Process noise parameters of beamforming green nodes
Signals arrive out of phase at the intended receiver from collaborative beamforming (CB) nodes due to the instability in the output frequency signals of the universal software radio peripheral's (USRP) local oscillator (LO). These nodes including the target must synchronize their oscillator fre...
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| Format: | Article |
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University of Electronic Science and Technology of China
2016
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| _version_ | 1796861933124583424 |
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| author | Dauda, U. S. Nik Abd. Malik, N. Esa, M. Yusof, K. M. Yusoff, M. F. M. Hamid, M. R. |
| author_facet | Dauda, U. S. Nik Abd. Malik, N. Esa, M. Yusof, K. M. Yusoff, M. F. M. Hamid, M. R. |
| author_sort | Dauda, U. S. |
| collection | ePrints |
| description | Signals arrive out of phase at the intended receiver from collaborative beamforming (CB) nodes due to the instability in the output frequency signals of the universal software radio peripheral's (USRP) local oscillator (LO). These nodes including the target must synchronize their oscillator frequencies for coherent signal reception. In order to do this, frequencies and phases of the signals should be estimated in software defined radio (SDR) and smoothen with nonlinear filters such as the extended Kalman filter (EKF). The process noise parameters of the NI USRP-2920 nodes will have to be calculated and used with the EKF process noise covariance matrix. These nodes are green communication hardware devices where most of the hardware units are now software defined. This article uses the direct spectrum method to obtain the phase noise values at various frequency offsets of the NI USRP-2920 in order to calculate the power spectral density of fractional frequency fluctuation. By applying the power-law noise model to this obtained value, the generated white frequency noise and random walk frequency noise values are q1=1.93×10-21 and q2=5.86×10-18, respectively. |
| first_indexed | 2024-03-05T20:03:55Z |
| format | Article |
| id | utm.eprints-72435 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:03:55Z |
| publishDate | 2016 |
| publisher | University of Electronic Science and Technology of China |
| record_format | dspace |
| spelling | utm.eprints-724352017-11-27T08:11:50Z http://eprints.utm.my/72435/ Process noise parameters of beamforming green nodes Dauda, U. S. Nik Abd. Malik, N. Esa, M. Yusof, K. M. Yusoff, M. F. M. Hamid, M. R. TK Electrical engineering. Electronics Nuclear engineering Signals arrive out of phase at the intended receiver from collaborative beamforming (CB) nodes due to the instability in the output frequency signals of the universal software radio peripheral's (USRP) local oscillator (LO). These nodes including the target must synchronize their oscillator frequencies for coherent signal reception. In order to do this, frequencies and phases of the signals should be estimated in software defined radio (SDR) and smoothen with nonlinear filters such as the extended Kalman filter (EKF). The process noise parameters of the NI USRP-2920 nodes will have to be calculated and used with the EKF process noise covariance matrix. These nodes are green communication hardware devices where most of the hardware units are now software defined. This article uses the direct spectrum method to obtain the phase noise values at various frequency offsets of the NI USRP-2920 in order to calculate the power spectral density of fractional frequency fluctuation. By applying the power-law noise model to this obtained value, the generated white frequency noise and random walk frequency noise values are q1=1.93×10-21 and q2=5.86×10-18, respectively. University of Electronic Science and Technology of China 2016 Article PeerReviewed Dauda, U. S. and Nik Abd. Malik, N. and Esa, M. and Yusof, K. M. and Yusoff, M. F. M. and Hamid, M. R. (2016) Process noise parameters of beamforming green nodes. Journal of Electronic Science and Technology, 14 (2). pp. 111-117. ISSN 1674-862X https://www.scopus.com/inward/record.uri?eid=2-s2.0-85008616567&doi=10.11989%2fJEST.1674-862X.603151&partnerID=40&md5=3b58cad45d5adc15172cdff107ef6578 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Dauda, U. S. Nik Abd. Malik, N. Esa, M. Yusof, K. M. Yusoff, M. F. M. Hamid, M. R. Process noise parameters of beamforming green nodes |
| title | Process noise parameters of beamforming green nodes |
| title_full | Process noise parameters of beamforming green nodes |
| title_fullStr | Process noise parameters of beamforming green nodes |
| title_full_unstemmed | Process noise parameters of beamforming green nodes |
| title_short | Process noise parameters of beamforming green nodes |
| title_sort | process noise parameters of beamforming green nodes |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
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