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Paper Abstract and Keywords
Presentation 2019-05-22 16:30
Preliminary Experimental Study on a Two-Frequency Secondary-Radar System to Detect Pedestrians beyond Blind Corners
Keizo Inagaki (NICT), Motoki Shirai, Tetsuya Miura, Kunihisa Jitsuno, Tetsuya Kawanishi (Waseda Univ.)   エレソ技報アーカイブはこちら
Abstract (in Japanese) (See Japanese page) 
(in English) Authors are studying on a two-frequency secondary radar system to prevent traffic accidents between pedestrians and vehicles at intersections with poor visibility. In order to detect pedestrians over blind corners, it is preferable to use radio waves from HF to UHF bands. Because these frequency bands are already been very busy, the available bandwidth will be strongly limited. To achieve higher range resolution under the limited frequency bandwidth, we propose two-frequency CW radar with phase detection. Moreover, the pedestrian system should be simple secondary radar responding with doubled frequency signal from the input radio wave, to reduce the impact of complex reflections and scatterings at intersections.
In this paper, we will report on the principles of the proposed system, proof of concept experiment with cable emulation system, and basic experiment on range characteristics measured inside a large radio anechoic chamber.
Keyword (in Japanese) (See Japanese page) 
(in English) Two-frequency secondary-radar / frequency doubler / beyond blind corner / pedestrians detection / cable emulation / radio anechoic chamber / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 46, MWP2019-5, pp. 19-22, May 2019.
Paper # MWP2019-5 
Date of Issue 2019-05-15 (MWP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee MWP  
Conference Date 2019-05-22 - 2019-05-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave Photonics, etc. 
Paper Information
Registration To MWP 
Conference Code 2019-05-MWP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Preliminary Experimental Study on a Two-Frequency Secondary-Radar System to Detect Pedestrians beyond Blind Corners 
Sub Title (in English)  
Keyword(1) Two-frequency secondary-radar  
Keyword(2) frequency doubler  
Keyword(3) beyond blind corner  
Keyword(4) pedestrians detection  
Keyword(5) cable emulation  
Keyword(6) radio anechoic chamber  
1st Author's Name Keizo Inagaki  
1st Author's Affiliation National Institute of Information and Communications Technology (NICT)
2nd Author's Name Motoki Shirai  
2nd Author's Affiliation Waseda University (Waseda Univ.)
3rd Author's Name Tetsuya Miura  
3rd Author's Affiliation Waseda University (Waseda Univ.)
4th Author's Name Kunihisa Jitsuno  
4th Author's Affiliation Waseda University (Waseda Univ.)
5th Author's Name Tetsuya Kawanishi  
5th Author's Affiliation Waseda University (Waseda Univ.)
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Date Time 2019-05-22 16:30:00 
Presentation Time 25 
Registration for MWP 
Paper # IEICE-MWP2019-5 
Volume (vol) IEICE-119 
Number (no) no.46 
Page pp.19-22 
#Pages IEICE-4 
Date of Issue IEICE-MWP-2019-05-15 

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