Perancangan Modul Pengolahan Sinyal Radar CC-OFDM-Mimo Berbasis FPGA

Prasetyo, Zufar Bagas (2024) Perancangan Modul Pengolahan Sinyal Radar CC-OFDM-Mimo Berbasis FPGA. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada zaman sekarang ini, perkembangan radar mulai meningkat dengan cepat. Namun, jika hal ini terus berlanjut akan ada banyak radar yang berpotensi gagal beroperasi karena adanya interferensi frekuensi yang kuat. Hal tersebut bisa diatasi dengan pengkodean sinyal radar yang tepat, salah satunya adalah menggunakan OFDM. Dengan OFDM, teknik DBF dan MIMO dapat diterapkan pada radar sehingga dapat mengatasi kelemahan pada metode pemindaian radar konvensional dan sinyal dapat diproses secara digital. Dengan menambahkan teknik CC, beam jamak yang dihasilkan oleh antena MIMO dapat dikendalikan dengan baik. Selain itu, karena keortogonalan antar-subcarrier dari gelombang OFDM yang memungkinkan pemrosesan profil jarak dan profil Doppler yang independen antar-subcarrier, radar CC-OFDM-MIMO dapat mengatasi range-doppler coupling yang menjadi kekurangan dari radar Linear Frequency Modulated (LFM). Pengolahan sinyal dapat dilakukan secara digital pada FPGA yang memiliki fleksibilitas yang tinggi dan pemrosesan sinyal yang cepat. Di Indonesia, perkembangan industri radar merupakan salah satu hal yang penting untuk keamanan negara. Salah satu kegunaannya adalah untuk memantau pergerakan kapal laut dan pesawat terbang pada daerah tertentu. Oleh karena itu, pada penelitian ini dilakukan perancangan modul pengolahan sinyal radar CC-OFDM-MIMO berbasis FPGA. Hasil dari penelitian yang dilakukan adalah desain modul yang dibuat menggunakan perangkat lunak MATLAB, implementasi desain tersebut yang berupa kode program C++ pada FPGA, dan analisis hasil pemrosesan informasi satu target dan dua target oleh simulasi dan FPGA.
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Radar development began to accelerate in this day and age. However, if this trend continues, many radars will be susceptible to failure because of severe frequency interference. This can be avoided by properly using radar signals coding, such as OFDM. Together with DBF and MIMO techniques, OFDM can be applied to radar to overcome the shortcomings of traditional radar scanning methods and allow signals to be processed digitally. Additionally, by incorporating the CC, multiple beams produced by MIMO antennas can be adequately regulated. In addition, because the inter-subcarrier orthogonality of the OFDM waveforms allows independent measurement of ranges and Doppler profiles between subcarriers, the CC-OFDMMIMO radar can overcome the range-doppler coupling which is a drawback of Linear Frequency Modulated (LFM) radars. Radar signal processing can be done digitally on FPGAs which have high flexibility and fast signal processing. In Indonesia, the development of the radar industry is one of the important things for national security. One of its uses is to track ships and aircraft in certain areas. Therefore, in this study, the design of the FPGA-based CCOFDM-MIMO radar signal processing module was carried out. The research findings include module designs created with MATLAB, the implementation of these designs in the form of C++ code on FPGAs, and analysis of the processed information of one target and two targers by simulation and FPGA implementation.

Item Type: Thesis (Other)
Uncontrolled Keywords: FPGA, OFDM, Pengolahan Sinyal, Radar, Signal Processing
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5102.9 Signal processing.
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5103.2 Wireless communication systems. Two way wireless communication
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5103.484 Orthogonal frequency division multiplexing.
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK6564 Radio transmitter-receivers
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7895.G36 Field programmable gate arrays--Design and construction.
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication
Divisions: Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User: Zufar Bagas Prasetyo
Date Deposited: 29 Jul 2024 06:31
Last Modified: 30 Jul 2024 01:24
URI: http://repository.its.ac.id/id/eprint/109314

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