Virtual multi-antenna array for estimating the direction of a transmitter : system, bounds, and experimental results
A method is proposed to estimate the direction of a radio-frequency transmitter with a mobile single-antenna receiver. By considering the received signal at several points along its trajectory, the receiver implicitly creates a virtual multiantenna array, which can be used to estimate the direction...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Online Access: | https://hdl.handle.net/10356/102694 http://hdl.handle.net/10220/47841 |
| _version_ | 1826117407978029056 |
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| author | Quitin, Francois De Doncker, Philippe Horlin, Francois Tay, Wee Peng |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Quitin, Francois De Doncker, Philippe Horlin, Francois Tay, Wee Peng |
| author_sort | Quitin, Francois |
| collection | NTU |
| description | A method is proposed to estimate the direction of a radio-frequency transmitter with a mobile single-antenna receiver. By considering the received signal at several points along its trajectory, the receiver implicitly creates a virtual multiantenna array, which can be used to estimate the direction of the transmitter. Virtual arrays differ from conventional multiantenna arrays in two ways: 1) the position and orientation of each antenna in the virtual array depend on the movement of the receiver and are not known a priori; and 2) the local oscillator (LO) frequency offset between the transmitter and the receiver adds a phase offset to the signal received by each antenna of the virtual array, which must be estimated and compensated. The first problem is solved by using an inertial measurement unit, which can provide the relative position of the receiver for short time durations. The second problem is solved by estimating the LO frequency offset jointly with the direction of the transmitter by extending the MUSIC algorithm for multidimensional estimation. We investigate the Cramér-Rao lower bound of the proposed estimator, which provides some insights in the design of our system. We implement our system on a software-defined radio testbed and present some measurement results obtained in a controlled environment. |
| first_indexed | 2024-10-01T04:27:07Z |
| format | Journal Article |
| id | ntu-10356/102694 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:27:07Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/1026942020-03-07T14:00:34Z Virtual multi-antenna array for estimating the direction of a transmitter : system, bounds, and experimental results Quitin, Francois De Doncker, Philippe Horlin, Francois Tay, Wee Peng School of Electrical and Electronic Engineering Direction of Arrival Virtual Antenna Array DRNTU::Engineering::Electrical and electronic engineering A method is proposed to estimate the direction of a radio-frequency transmitter with a mobile single-antenna receiver. By considering the received signal at several points along its trajectory, the receiver implicitly creates a virtual multiantenna array, which can be used to estimate the direction of the transmitter. Virtual arrays differ from conventional multiantenna arrays in two ways: 1) the position and orientation of each antenna in the virtual array depend on the movement of the receiver and are not known a priori; and 2) the local oscillator (LO) frequency offset between the transmitter and the receiver adds a phase offset to the signal received by each antenna of the virtual array, which must be estimated and compensated. The first problem is solved by using an inertial measurement unit, which can provide the relative position of the receiver for short time durations. The second problem is solved by estimating the LO frequency offset jointly with the direction of the transmitter by extending the MUSIC algorithm for multidimensional estimation. We investigate the Cramér-Rao lower bound of the proposed estimator, which provides some insights in the design of our system. We implement our system on a software-defined radio testbed and present some measurement results obtained in a controlled environment. Accepted version 2019-03-18T08:30:45Z 2019-12-06T20:59:15Z 2019-03-18T08:30:45Z 2019-12-06T20:59:15Z 2018 Journal Article Quitin, F., De Doncker, P., Horlin, F., & Tay, W. P. (2018). Virtual multi-antenna array for estimating the direction of a transmitter : system, bounds, and experimental results. IEEE Transactions on Vehicular Technology, 67(2), 1510-1520. doi:10.1109/TVT.2017.2762728 0018-9545 https://hdl.handle.net/10356/102694 http://hdl.handle.net/10220/47841 10.1109/TVT.2017.2762728 en IEEE Transactions on Vehicular Technology © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: https://doi.org/10.1109/TVT.2017.2762728. 12 p. application/pdf |
| spellingShingle | Direction of Arrival Virtual Antenna Array DRNTU::Engineering::Electrical and electronic engineering Quitin, Francois De Doncker, Philippe Horlin, Francois Tay, Wee Peng Virtual multi-antenna array for estimating the direction of a transmitter : system, bounds, and experimental results |
| title | Virtual multi-antenna array for estimating the direction of a transmitter : system, bounds, and experimental results |
| title_full | Virtual multi-antenna array for estimating the direction of a transmitter : system, bounds, and experimental results |
| title_fullStr | Virtual multi-antenna array for estimating the direction of a transmitter : system, bounds, and experimental results |
| title_full_unstemmed | Virtual multi-antenna array for estimating the direction of a transmitter : system, bounds, and experimental results |
| title_short | Virtual multi-antenna array for estimating the direction of a transmitter : system, bounds, and experimental results |
| title_sort | virtual multi antenna array for estimating the direction of a transmitter system bounds and experimental results |
| topic | Direction of Arrival Virtual Antenna Array DRNTU::Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/102694 http://hdl.handle.net/10220/47841 |
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