2017 Fiscal Year Final Research Report
Method for Detecting User Positions with Unmanned Aerial Vehicles based on Doppler shifts
| Project/Area Number |
15K06122
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Measurement engineering
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| Research Institution | Nihon University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 無人航空機システム / 無人航空機 / ドップラシフト / 最小２乗法 / ユーザ位置検出 / 位置検出精度 / 測位精度指標 |
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| Outline of Final Research Achievements |
In the unmanned aircraft systems (UASs), several unmanned aerial vehicles (UAVs) are used to provide services over a large area. Here, the carrier frequencies of the transmitted and received signals experience Doppler shifts due to the variations in the line-of-sight velocity between the UAV and the terrestrial terminal. Thus, by observing multiple Doppler shifts from different UAVs, it is possible to detect the position of a user.
This study aims to present a methodology for position detection based on the least-squares method to the Doppler shift frequencies. Further, a positioning accuracy index is newly proposed, which can be used as an index for measuring the position accurately.
A computer simulation was conducted for flight route models to confirm the applicability of the proposed positioning method and the positioning accuracy index. The simulation results confirm that the parameters, such as the flight route can be optimized by using the proposed positioning accuracy index.
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| Free Research Field |
無線通信工学
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