| Presentation | 2010-03-04 Direction Finding Performances in UWB Short-Range Phase-Comparison Monopulse Radars Hironori Enkouji, Takehiko Nishide, Natsuki Hashimoto, Naohiko Iwakiri, Takehiko Kobayashi, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Ultra wideband (UWB) vehicular radars have attracted attention from a viewpoint of reducing traffic accident victims. This report presents experimental and numerical evaluation of direction finding capabilities of a phase-comparison monopulse UWB radar. Direction to a target (a trihedral corner reflector) was measured using a Ka-band UWB pulse radar equipped with a two-element monopulse systems in a radio anechoic chamber. The delta-over-sigma DOS) patterns indicating the target direction were obtained with two methods: (a) employing a microwave hybrid coupler connecting to the two antenna ports to generate differential (delta) and summation (sigma) signals in the radio frequency region, and (b) directly detecting the two antenna outputs with use of orthogonal demodulators and calculating the delta and the sigma in the baseband region. Imperfectness of the microwave hybrid coupler and other factors substantially influenced the accuracy of the resulting DOS patterns, in particular with the method (a). The DOS patterns were analyzed and calculated to dissect the impacts of the error factors upon the direction finding performances. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ultra wideband / ultra wideband radar / phase-comparison monopulse / direction finding |
| Paper # | IT2009-85,ISEC2009-93,WBS2009-64 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2010/2/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Information Security (ISEC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Direction Finding Performances in UWB Short-Range Phase-Comparison Monopulse Radars |
| Sub Title (in English) | |
| Keyword(1) | ultra wideband |
| Keyword(2) | ultra wideband radar |
| Keyword(3) | phase-comparison monopulse |
| Keyword(4) | direction finding |
| 1st Author's Name | Hironori Enkouji |
| 1st Author's Affiliation | Wireless Systems Laboratory, Tokyo Denki University() |
| 2nd Author's Name | Takehiko Nishide |
| 2nd Author's Affiliation | Wireless Systems Laboratory, Tokyo Denki University |
| 3rd Author's Name | Natsuki Hashimoto |
| 3rd Author's Affiliation | Wireless Systems Laboratory, Tokyo Denki University |
| 4th Author's Name | Naohiko Iwakiri |
| 4th Author's Affiliation | Wireless Systems Laboratory, Tokyo Denki University |
| 5th Author's Name | Takehiko Kobayashi |
| 5th Author's Affiliation | Wireless Systems Laboratory, Tokyo Denki University |
| Date | 2010-03-04 |
| Paper # | IT2009-85,ISEC2009-93,WBS2009-64 |
| Volume (vol) | vol.109 |
| Number (no) | 445 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |