工学博士, 東京大学

Millimeter Wave Radar for Collision Avoidance

Measurement of Dielectric Constant using Microwave

Survivor Search Radar

Measurement of Respiration and Heart Rate

Short Range Radar

Pulse Compression GPR

Landmine Detection

GPR

Groud Penetrating Radar

生存者探査レーダ

誘電率測定

心拍や呼吸の計測法

マイクロ波変位センサ

ミリ波レーダ

自動車レーダ

ベースバンドパルスレーダ

ＦＭ-ＣＷレーダ

近距離レーダ

対人地雷探査レーダ

パルス圧縮地中レーダ

遺跡探査用地中・水中レーダ

地中レーダ

Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Measurement engineering

Mar. 1967
The University of Electro-Communications, Graduate School, Division of Electro Communications, 電波工学専攻

Mar. 1965
The University of Electro-Communications, Faculty of Electro Communications, 電波通信学科海上通信専攻

May 1995 - May 1998
英文論文誌編集委員, 電子情報通信学会, Society

1996 - 1998
理事, 日本リモートセンシング学会, Society

1996
評議委員, 日本リモートセンシング学会, Society

Sep. 1992
環境システム計測制御自動化研究会優秀論文賞

May 1979
昭和53年度日本航海学会論文賞

Detection and Classification of Closely located Targets by Ground Penetrating Radar Using Superresolution Signal Processing Techniques
Shanker Man Shrestha; Ikuo Arai
IGARS2003, IGRASS 2003,IEEE Con, Jul. 2003, Peer-reviwed
International conference proceedings, English

Coded Pulse Signal Subsurface Radar
Yoshiyuki Tomizawa; Ikuo arai
Electronics and Communications in Japan, Vol.J83-B, No.10, pp.1462-1470, Oct. 2002
English

SNR improvement of radar signal by using stub tuner with delay line
毛馬内洋典; 荒井郁男
電子情報通信学会，信学技報 SANE2002-18, May 2002
Japanese

遅延線を用いたスタブチュ－ナによるレーダ信号のS/N向上
毛馬内洋典; 荒井郁男
電子情報通信学会 信学技報, SANE2002, 18, 43, May 2002
Scientific journal, Japanese

Microwave Life-Detector using a FM-CW signal
神田功; 荒井郁男
電子情報通信学会，信学技報 SANE2001-111, Dec. 2001
Japanese

スペクトル補間による連続波方式地中レーダのタイムサイドローブ低減法
横田一豊; 三輪空司; 荒井郁男
電子情報通信学会，信学技報 SANE2001-69, Oct. 2001
Japanese

クロスホール計測による反射体の2次元位置推定へのMUSIC法の適用
三輪空司; 荒井郁男
電子情報通信学会，信学技報 SANE2001-69, Oct. 2001
Japanese

インテリジェント非開削工法の開発～他埋設物検知用レーダシステムの開発～
中内啓雅; 林光俊; 飯塚健二; 野津俊光; 鈴木盛雄; 久島建司; 荒井郁男
電子情報通信学会，信学技報 SANE2001-71, Oct. 2001
Japanese

HDD工法用地中レーダアンテナの検討
野津俊光; 石井啓二朗; 中内啓雅; 林光俊; 飯塚健二; 荒井郁男
電子情報通信学会，信学技報 SANE2001-72, Oct. 2001
Japanese

Polarimetric Crosshole Measurement for Characterization of Subsurface Cavity in Granite
T. Miwa; M. Sato; I. Arai
Proceedings of PIEARS 2001, 354, Sep. 2001
English

水平偏波ボアホールレーダのための導体円筒状磁気ボウタイアンテナの地中特性
三輪空司; 荒井郁男; 富澤良行
電子情報通信学会，信学技報 AP2001-36, Jun. 2001
Japanese

地中レーダの高分解能化のためのFFTとMUSIC アルゴリズム組合せによる信号処理
シュレスタ シャンカーマン; 荒井郁男; 三輪空司
電子情報通信学会信学技報，SANE2000-181, SAT2000-130, 39-46, Feb. 2001
Japanese

Reduction of Surface Coupling in FM-CW Radar for Deep Archaeological Objects
Takashi Miwa; Hayato Oda Ikuo Arai; Yoshiyuki Tomizawa
Proc. of Int. Conf. on GPR in Archaeology, 18-19, Feb. 2001
English

FM-CW 地中レーダにおけるカップリングの影響軽減手法について
織田隼人; 三輪空司; 荒井郁男
電子情報通信学会信学技報，A・P 2000-166, SANE 2000-147, 99-105, Jan. 2001
Japanese

FM-CW 信号を用いた高精度近距離レーダ
浜田和亮; 本村和磨; 荒井郁男
電子情報通信学会信学技報，A・P 2000-167, SANE 2000-148, 107-114, Jan. 2001
Japanese

2次元散乱問題におけるIE-MEI法の適用範囲
廣瀬雅信; 高田潤一; 荒井郁男
電子情報通信学会，信学技報, SANE2000-162, Jan. 2001
Japanese

Signal processing of ground penetrating radar using super resolution technique
SM Shrestha; Arai, I; T Miwa; Y Tomizawa
PROCEEDINGS OF THE 2001 IEEE RADAR CONFERENCE, IEEE, 300-305, 2001, Ground Penetrating Radar (GPR) using electromagnetic pulse required high resolution due to its narrow bandwidth nature. The rising requirement for high resolution lead to specific demands far improved prediction methods, ah requiring many aspects to be examined. In this paper the application possibility. of super resolution method MUSIC (Multiple Signal Classification) algorithm and FFT (Fast Fourier Transform) ape examined Combined Processing Method (CPM) of time domain response of MUSIC and IFFT (Inverse Fast Fourier Transform) is proposed for signal processing of GPR for the first time. Simulation and experimental results show that CPM has both high resolution and high receiving signal level than at her conventional signal processing methods.
International conference proceedings, English

Survivor search radar system for persons trapped under earthquake rubble
Arai, I
APMC 2001: ASIA-PACIFIC MICROWAVE CONFERENCE, VOLS 1-3, PROCEEDINGS, IEEE, 663-668, 2001, A survivor search radar system that employs 1.2 GHz band microwaves to search for survivors that have been trapped beneath collapsed building or nibble after an earthquake has been developed. Because microwaves can pass through the walls, nibble and other such obstacles, they can be used to detect the breathing and other slight movements of persons who have survived the disaster, even if they are buried under rubble The performance of this survivor search radar was confirmed by experiments using models of collapsed buildings. We further developed radar survivor search system that employs pulse Doppler radar, which can measure the breathing of survivors and the distance to them. Experiments with a prototype of that system demonstrated its ability to detect the presence of survivors and determine their location.
International conference proceedings, English

マイクロ波を用いた比誘電率測定の一方式
請川耕作; 荒井郁男; 本村和磨
2001年電子情報通信学会総合大会，エレクトロニクス１, 163, 2001
Japanese

A novel subsurface radar using a short chirp signal to expand the detection range
Yoshiyuki TOMIZAWA; Masanobu HIROSE; Ikuo ARAI; Kazuo TANABE
IEICE Trans. Commun., E83-B, 10, 2427-2434, Oct. 2000
English

符号化パルス地中レーダの一方
富澤良行; 荒井郁男
電子情報通信学会論文誌, J83-B, 10, 1462-1470, Oct. 2000
Japanese

Pulse compression subsurface radar
Ikuo ARAI; Yoshiyuki TOMIZAWA; Masanobu HIROSE
IEICE Trans. Commun., E83-B, 9, 1930-1937, Sep. 2000
English

Analysis of resistor-loaded rectanguler dipole antenna for subsurface radar
Takashi MIWA; Takayuki YANAGISAWA; Yoshiyuki TOMIZAWA; Ikuo ARAI
proc. ISAP2000, 1685-1688, Aug. 2000
English

マイクロ波センサを用いた路面プロフィルメータの一方式
本村和磨; 荒井郁男; 廣瀬雅信
電気学会計測研究会，IM-00-13, Jun. 2000
Japanese

地中レーダ画像の距離と方位方向の並列処理による分解能向上について
大西綾乃; 富澤良行; 荒井郁男
日本文化財探査学会第３回大会, 14-15, May 2000
Japanese

A small prospecting radar system
Takaharu NAKAUCHI; Ikuo ARAI; Hideki HAYAKAWA
Proc. 8th Int. Conf. of GPR, 548-551, May 2000
English

自動車レーダにおけるアクティブリフレクタの効果
島田 匠; 荒井郁男
2000年電子情報通信学会総合大会, B-2-1, 214, Mar. 2000
Japanese

地中レーダにおけるアンテナ地上高対エコーレベルの関係について
柳沢孝幸; 広瀬雅信; 富澤良行; 荒井郁男
2000年電子情報通信学会総合大会, B-2-17, 230, Mar. 2000
Japanese

マイクロ波路面プロフィルメータの開発
本村和磨; 荒井郁男
分子科学研究所技術研究会報告, Mar. 2000
Japanese

電波による埋没生存者の存在および位置計測の一方法
森 茂雄; 後藤眞二; 荒井郁男
電子情報通信学会信学技報，SANE2000-180, SAT2000-129, 33-38, Feb. 2000
Japanese

遅延相関器を用いたチャ―プ信号パルス圧縮地中レーダ
富澤良行; 荒井郁男
電子情報通信学会論文誌，B, J83-B, 1, 113-120, Jan. 2000
Japanese

生存者探索用レーダについて（特別招待論文）
荒井郁男
電子情報通信学会信学技報，SANE99-100, 31-35, Jan. 2000
Japanese

Archaeological survey using pulse compression subsurface radar
Y. Tomizawa; I. Arai; M. Hirose; T. Suzuki; T. Ohhashi
Archaeological Prospection, 7, 4, 241-247, 2000, A pulse compression subsurface radar using a chirp signal has been developed and evaluated by experimental survey at an archaeological site. This subsurface radar shows the superior ability to detect buried objects by weaker transmitting power than that of a conventional subsurface radar. Although several types of subsurface radars are now used to probe buried objects, it is sometimes difficult to use them for archaeological surveys. This is because echoes from targets such as tombs, ruins, and old mounds are sometimes very weak owing to their smallness and electromagnetic properties, which are very similar to the surrounding soils. In contrast, a pulse compression radar using a chirp signal has the ability to detect a very weak signal masked by noise, with very high resolution. We have applied this technique to a subsurface radar for archaeological survey and assembled an experimental system of a chirp subsurface radar using a delay correlator for pulse compression. This system has been successfully tested at an archaeological site called ‘The remains of Tajiri’ (Komochi, Gunma prefecture, Japan): a mounded tomb buried in the pumice layer has been clearly detected by this system. Copyright. © 2000 John Wiley &
Sons, Ltd.
Scientific journal, English

地中レーダ用遅延帰還増幅器におけるSTCの効果について
毛馬内洋典; 富澤良行; 三輪空司; 荒井郁男
電子情報通信学会信学技報，SANE99-91, 1-5, Dec. 1999
Japanese

電波式生存者探査機の開発
荒井郁男; 森茂雄; 後藤眞二
1999年産学公交流研究発表会資料, Oct. 1999
Japanese

可変カットオフ周波数LPFを用いた地中レーダ
富澤良行; 毛馬内洋典; 荒井郁男; 中内啓雅
1999年日本文化財探査学会第2回大会, 34-35, Sep. 1999
Japanese

地中レーダにおける遅延帰還増幅器のS/N改善効果
毛馬内洋典; 富澤良行; 三輪空司; 荒井郁男
電子情報通信学会信学技報，SANE99-76, 1-5, Sep. 1999
Japanese

On applicability of the integral equation formulation of the measured equation of invariance to 2D scattering objects
M Hirose; M Miyake; J Takada; Arai, I
IEICE TRANSACTIONS ON COMMUNICATIONS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E82B, 4, 645-654, Apr. 1999, This paper shows the applicability of the integral equation formulation of the measured equation of invariance (IE-MEI) to two-dimensional dielectric scatterers. That is, a relationship between the scattered electric and magnetic fields, which is derived from the new formulation of the IE-MEI: is applicable to lossless dielectric materials as well as perfect electric conductors (PEC). In addition, we show that the IE-MEI does not suffer from internal resonance problems. These two facts are validated by numerical examples for a circular cylinder and a square cylinder illuminated by Transverse Magnetic (TM) plane wave or a TM line source very close to the scatterers. The numerical results calculated by the IE-MEI agree well with the ones by moment methods that employ combined field formulations with exact boundary conditions.
Scientific journal, English

FM-CWマイクロ波センサを用いた路面プロフィルメータ
黒河内靖子; 本村和磨; 荒井郁男
1999年電子情報通信学会総合大会, c-2-III, Mar. 1999
Japanese

地中レーダ用抵抗装荷ワイヤアンテナの特性解析
廣瀬雅信; 富澤良行; 荒井郁男; 小見山耕司
1999年電子情報通信学会総合大会, B-1-1, Mar. 1999
Japanese

自動車レーダにおける車輌位置計測の一方法
畠山和久; 荒井郁男
1999年電子情報通信学会総合大会, A-17-23, Mar. 1999
Japanese

電波を利用した掘削ドリル先端位置測定の一方法
米原一智; 荒井郁男
1999年電子情報通信学会総合大会, B-2-39, Mar. 1999
Japanese

地中レーダにおけるS/N改善の一方法
石井啓貴; 富澤良行; 荒井郁男
1999年電子情報通信学会総合大会, B-2-40, Mar. 1999
Japanese

相関型地中レーダにおける遅延帰還アンプの効果について
程 元; 荒井郁男
1999年電子情報通信学会総合大会, B-2-41, Mar. 1999
Japanese

New integral equation formulation of the measured equation of invariance and the extension to analyze two-dimensional cylinders with impedance boundary conditions
M Hirose; M Miyake; JI Takada
RADIO SCIENCE, AMER GEOPHYSICAL UNION, 34, 1, 65-82, Jan. 1999, We have derived a new form of the integral equation formulation of the measured equation of invariance (IE-MEI). The new formulation clarifies the existence of a relationship between scattered electric and magnetic fields at consecutive nodes in the IE-MEI and indicates that the relationship in a problem for a perfect electric conductor (PEC) holds for a problem with arbitrary materials. In a scattering problem of a two-dimensional cylinder with an impedance boundary condition (IBC), every matrix in the IE-MEI is a band-like sparse matrix. That is, the solution process in the IE-MEI with an IBC is the same as that for a PEG. Therefore the IE-MEI with an IBC has the same merits of the IE-MEI for a PEG: The more efficient computation can be achieved with the smaller memory than those of the method of moments (MOM). The IE-MEI with an IBC is validated by numerical examples for a circular cylinder and a square cylinder by comparison with a combined field MOM that satisfies exact boundary conditions. Numerical examples show that the IE-MEI with an IBC is applicable to the case where the generalized skin depth is less than half the width of a scatterer.
Scientific journal, English

相関型地中レーダのS/N改善比の導出
富澤良行; 荒井郁男
電子情報通信学会論文誌, J82-B, 1, 180-183, Jan. 1999
Japanese

小口径ボーリング装置における先端近傍探査システム
中内啓雅; 荒井郁男; 早川秀樹
物理探査, 52, 6, 552-561, 1999
Japanese

タイムサイドローブ零の符号化信号を用いた地中レーダ
富澤良行; 荒井郁男
日本リモートセンシング学会，第25回学術講演会論文集, A33, Nov. 1998
Japanese

パルス化FM信号を用いた地中レーダ
梶尾浩史; 富澤良行; 荒井郁男; 早川秀樹
日本リモートセンシング学会，第25回学術講演会論文集, A34, Nov. 1998
Japanese

地中レーダにおける電波伝搬特性の実験
柳澤孝幸; 廣瀬雅信; 荒井郁男; 小見山耕治
1998年電子情報通信学会通信ソサエティ大会, B-1-9, Sep. 1998
Japanese

IE-MEI法の適用性に関する一検討
廣瀬雅信; 三宅正泰; 高田潤一; 荒井郁男
1998年電子情報通信学会通信ソサエティ大会, B-1-87, Sep. 1998
Japanese

在宅ケア支援FM-CWマイクロ波心拍・呼吸モニタの開発
本村和磨; 荒井郁男
第37回日本エム・イー学会大会, 2j2-4, May 1998
Japanese

Resolution Enhancement of Microwave Active Sensors by Inversion Method
Wu Xue-feng; ARAI I.; SUZUKI T.
Journal of the Remote Sensing Society of Japan, The Remote Sensing Society of Japan, 14, 1, 66-76, 1994, A method of resolution enhancement for microwave active sensor such as marine radar is proposed in this paper. The resolution of an active sensor is determined by it's signal bandwidth and antenna beam width. Therefore, resolution enhancament generally requires to change the hardware of transmitter and receiver of the sensor or enlarge the antenna size. But this is usually limited in practical applications.
This paper introduces a resolution enhancement method based on inversion method which can enhance the resolution of active sensors by signal processing without changing their hardware or enlarging their antennas.
Deconvolution methods in frequency domain and spatial domain are described first. The effectiveness of these methods are shown by simulation. Then, some examples of resolution enhancement are applied to both marine radar and ground based pulse radar. The results of practical experiments show that these methods are effective and useful for upgrading radars by simply processing the received signals. The comparison between the two kinds of method in different domains shows that the processing in frequency domain is better than that in spatial domain when real time processing is required. A method about how to determine the optimum value of parameter α in revised Wiener filter is also proposed in this paper.
Scientific journal, English

Resolution Enhancement of Pulse Radar by Inversion Method
Trans. of the Institute of Electronics and Communications Engineers of Japan, E76-B, 10, 1279-1284, 1993
Scientific journal, English

A Microwave Doppler Radar System for Noncontact Measurement of Head and Finger Movements in Clinical Use
Trans. of the Institute of Electronics and Communications Engineers of Japan, E76-B, 10, 1318-1324, 1993
Scientific journal, English

EXPERIMENTAL RESULTS ON SUBSURFACE RADAR WITH IMPROVED RESOLUTION
ARAI, I; T SUZUKI
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS, VSP BV, 7, 11, 1479-1495, 1993, This paper describes the experimental results on the subsurface radars developed by authors. Several new techniques including noise and clutter rejection techniques axe introduced in order to develop a subsurface radar which has high target resolution, extended range and clear image. Experimental results are presented to demonstrate improved capabilities.
Scientific journal, English

Error Correction Method for the MOS-1 MSR Data
Arai I.; Morita K.; Motomura K.; Suzuki T.
Journal of The Remote Sensing Society of Japan, The Remote Sensing Society of Japan, 11, 2, 2-269, 1991, The accuracy of the sea surface temperature measured by the MOS-1 MSR has been degraded by both the rotated polarization due to antenna scanning and antenna sidelobes. This paper describes data correction methods for them. First, a simple function has been introduced to correct the polarization error due to antenna scanning. Second, an inverse filtering has been used to suppress the error due to antenna sidelobes in both simulation and real data obtained by the MOS-1 MSR.
The MOS-1 MSR is a microwave sensor that rotates the main dish antenna with mechanically conical scanning. At the same time the observing polarization is also rotated by the mechanical scanning. Because sea surface brightness temperature depends on polarization, the rotation of the polarization causes measurement errors. The amount of the errors are estimated about 3 K at 23 GHz and 4 K at 31 GHz, respectively.
The sea surface brightness temperature varies as nearly cosine or sine curves according to the rotated polarization. Then we made simple equations for error correction. Using the equations, the error correction for both 23 GHz and 31 GHz has been done and the errors after correction became within ±0.1 K.
In order to evaluate the influence of antenna sidelobes on observed brightness temperature, we have calculated the brightness temperature on a simulation image. The results are as follows.
If the main beam of the antenna is directed to sea and the antenna sidelobes look at ground, the sea surface brightness temperature are observed higher than true data because of the influence of the higher temperature of the ground. On the other hand if the main beam and the sidelobes are directed to land and sea area respectively, the land brightness temperature is observed lower than true data. The amount of the errors due to the antenna sidelobes are about 10 K higher at sea and 20 K lower at land.
An inverse filtering method for the error correction has been applied to both simulation images and real data of the MOS-1 MSR. By this method we can correct more than 5 K and 10 K of the brightness temperature at sea surface and land, respectively.
Finally, we discussed the effect of pixel fractionization for smoothing.
Scientific journal, English

Advance on Underground Radars
IEICE Transactions, E74, 2, 1991
Scientific journal, English

Microwave Remote Sensing -On the Effect of Signal Processing by Inverse Filter-
Navigation, 107, 1991
Scientific journal, English

Noncontact and Noninvasive Microwave Biological Measurement
Journal of Cardiology, 20, 1, 1990
Scientific journal, English

Improvement of the Spatial Accuracy of the MOS-1 Microwave Scanning Radiometer by Signal Processing
Proceedings of 1989 ISNCR, 341-346, Nov. 1989
Scientific journal, English

Synthetic Aperture for Subsurface Radar
Proceedings of ISAP '85, 665-658, Aug. 1985
Scientific journal, English

Subsurface Radar -Signal Processing for Noise Reduction and High Resolution-
Proceedings of 1984 ISNCR, 679-684, Sep. 1984
English

A Microwave Interferometer System for the Displacement Measurements of Biological Subject
Trans. of the Institute of Electronics and Communications Engineers of Japan, J67-C, 6, 1984
Scientific journal, English

An Underground Radar System
Trans. of the Institute of Electronics and Communications Engineers of Japan, J66-B, 6, 1983
Scientific journal, English

Applied Electromagnetic Engineering
English, 近代科学社, 1992

Short Distance Subsurface Radar Using Barker Coded Signal
永尾典子; 毛馬内洋典; 富澤良行; 荒井郁男
Others, Japanese, 電子情報通信学会,信学技報SANE2001-112
Dec. 2001

電子情報通信学会

日本リモートセンシング学会

日本ME学会