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All Journal Jurnal Rekayasa elektrika Indonesian Journal of Aerospace
Rohmah, Nurul Fahrizatul
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Aerospace Engineering Astronomy Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Dual-mode Antenna Tracking System for Rocket Launch Applications Fakhri, Muh.; Rahmat, Mirza Zulfikar; Pascawati, Anita; Harsono, Sonny Dwi; Nugroho, Yuniarto Wimbo; Rahardiyanti, Kandi; Rohmah, Nurul Fahrizatul
Jurnal Rekayasa Elektrika Vol 20, No 2 (2024)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v20i2.35043

Abstract

Rocket launches are complex events that require tracking antennas to maintain a communication link. This study introduces a hybrid tracking strategy that combines manual and program modes by utilizing a predetermined trajectory of the rocket. Automatic switching between tracking modes ensures ongoing monitoring, even during unexpected trajectory changes with the monopulse approach. The dual parabolic antenna arrangement enables this switching. The system estimates the monopulse ratio from the signal strength of each antenna, allowing automatic program tracking to shift to manual mode when reception concerns arise. Performance evaluations included manual, programmable, and dual-mode tests. The system responded to human input and automatically aligned the antenna with slight elevation errors during the initial phase. Adjusting the initial elevation reduced the error. The mode transition was examined by measuring the antenna radiation patterns and monopulse ratio. The systems performance was evaluated in rocket launches, with the rocket trajectory input into the graphical user interface. The antenna exhibited an azimuthal movement of up to 10 , and the ratio fluctuation values remained within the antennas field of view. After 8.8 seconds, the mode switched from program to manual, indicating that the functioning of the systems functioning was stable.
LabVIEW based Ground Monitoring System for RX200 Rohmah, Nurul Fahrizatul; Faisa Lailiyul Mutho'Affifah; Fikana Mahardika Cantri; Ardian Wardhana; Mirza Zulfikar Rahmat
Indonesian Journal of Aerospace Vol. 22 No. 1 (2024): Indonesian Journal Of Aerospace
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/ijoa.2024.2553

Abstract

The implementation and deployment of a comprehensive ground monitoring system for rockets is essential to ensure the safety, efficiency, and success of space missions. Ground monitoring systems for rockets play a crucial role in providing real-time information and analysis of critical parameters during rocket operations, including ground testing and launch operations. The ground monitoring system encompasses various functionalities including the acquisition, processing, visualization, recording and storage of data. The data acquisition process in LabVIEW involves the use of TCP/IP Visa function to collect information. The processing involves various functions such as parsing, flight time calculation, and queue management for efficient data handling and calculations. The data can be recorded and stored using the TDMS function. The system efficiently managed all the received data. This study achieved 90,94% accurate data in processing the entire dataset and obtaining accurate values for calculating flight time. This combination yields precise and dependable data that can be utilized for making real-time decisions, analyzing performance, and evaluating missions after they have been completed.
Co-Authors Ardian Wardhana Faisa Lailiyul Mutho'Affifah Fakhri, Muh. Fikana Mahardika Cantri Harsono, Sonny Dwi Mirza Zulfikar Rahmat Nugroho, Yuniarto Wimbo Pascawati, Anita Rahardiyanti, Kandi Rahmat, Mirza Zulfikar