Implementasi Algoritma Estimation Of Signal Parameters Via Rotational Invariance Techniques (ESPRIT) Dan Capon Minimum Variance Untuk Teknologi Smart Antenna Pada Universal Software Radio Peripheral (USRP)

Fatmacory, Tania (2016) Implementasi Algoritma Estimation Of Signal Parameters Via Rotational Invariance Techniques (ESPRIT) Dan Capon Minimum Variance Untuk Teknologi Smart Antenna Pada Universal Software Radio Peripheral (USRP). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dunia telekomunikasi saat ini membutuhkan sistem antena yang memiliki pola radiasi yang mampu berubah sesuai dengan arah pergerakan pelanggan. Konfigurasi antena dengan kemampuan tersebut dikenal dengan smart antenna. Antena mampu mendeteksi arah kedatangan sinyal (proses direction finding) dan kemudian merubah arah pancar main beam (proses beamforming). Pada Tugas akhir ini, dilakukan penelitian mengenai implementasi algoritma direction finding dan beamforming untuk smart antenna pada perangkat USRP. Simulasi sistem dilakukan untuk direction finding dan beamforming. Selanjutnya dilakukan realisasi pada USRP sampai tahap direction finding. Algoritma ESPRIT dipilih untuk menjalankan fungsi direction finding dan algoritma MVDR digunakan untuk melakukan beamforming. Penggunaan USRP dipilih untuk mengatasi permasalahan rumitnya konfigurasi perangkat RF dan tingginya biaya implementasi sistem. Sistem dirancang dengan konfigurasi array 1x3 dan bekerja pada frekuensi 2,4 Ghz. Berdasarkan hasil simulasi sistem, jika terdapat dua sumber sinyal, maka performansi ESPRIT dan MVDR berada pada kondisi optimal pada SNR ≥13 dB;50°≤DoA≤110° ; dan jarak antar sudut yang terdeteksi ≥30°. Untuk hasil pengukuran menggunakan perangkat USRP, rata-rata akurasi estimasi DoA pada seluruh sudut azimuth sebesar 44.7° pada 0°≤DoA≤180°. =================================================================================== Telecommunication world todays requires the antenna system with flexible radiation pattern that able to changes according to customers direction of movement. Antenna configuration with that ability known as smart antenna. An antenna capable of detecting the signals direction of arrival (direction finding processs) and then change the direction of the main transmitting beam (beamforming process). Research of this final project brings up a topic about implementation direction finding and beamforming algorithm for smart antenna technology on USRP devices, one type of SDR devices so the problems of configuration complexity between RF-device and high-cost system implementation can be resolved. Direction finding and beamforming process was simulated and simulation system further implemented in USRP devices until direction finding process. ESPRIT algorithm be elected to perform the direction finding and MVDR algorithms used to perform beamforming in smart antenna system. System has designed on frequency 2.4GHz with array configuration 1x3. From the result of simulation, with two signal source, ESPRIT and MVDR are optimum on SNR ≥ 13 dB;50°≤DoA≤110° ; and space between element are ≥30°. As for the results of measurements with USRP, accuracy average reaches 44.7° on 0°≤DoA≤180°.

Item Type: Thesis (Undergraduate)
Additional Information: RSE 621.382 4 Fat i
Uncontrolled Keywords: Smart antenna; TLS-ESPRIT; MVDR; direction finding; beamforming; USRP.
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5105.546 Computer algorithms
Divisions: Faculty of Industrial Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User: Mrs Anis Wulandari
Date Deposited: 02 Jun 2017 02:39
Last Modified: 26 Dec 2018 07:57
URI: https://repository.its.ac.id/id/eprint/41452

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