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°.
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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: | Anis Wulandari |
| Date Deposited: | 02 Jun 2017 02:39 |
| Last Modified: | 26 Dec 2018 07:57 |
| URI: | http://repository.its.ac.id/id/eprint/41452 |
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