Penerapan SAGE (Space Alternating Generalized Expectation-Maximization) untuk estimasi parameter kanal dua arah (double directional) menggunakan antena array planar

Musayyanah, - (2015) Penerapan SAGE (Space Alternating Generalized Expectation-Maximization) untuk estimasi parameter kanal dua arah (double directional) menggunakan antena array planar. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Metode estimasi parameter Space Alternating Generelized Expectation- Maximization (SAGE) , mengestimasi parameter subspace yang terdiri dari Directional Of Arrival (DOA) dan Directional of Departure (DOD), dan parameter temporal yang terdiri dari Delay dan Amplitudo Kompleks. SAGE diterapkan dengan mengestimasi parameter sudut terlebih dahulu kemudian dilanjutkan dengan parameter temporal secara berurutan, hal ini dilakukan untuk pengukuran dengan perangkat resolusi delay yang rendah. Hasil simulasi diterapkan pada antena array planar dan antena array linier, yang dinyatakan dengan metode RMSE. Hasil simulasi tersebut menunjukkan bahwa kinerja SAGE dalam menndeteksi parameter yang dimulai dari sudut lebih baik dibandingkan dengan kinerja SAGE yang mendeteksi parameter yang dimulai dari delay. Sedangkan hasil verifikasi SAGE dilakukan dengan pengukuran di Gedung Baru Hall PENS dengan menggunakan perangkat USRP dan antena array linier, dimana hasil estimasi delay didapatkan dari hasil crosscorelasi antara data yang diterima dan data yang dikirim yang selanjutnya terdapat 3 komponen sinyal yang terdeteksi hal ini disebabkan oleh resolusi perangkat yang rendah. Selain itu, SAGE mampu mengindentifikasi arah keberangkatan dan arah kedatangan dari 3 komponen sinyal tersebut. Arah keberangkatan dan arah kedatangan yang merupakan output dari SAGE, divalidasi ulang menggunakan Ray Tracing 2 D yang merupakan gambaran penjajakan sinyal berdasarkan lokasi pengukuran. Hasil validasi antara output SAGE dan Ray Tracing mempunyai selisih eror sekitar 36°. ===================================================================================================== Alternating Space parameter estimation method Generelized Expectation- Maximization (SAGE), estimating the parameters subspace consisting of Directional Of Arrival (DOA) and Directional of Departure (DOD), and temporal parameters consisting of Delay and Amplitude Complex. SAGE is applied to estimate the parameters of the corner first and then proceed with the temporal parameters sequentially, this is done to measure the delay that low-resolution devices. The simulation results applied to a planar antenna array and linear array antenna, which is expressed by the method of RMSE. The simulation results show that the performance of SAGE detect parameters which starts from the point better than the performance of SAGE that detect parameters which starts from the delay. While the results of the verification is done by measuring SAGE in New Building Hall PENS using USRP devices and linear array antenna, in which the estimation results obtained from the crosscorelasi delay between the received data and the subsequent data sent, there are 3 components of the detected signal caused by the resolution of this case Low devices. In addition, SAGE is able to identify the direction of departure and arrival directions of the three components of the signal. Direction of departure and arrival direction which is the output of SAGE, revalidated use Ray Tracing 2 D which is a picture based on the location of the measurement signal assessment. Validation results between SAGE and Ray Tracing output has an error margin of about 36 °.

Item Type: Thesis (Masters)
Additional Information: RTE 621.382 4 Mus p
Uncontrolled Keywords: SAGE; double directional; Directional of Arrival; Directional of Departure; USRP ======================================================================================================== SAGE; double directional; Directional of Arrival; Directional of Departure; USRP
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7871.6 Antennas (Electronics)
Divisions: Faculty of Electrical Technology > Electrical Engineering > 20101-(S2) Master Thesis
Depositing User: - Taufiq Rahmanu
Date Deposited: 01 Apr 2019 03:54
Last Modified: 01 Apr 2019 03:54
URI: http://repository.its.ac.id/id/eprint/62662

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