CiNii Articles - X-band radar

1

Monitoring of Sakurajima Volcanic Eruption Columns with Marine Radar -Results of Observations in 2018- [in Japanese]

真木雅之 , 小堀壮彦 , 西隆昭 , 藤吉康志 , 徳島秀彦 , 佐藤英一 , 井口正人 , 爲栗健

… The present paper describes the results of observational studies of Sakurajima volcanic eruption columns using an X-band marine radar. … The X-band marine radar was set up at the Kurokami Observatory located approximately 4 km from the Sakurajima Minamidake vent. …

京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B 63(B), 136-148, 2020-12

IR
2

Validation of Analyzed Winds Based on Greenhouse Damage by Typhoon Faxai (2019) [in Japanese]

飯塚聡 , 横山仁 , 清水慎吾 , 鈴木真一

… 気象庁のメソスケールモデル（MSM）とローカル予測モデル（LFM）および東京の首都圏に配備されたXバンドドップラーレーダーから推定された風を雲分解モデルに同化して得られた地上10mでの風の解析値を比較すると，データ同化で得られた風の解析値は千葉県と茨城県の多くのアメダス観測所で観測された地上10mでの風速と風向を再現していることが確認された．また，データ同化による解析値の風速・風向は，千葉 …

主要災害調査 = Natural Disaster Research Report (57), 1-16, 2020-09

IR DOI
3

X-Band 300W High-Power GaN HEMT for Marine Radar Systems [in Japanese]

西原信 , 青嶋真 , 宮澤直行

SEIテクニカルレビュー (197), 23-26, 2020-07
4

Possibility of quantitative blowing snow estimation using the X-band multi-parameter radar [in Japanese]

大宮哲 , 國分徹哉 , 松下拓樹 , 高橋丞二 , 松澤勝

雪氷 : journal of the Japanese Society of Snow and Ice 82(3), 145-156, 2020-05
5

Amplitude Statistics of Clutter by Hybrid Low Pressure Observed by X-band Radar [in Japanese]

佐山周次

電気学会研究会資料. IM = The papers of technical meeting on instrumentation and measurement, IEE Japan 2020(8-16), 11-16, 2020-03-27
6

Experiment of ash fall using drone for improving accuracy estimation volcanic ash fall [in Japanese]

坂井紀之 , 寺谷拓治 , 内田良始 , 吉村知祐 , 田中剛

新砂防 = Journal of the Japan Society of Erosion Control Engineering : 砂防学会誌 72(6), 35-41, 2020-03
7

Suppression of Ground Clutter and Detection of Large Scale Buildings by Log-normal/CFAR [in Japanese]

池田耕大 , 佐山周次

防衛大学校理工学研究報告 = Scientific and engineering reports of the National Defense Academy 57(2), 1-10, 2020-03
8

A BAYESIAN APPROACH TO MAPPING SYNTHETIC NEARSHORE BATHYMETRY [in Japanese]

OKABE Takumi , SHIMOZONO Takenori , TAKEWAKA Satoshi , MASUDA Takahiro , MATSUNO Hideaki , SUZUKI Takayuki , MATSUO Kojiro

<p>　本研究では，複数の計測手法で取得した同じ領域の地形データを，ベイズ推定によって融合する手法を提案する．測量精度や計測面積など，特徴が異なる費用対効果の高い4つの地形計測・水深推定手法を用いてkmオーダーの広域海底地形データを取得し，深浅測量成果と比較することで誤差情報を明らかにした．この誤差の頻度分布が正規分布で近似できる特徴を用いて，共役事前分布により各々の水深情報を誤差情報 …

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 76(2), I_1345-I_1350, 2020

J-STAGE
9

Ground Validation of GPM DPR Algorithms by Hydrometeor Measurements and Polarimetric Radar Observations of Winter Snow Clouds: A Case Study on 4 February 2018

Kamamoto Rimpei , Suzuki Kenji , Kawano Tetsuya , Hanado Hiroshi , Nakagawa Katsuhiro , Kaneko Yuki

… <p>Two products from the Global Precipitation Measurement (GPM) Dual-frequency Precipitation Radar (DPR) algorithms, a flag of intense solid precipitation above the −10°C height ("flagHeavyIcePrecip") and a classification of precipitation type ("typePrecip") were validated by ground-based hydrometeor measurements and X-band multi-parameter (X-MP) radar observations of snow clouds on 4 February 2018. …

SOLA 16(0), 115-119, 2020

J-STAGE
10

Integrated design of X-band phased array antenna with LTCC 3D T/R module

Tan Cheng , Yu Zhongjun , Sun Huifeng , Shi Ge , Liu Xiao , Zhou Ying , Li Gaoang

… <p>In this paper, a novel design scheme of X-band phased array antenna is introduced. … The whole system adopts the vertical interconnected three-dimensional multi-layer technology for the spaceborne synthetic aperture radar (SAR) system. …

IEICE Electronics Express 17(4), 20190714-20190714, 2020

J-STAGE
11

Monitoring the rainfall intensity at two active volcanoes in Indonesia and Japan by small-compact X-band radars

Syarifuddin Magfira , Indri Hapsari Ratih , Legono Djoko , Oishi Satoru , Ganara Mawanda Hanggar , Aisyah Nurnaning , Shimomura Makoto , Nakamichi Haruhisa , Iguchi Masato

… The 3rd International Conference of Water Resources Development and Environmental Protection 12-13 October 2019, MalangSince 2015, collaborative research conducted by Indonesian and Japan scientists has initiated the installation of small X-band Multi-Parameter (X-MP) radars to mitigate the occurrence of rainfall-induced lahar in three active volcanoes in Indonesia and Japan: Merapi, Sinabung, and Sakurajima. …

IOP Conference Series: Earth and Environmental Science (437), 2020

IR
12

Detection of Ship Embedded in Sea Clutter Observed by an X-band Radar [in Japanese]

佐山周次

電気学会研究会資料. PI = The papers of Technical Meeting on "Perception Information", IEE Japan, 2019(81-89), 7-12, 2019-12-20
13

Detection of Ship Embedded in Sea Clutter Observed by an X-band Radar [in Japanese]

佐山周次

電気学会研究会資料. IM = The papers of technical meeting on instrumentation and measurement, IEE Japan 2019(42-50), 7-12, 2019-12-20
14

Suppression of Weather Clutter and Detection of Light Buoy Observed by an X-band Radar [in Japanese]

佐山周次

電気学会研究会資料. IM = The papers of technical meeting on instrumentation and measurement, IEE Japan 2019(28-34), 1-6, 2019-11-28
15

Suppression of Ground Clutter and Detection of Large Scale Buildings by Weibull/CFAR [in Japanese]

飯田大智 , 佐山周次

防衛大学校理工学研究報告 = Scientific and engineering reports of the National Defense Academy 57(1), 21-29, 2019-09
16

Detailed Analysis on Cumulus Cloud In Early Developing Stage by Using Phased Array Radar [in Japanese]

中北英一 , 高尾充政 , 新保友啓 , 山口弘誠 , 中川勝広

… Nakakita et al.(2015) developed a prediction system for torrential rainfall using vertical vorticity in a first echo using by X-band Polarimetric Doppler radar. … In this study, we analyzed the cumulous cloud with higher spational temporal resolution by using Phased Array Radar (PAR). …

京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B 62(B), 432-440, 2019-09

IR
17

A Study of Cumulonimbus in Generating and Developing Stage Observed by Ka-Band Cloud Radar and Multi-sensor [in Japanese]

中北英一 , 新保友啓 , 大東忠保 , 山口弘誠

… To investigate the initiation process, we conducted observation in Kobe City, on August 2018 using a Ka-band Doppler radar, X-band radars and some sensors. … Developing cumulonimbus clouds and non-precipitating cumulus were observed by Ka-band radar, and the former has high Radar reflectivity (Zh) in the upper part. …

京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B 62(B), 399-431, 2019-09

IR
18

The Characteristics of the Heavy Rainfall Event in July 2018 and Global Warming [in Japanese]

中北英一 , 小坂田ゆかり , 山口弘誠

… We found a few hail in not so high clouds of this event compared with those of a typical back-building type heavy rainfall during Baiu season by analyzing the three-dimensional cloud information obtained from X-band multi-polarimetric Doppler radar. …

京都大学防災研究所年報. A = Disaster Prevention Research Institute Annuals. A 62(A), 1-5, 2019-09

IR
19

Suppression of Ground Clutter and Detection of Large Scale Buildings by Log-normal/CFAR [in Japanese]

佐山周次

電気学会研究会資料. IM = The papers of technical meeting on instrumentation and measurement, IEE Japan 2019(24-27), 1-6, 2019-07-05
20

Suppression of Ground Clutter and Detection of Large Scale Buildings by Weibull/CFAR [in Japanese]

佐山周次

電気学会研究会資料. IM = The papers of technical meeting on instrumentation and measurement, IEE Japan 2019(15-23), 35-40, 2019-03-15

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