白井研究室の研究業績
2008年度(平成20年度)
白井研究室で行われた研究のうち,論文等の形で学術論文誌等に公表されたものを紹介します.
- 論文 等
- 2009. 2;
R. Sato,H. Shirai;
"Efficient Ray-launching Method For 2D Indoor Propagation Analysis,"
IEICE Trans. on Electronics, Vol.E92-C, No.1, pp.40-45.
[Abstract]:
This paper presents an easy and efficient modification
of simplified 2D ray-launching method, by approximately
including multiple reflection effect inside wall for indoor environment.
In order to precisely carry out the ray-launching procedure
inside lossy wall, a simple modification using true real refraction
angle is first introduced, instead of complex one. Furthermore,
an efficient approximation is carried out to collect the internal
multiple reflected rays into the primary one. We here call it
collective ray approach. Consequently, it is confirmed from the
detailed considerations that the present ray representations obtained
by introducing the real refraction angle are well suitable
for indoor propagation analysis, and in particular the collective
ray solution can be utilized confidently even when the internal
reflections strongly contribute to the propagation feature of the
considered indoor environment.
- 国際会議発表 等
- 2008. 6;
A. Amornthipparat, H. Shirai, and K. Yonezawa, and T. Inoue,
"NLOS Path Loss Evaluation for Street-Cell Environment,"
Proc. of HUT-ICCE 2008, pp.336--340, Vietnam.
- 2008. 7;
A. Kanezaki,T. Sakai, S. Watanabe, A. Hirata, and H. Shirai,
"Theoretical Analysis of Temperature Elevation in a Human Body Exposed to Millimeter Wave,"
Proc. of
Progess in Elecromagnetics Research Symposium 2008 in Cambridge, CDROM, Cambridge, USA.
- 2008. 7;
R. Sato, and H. Shirai,
"Simplified Ray-Launching Analysis for Indoor Propagation Including
Multiple Reflection Effect Inside Walls,"
Proc. of
2008 IEEE International Symposium on Antennas and Propagation
and USNC/URSI National Radio Science Meeting, CDROM, CA, USA.
- 2008. 12;
A. Kanezaki, S. Watanabe, A. Hirata, and H. Shirai,
"Theoretical analysis for temperature elevation of human body due to millimeter wave exposure,"
Proc. of
4th Cairo International Biomedical Engineering Conference, CDROM, Cairo, Egypt.
- 学会, 研究会発表 等
- 2008. 6;
金崎昭夫,渡辺聡一, 平田晃正, 白井宏,
"理論解析に基づくミリ波帯電波照射による体表温度上昇の層構造依存性に関する検討,"
信学技報,vol.108,no.97,EMCJ2008-20,pp.77-82.
- 2008. 9;
金崎昭夫,長岡智明,渡辺聡一,白井宏,
"1-100 GHz帯平面波照射による一次元人体モデル内SARの周波数特性,"
電子情報通信学会,2008年ソサイエティ大会,B-4-27.
- 2008. 11;
小島成裕,石川正行, 白井宏,
"散乱断面積からの複素誘電率推定法に関する考察,"
第37回電磁界理論シンポジウム資料,EMT-08-89.
- 2008. 11;
金崎昭夫,渡辺聡一,平田晃正, 白井宏,
"ミリ波帯電波照射による体表温度上昇に関与した電気的特性の検討,"
第37回電磁界理論シンポジウム資料,EMT-08-97.
- 2008. 11;
前川耕一郎,白井宏,
"人体近傍に置かれたアンテナからの放射解析とその可視化表現,"
第37回電磁界理論シンポジウム資料,EMT-08-115.
- 2008. 11;
中西崇之,白井宏, 米澤健也,井上隆,
"外部から建物内へ透過する電波の近似推定法の検討,"
第37回電磁界理論シンポジウム資料,EMT-08-117.
- 2009. 3;
石川正行,小島成裕, 白井宏,
"RCS値からの複素誘電率推定法に関する考察-時間領域による結果-,"
電子情報通信学会,2009年総合大会,C-1-4.
- その他
- 2008.7;
白井 宏,"アンテナ工学ハンドブック(第2版),"
電子情報通信学会 編, 執筆担当 12.2.4-6,12.2.10, オーム社