Efficient Range Estimation in Beat Radio Interferometry
The beat radio interferometry (BRI) is a novel ranging scheme that achieves high accuracy with low-cost devices. A major problem with BRI is the lack of an efficient range estimation method that is valid in general measurement configurations and accommodates large-scale scenarios. In this paper, we...
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IEEE
2017-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/7874119/ |
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| author | Bing Xu Wangdong Qi Li Wei Su Zhang |
| author_facet | Bing Xu Wangdong Qi Li Wei Su Zhang |
| author_sort | Bing Xu |
| collection | DOAJ |
| description | The beat radio interferometry (BRI) is a novel ranging scheme that achieves high accuracy with low-cost devices. A major problem with BRI is the lack of an efficient range estimation method that is valid in general measurement configurations and accommodates large-scale scenarios. In this paper, we present a new model of BRI and reveal that range estimation in it is equivalent to single tone frequency estimation. Such a revelation has two natural outcomes: the first is the Cramer-Rao lower bound (CRLB) of BRI range estimation; the second is an efficient fast Fourier transform (FFT)-based method that works in arbitrary measurement configurations and large-scale scenarios. Simulation results show that the FFT-based method asymptotically attains the CRLB and is orders of magnitude faster than currently available methods. |
| format | Article |
| id | doaj-art-ef1b547b28d64b97927478312683a364 |
| institution | Kabale University |
| issn | 2169-3536 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-ef1b547b28d64b97927478312683a3642025-01-31T23:04:22ZengIEEEIEEE Access2169-35362017-01-0153834384010.1109/ACCESS.2017.26797247874119Efficient Range Estimation in Beat Radio InterferometryBing Xu0https://orcid.org/0000-0003-1236-893XWangdong Qi1https://orcid.org/0000-0003-1395-2679Li Wei2Su Zhang3PLA University of Science and Technology, Nanjing, ChinaPLA University of Science and Technology, Nanjing, ChinaPLA University of Science and Technology, Nanjing, ChinaPLA University of Science and Technology, Nanjing, ChinaThe beat radio interferometry (BRI) is a novel ranging scheme that achieves high accuracy with low-cost devices. A major problem with BRI is the lack of an efficient range estimation method that is valid in general measurement configurations and accommodates large-scale scenarios. In this paper, we present a new model of BRI and reveal that range estimation in it is equivalent to single tone frequency estimation. Such a revelation has two natural outcomes: the first is the Cramer-Rao lower bound (CRLB) of BRI range estimation; the second is an efficient fast Fourier transform (FFT)-based method that works in arbitrary measurement configurations and large-scale scenarios. Simulation results show that the FFT-based method asymptotically attains the CRLB and is orders of magnitude faster than currently available methods.https://ieeexplore.ieee.org/document/7874119/Beat radio interferometryradio interferometric positioning systemrange estimationfrequency estimationFFT-based method |
| spellingShingle | Bing Xu Wangdong Qi Li Wei Su Zhang Efficient Range Estimation in Beat Radio Interferometry IEEE Access Beat radio interferometry radio interferometric positioning system range estimation frequency estimation FFT-based method |
| title | Efficient Range Estimation in Beat Radio Interferometry |
| title_full | Efficient Range Estimation in Beat Radio Interferometry |
| title_fullStr | Efficient Range Estimation in Beat Radio Interferometry |
| title_full_unstemmed | Efficient Range Estimation in Beat Radio Interferometry |
| title_short | Efficient Range Estimation in Beat Radio Interferometry |
| title_sort | efficient range estimation in beat radio interferometry |
| topic | Beat radio interferometry radio interferometric positioning system range estimation frequency estimation FFT-based method |
| url | https://ieeexplore.ieee.org/document/7874119/ |
| work_keys_str_mv | AT bingxu efficientrangeestimationinbeatradiointerferometry AT wangdongqi efficientrangeestimationinbeatradiointerferometry AT liwei efficientrangeestimationinbeatradiointerferometry AT suzhang efficientrangeestimationinbeatradiointerferometry |