@article{oai:doshisha.repo.nii.ac.jp:00026239,
 author = {阿部, 俊輔 and Abe, Shunsuke and 岩井, 誠人 and Iwai, Hisato and 笹岡, 秀一 and Sasaoka, Hideichi},
 issue = {2},
 journal = {同志社大学ハリス理化学研究報告, The Harris science review of Doshisha University},
 month = {Jul},
 note = {無線通信環境では，電波は建物やビル，障害物や壁により反射や回折，散乱を起こし，複数の異なった伝搬経路，マルチパスを経て受信点に到達する．このマルチパス環境では電波は互いに複雑に干渉し合い，電波の伝搬特性は空間的に大きく変動する．これは伝搬特性の局所性と呼ばれ，その局所性の範囲を超えた地点，つまり受信点からフェージングの相関距離以上離れた地点のフェージング変動は，基準となる受信点のものとは異なるものになる．先行研究において，このフェージングの相関距離以上離れた地点の伝搬特性を推定する他地点伝搬特性推定方式が検討されている．この手法では，マルチパス環境の各素波が平面波であるという前提のもとに，MUSIC法による到来方向推定と最小二乗法による複素振幅推定を用いて到来波環境を分析し，基準点から推定対象点までの位相差を考慮してマルチパスを合成することにより伝搬特性を推定している．この推定方式の2次元環境における基本的な推定特性は検討が進められているが，実際の環境である3次元環境に適応した方式はまだ確立されていない．よって本稿では，平面アレーアンテナを用いて3次元環境に適応させた新たな他地点伝搬特性推定法の検討を行う．, In a wireless communication environment, radio waves are reflected, diffracted and scattered by buildings and obstacles. Because radio waves propagate through the environment, mutual interference of the radio waves occurs and radio propagation properties, such as the amplitude and the phase of the received signal, vary significantly. It is called multipath fading. In addition, radio propagation properties fluctuate widely and spatially. In other words, the propagation properties are local information which can be obtained only at a certain location. In general, we cannot estimate the propagation properties at a remote location over the locality range of the multipath fading. Therefore we study a method to estimate the radio propagation properties at a remote location from a receiving point. An estimation method for such purpose has been studied. In the method, the multipath environment is analyzed by estimating the directions of arrival (DOAs) by the Multiple Signal Classification (MUSIC) method and the complex amplitudes by the least square method, respectively. Using the estimated DOAs and the complex amplitudes of the arriving waves, the propagation properties at the target point are estimated based on the plane wave assumption for each arriving wave. The estimation method has so far been studied assuming a 2-dimensional space. However, an estimation method of a 3-dimensional space has not been yet established. This paper discusses a new estimation method for adapting the method to a 3-dimensional space by using a planar array antenna., application/pdf},
 pages = {66--72},
 title = {3次元環境におけるMUSIC法を用いた他地点伝搬特性推定法},
 volume = {59},
 year = {2018},
 yomi = {アベ, シュンスケ and イワイ, ヒサト and ササオカ, ヒデイチ}
}