Oleh Agfianto Eko Putra, Unggul Adhi Nugroho, Bakhtiar Alldino Ardi Sumbada dan Catur Atmaji
Abstrak
Telah dirancang-bangun penerima  paket APRS  berbasis  Raspberry  Pi  2  untuk  stasiun bumi.Tuner  TV  digunakan  sebagai  penerima  sinyal,  alat  penerima  diakses  melalui  laptop secara nirkabel. Antena Yagi dengan sebuah pengendali digunakan agar dapat secara otomatis mengarahkanke  satelit.Ujicoba  dilakukan  dengan  menerima  paket  APRS  yang  dipancarkan [...]

Continue reading about Rancang Bangun Purwarupa Penerima Paket APRS Berbasis Raspberry Pi 2 untuk Stasiun Bumi

by Endang Anggiratih and Agfianto Eko Putra

Abstract

Ship identification on satellite imagery can be used for fisheries management, monitoring of smuggling activities, ship traffic services, and naval warfare. However, high-resolution satellite imagery also makes the segmentation of the ship difficult in the background, so that to handle it requires reliable features so that it can be [...]

Continue reading about Ship Identification on Satellite Image Using Convolutional Neural Network and Random Forest

by Agfianto Eko Putra, Bakhtiar Alldino Ardi Sumbada, Anas Nurbaqin
UGM ground station requires a satellite tracking control system that can follow the movements of the satellite. The system proposed in this study is relying on the calculation of Two Line Elements (TLE), the reason is that the data TLE has a subtle error. The compass sensor [...]

Continue reading about Satellite Tracking Control System for UGM Ground Station Based on TLE Calculation

UGM ground station requires a satellite tracking control system that can follow the movements of the satellite. The system proposed in this study is relying on the calculation of Two Line Elements (TLE), the reason is that the data TLE has a subtle error. The compass sensor is used to ensure accuracy; the results were [...]

Continue reading about Satellite Tracking Control System for UGM Ground Station based on TLE Calculation

On-Board Computer or On-Board Data Handling (OBC/OBDH) has an important role as a manager for data housekeeping and communication handling between OBC/OBDH to its TTC (Telemetry and Telecommand) and EPS (Electronic Power System) subsystems in the satellite system. In order to operate according to the satellite sequence the RTOS (Real-Time Operating System) [...]

Continue reading about Real-time operating system implementation on OBC/OBDH for UGMSat-1 sequence

Telah berhasil dibuat model teknik subsistem OBDH dari UGM-SAT. Subsistem OBDH bertugas untuk mengendalikan pertukaran data dan komunikasi antara OBDH dengan subsistem lain. Pengendali utama dari OBDH menggunakan mikrokontroler PIC16F877A dengan frekuensi clock 20 Mhz. OBDH dilengkapi dengan empat buah eksternal EEPROM tipe 24LC256, digunakan untuk menyimpan data housekeeping satelit.Sub sistem OBDH dilengkapi dengan tiga [...]

Continue reading about Desain dan Implementasi On-Board Computer/ On-Board Data Handling (OBDH) pada UGM-SAT

Mastery of aerospace technology becomes very important for Indonesia. Due to the given the vast areas of Indonesia mostly in the form of marine waters.This condition has made a guarding and monitoring becomes easy. Therefore needed satellite technology that can be utilized to guard the interests of the territory of Indonesia. The success of developing [...]

Continue reading about IiNUSAT-1: The 1st Indonesian inter-university nano-satellite for research and education

Agfianto Eko Putra on August 3rd, 2014

Abstract
Field Programmable Gate Array (FPGA) is susceptible from hazardous radiation that leads to be in error state. In order to avoid that condition, we apply a fault tolerance technique. Most of the fault tolerances today are only using one mode, mean the fault tolerance that is applied will run all of the time without any [...]

Continue reading about Technical Implementation of Dual Mode Fault Tolerance

Hazard radiation can lead the system fault therefore Fault Tolerance is required. Fault Tolerant is a system, which is designed to keep operations running, despite the degradation in the specific module is happening. Many fault tolerances have been developed to handle the problem, to find the most robust and efficient in the possible technology. This [...]

Continue reading about Five Modular Redundancy with Mitigation Technique to Recover the Error Module

The satellite requires the support of a robust sub system. On Board Data Handling (OBDH) is the core function of the satellite subsystem and has to be error free in managing the operation of the satellite. [...]

Continue reading about Error Detection and Correction System (EDAC) of On Board Data Handling (OBDH) in Real Time Operating System Behaviour