detik, 15 detik, dan 30 detik. Pengolahan dilakukan secara post –processing. Hasil penelitian menunjukkan bahwa variasi sampling rate menghasilkan nilai simpangan baku paling kecil yaitu pada sampling rate 1 detik yaitu <0,010 m. Sampling rate 30 detik memiliki nilai simpangan baku yang paling besar diantara sampling rate yang lain. Nilai simpangan baku pada sampling rate 15 detik dan 30 detik memiliki nilai korelasi yang paling tinggi.

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In Vol 1, No 02 (2018): Volume 01 Issue 02 Year 2018

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