The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Sistem pesawat tanpa pemandu (UAS) telah dibangunkan dan dikaji sebagai sistem komunikasi temporal untuk perkhidmatan kecemasan dan menyelamat semasa bencana, seperti gempa bumi dan kemalangan serius. Dalam model UAS biasa, beberapa kenderaan udara tanpa pemandu (UAV) digunakan untuk menyediakan perkhidmatan di kawasan yang luas. UAV terdiri daripada pemancar dan penerima untuk menghantar/menerima isyarat ke/dari stesen dan terminal daratan. Oleh itu, frekuensi pembawa isyarat yang dihantar dan diterima mengalami anjakan Doppler disebabkan oleh variasi dalam halaju garis penglihatan antara UAV dan terminal daratan. Oleh itu, dengan memerhatikan berbilang anjakan Doppler daripada UAV yang berbeza, adalah mungkin untuk mengesan kedudukan pengguna yang memiliki terminal komunikasi untuk UAS. Kajian ini bertujuan untuk mengemukakan metodologi pengesanan kedudukan berdasarkan kaedah kuasa dua terkecil kepada frekuensi anjakan Doppler. Selanjutnya, indeks ketepatan kedudukan baru dicadangkan, yang boleh digunakan sebagai indeks untuk mengukur kedudukan dengan tepat, bukannya kaedah pencairan ketepatan (DOP), yang digunakan untuk sistem kedudukan global (GPS). Simulasi komputer telah dijalankan untuk dua model laluan penerbangan yang berbeza untuk mengesahkan kebolehgunaan kaedah penentududukan yang dicadangkan dan indeks ketepatan kedudukan. Keputusan simulasi mengesahkan bahawa parameter, seperti laluan penerbangan, kedudukan awal dan halaju UAV, boleh dioptimumkan dengan menggunakan indeks ketepatan kedudukan yang dicadangkan.
Hiroyasu ISHIKAWA
Nihon University
Hiroki ONUKI
Nihon University
Hideyuki SHINONAGA
Toyo University
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Salinan
Hiroyasu ISHIKAWA, Hiroki ONUKI, Hideyuki SHINONAGA, "Method for Detecting User Positions with Unmanned Aerial Vehicles Based on Doppler Shifts" in IEICE TRANSACTIONS on Fundamentals,
vol. E102-A, no. 1, pp. 195-204, January 2019, doi: 10.1587/transfun.E102.A.195.
Abstract: Unmanned aircraft systems (UASs) have been developed and studied as temporal communication systems for emergency and rescue services during disasters, such as earthquakes and serious accidents. In a typical UAS model, several unmanned aerial vehicles (UAVs) are used to provide services over a large area. The UAV is comprised of a transmitter and receiver to transmit/receive the signals to/from terrestrial stations and terminals. Therefore, 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 that possesses a communication terminal for the UAS. 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, instead of the dilution-of-precision (DOP) method, which is used for global positioning systems (GPSs). A computer simulation was conducted for two different 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, the initial position, and velocity of the UAVs, can be optimized by using the proposed positioning accuracy index.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E102.A.195/_p
Salinan
@ARTICLE{e102-a_1_195,
author={Hiroyasu ISHIKAWA, Hiroki ONUKI, Hideyuki SHINONAGA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Method for Detecting User Positions with Unmanned Aerial Vehicles Based on Doppler Shifts},
year={2019},
volume={E102-A},
number={1},
pages={195-204},
abstract={Unmanned aircraft systems (UASs) have been developed and studied as temporal communication systems for emergency and rescue services during disasters, such as earthquakes and serious accidents. In a typical UAS model, several unmanned aerial vehicles (UAVs) are used to provide services over a large area. The UAV is comprised of a transmitter and receiver to transmit/receive the signals to/from terrestrial stations and terminals. Therefore, 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 that possesses a communication terminal for the UAS. 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, instead of the dilution-of-precision (DOP) method, which is used for global positioning systems (GPSs). A computer simulation was conducted for two different 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, the initial position, and velocity of the UAVs, can be optimized by using the proposed positioning accuracy index.},
keywords={},
doi={10.1587/transfun.E102.A.195},
ISSN={1745-1337},
month={January},}
Salinan
TY - JOUR
TI - Method for Detecting User Positions with Unmanned Aerial Vehicles Based on Doppler Shifts
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 195
EP - 204
AU - Hiroyasu ISHIKAWA
AU - Hiroki ONUKI
AU - Hideyuki SHINONAGA
PY - 2019
DO - 10.1587/transfun.E102.A.195
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E102-A
IS - 1
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - January 2019
AB - Unmanned aircraft systems (UASs) have been developed and studied as temporal communication systems for emergency and rescue services during disasters, such as earthquakes and serious accidents. In a typical UAS model, several unmanned aerial vehicles (UAVs) are used to provide services over a large area. The UAV is comprised of a transmitter and receiver to transmit/receive the signals to/from terrestrial stations and terminals. Therefore, 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 that possesses a communication terminal for the UAS. 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, instead of the dilution-of-precision (DOP) method, which is used for global positioning systems (GPSs). A computer simulation was conducted for two different 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, the initial position, and velocity of the UAVs, can be optimized by using the proposed positioning accuracy index.
ER -