| Presentation | 2017-05-25 Study on Positioning Accuracy Index for User Position Detection Method Using Unmanned Aerial Vehicles Hiroyasu Ishikawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the typical unmanned aircraft system (UAS) model, several numbers of unmanned aerial vehicle (UAV) with the velocity of 40 to 100 km/h and the altitude of 150 to 1,000 meters shall be applied to the provision of wide service coverage. Therefore, Doppler shifts are occurred in the carrier frequency by a change in line-of-sight velocity between the UAV and the terrestrial terminal. By observing multiple Doppler shift values for different UAVs, it is possible to detect the position of the user. In order to evaluate the accuracy of the position detection method using multiple UAVs, we have been conducted computer simulations under several types of flight models. From the simulation results and Doppler frequency distributions, it was confirmed that the positioning accuracy depends on the number of UAVs, location of UAVs, and other setting parameters for UAVs. In this study, cosine value of inner product between multiple gradient vectors of the hyperboloid surface at arbitrary point in the evaluation target area is newly presented as the positioning accuracy index in order to express an influence of constellation and initial arrangement of multiple UAVs for position detection accuracy. Further, comparison of simulation results and new proposed evaluation index are conducted by computer simulation and numerical analysis so as to confirm the feasibility of proposed index. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Unmanned Aerial Vehicle / Doppler Shift / Positioning Accuracy Index / Flight Condition, / Gradient Vector |
| Paper # | SAT2017-3 |
| Date of Issue | 2017-05-18 (SAT) |
| Conference Information | |
| Committee | WBS / SAT |
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| Conference Date | 2017/5/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Utsunomiya Univ. Yoto Campus |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Coding, Modulation, Demodulation, Signal Processing Technique, etc. |
| Chair | Fumiaki Maehara(Waseda Univ.) / Takatoshi Sugiyama(Kogakuin Univ.) |
| Vice Chair | Masanori Hamamura(Kochi Univ. of Tech.) / Fumie Ono(NICT) / Toshinori Susuki(Tohoku Gakuin Univ.) / Hiroyuki Tsuji(NICT) |
| Secretary | Masanori Hamamura(Tokyo City Univ.) / Fumie Ono(Mitsubishi Electric) / Toshinori Susuki(Okinawa College) / Hiroyuki Tsuji(KDDI Research) |
| Assistant | Yusuke Kozawa(Ibaraki Univ.) / Akira Nakamura(Tokyo Univ. of Science) / Ryohei Nakamura(National Defense Academy) |
| Paper Information | |
| Registration To | Technical Committee on Wideband System / Technical Committee on Satellite Telecommunications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on Positioning Accuracy Index for User Position Detection Method Using Unmanned Aerial Vehicles |
| Sub Title (in English) | |
| Keyword(1) | Unmanned Aerial Vehicle |
| Keyword(2) | Doppler Shift |
| Keyword(3) | Positioning Accuracy Index |
| Keyword(4) | Flight Condition, |
| Keyword(5) | Gradient Vector |
| 1st Author's Name | Hiroyasu Ishikawa |
| 1st Author's Affiliation | Nihon University(Nihon Univ.) |
| Date | 2017-05-25 |
| Paper # | SAT2017-3 |
| Volume (vol) | vol.117 |
| Number (no) | SAT-52 |
| Page | pp.pp.13-18(SAT), |
| #Pages | 6 |
| Date of Issue | 2017-05-18 (SAT) |