岡田 隆光 OKADA Takamitsu

ID:9000004739070

三菱電機株式会社情報技術総合研究所 Information Technology R&D Center, Mitsubishi Electric Corp. (2004年 CiNii収録論文より)

Search authors sharing the same name

Articles:  1-20 of 41

  • 1 / 3
  • A Study of Measure to Cope with the Multipath Effects Using Prediction Data from Tracking Filter  [in Japanese]

    OKADA Takamitsu , ITO Masayoshi

    In the case that GPS cannot utilize and there is requirement for more highly accuracy of location or more highly rate of observation, a method to locate moving targets from time difference of wave arr …

    Technical report of IEICE. SANE 104(97), 13-18, 2004-05-21

    References (4) Cited by (4)

  • B-2-39 A Study of Measure to Cope with the Multipath Effects using Prediction Data from Tracking Filter at Time Differential of Arrival Location  [in Japanese]

    OKADA Takamitsu , ITO Masayosi

    Proceedings of the IEICE General Conference 2004年_通信(1), 323, 2004-03-08

  • A Novel Target Measurement Algorithm for FMCW Radars  [in Japanese]

    MITSUMOTO Masashi , OKADA Takamitsu , FUJISAKA Takahiko , KOSUGE Yoshio

    FMCW(Frequency Modulated Continuous Wave)レーダにより測定対象の距離と速度(以下,目標諸元と呼ぶ)を得る場合,例えば,アップチャープとダウンチャープのような周波数変調率が異なる複数の送信信号を用いて,各送信信号ごとに受信信号のビート周波数を測定する必要がある.このため,複数の送信信号にわたって同一目標からの反射信号が受信されない場合には目標諸元の測定結果が得 …

    The Transactions of the Institute of Electronics,Information and Communication Engineers B 86(4), 714-720, 2003-04-01

    References (9)

  • Tracking Method of Small Extended Targets Using Hierarchical Agglomerative Clustering  [in Japanese]

    Okada Takamitsu , Okamura Atushi , Kosuge Yoshio

    Proceedings of the IEICE General Conference 2003年_通信(1), 283, 2003-03-03

  • Position Estimation of Three-Dimensional Radars with Bias Errors  [in Japanese]

    OKADA Takamitsu , OKAMURA Atsushi , KOSUGE Yoshio

    複数のレーダを統合した多目標追尾システムでは,各レーダのアライメントに起因するレーダ観測座標の誤差やレーダ位置の誤差などが追尾性能に大きな影響を与える.本論文では,前者の誤差が無視できるものとして,当該レーダで同時に観測した航空機の位置の差を線形近似して,複数の三次元レーダにおける相対位置のバイアス誤差をカルマンフィルタにより推定する方法を提案した.複数のレーダを遠距離に配置する場合,各レーダを基 …

    The Transactions of the Institute of Electronics,Information and Communication Engineers B 86(2), 245-254, 2003-02-01

    References (7) Cited by (2)

  • Stochastic performance evaluation of FMCW radar systems using the beat frequency tracking filter  [in Japanese]

    MITSUMOTO Masashi , OKADA Takamitsu , OKAMURA Atsushi , KOSUGE Yoshio

    In conventional Frequency Modulated Continuous Wave (FMCW) radar systems, we should simultaneously observe two beat frequencies in an up-chirp phase and a down-chirp phase to estimate the distance and …

    Technical report of IEICE. SANE 102(487), 19-23, 2002-11-22

    References (6)

  • Three Dimensional Vehicle Tracking Using Visual Image Sensor and Two Dimensional Radar  [in Japanese]

    OKADA Takamitsu , FUJISAKA Takahiko , KOSUGE Yoshio , MANO Seiji

    画像センサと2次元レーダの観測データを道路上の2次元位置に変換して車両を追尾する方式では,道路の傾きやセンサ指向方向のずれにより生ずる車両位置のバイアス誤差により追尾精度が劣化する.本論文では,画像センサと2次元レーダの観測モデルを3次元予測ベクトルのまわりで線形近似することにより,これらのセンサの観測ベクトルを道路上の2次元位置に変換せずに,センサの観測座標において平滑する車両追尾方式を提案した …

    The Transactions of the Institute of Electronics,Information and Communication Engineers B 85(5), 846-855, 2002-05-01

    References (13) Cited by (3)

  • A novel target measurement algorithm for FMCW radars  [in Japanese]

    MITSUMOTO Masashi , OKADA Takamitsu , FUJISAKA Takahiko , KOSUGE Yoshio

    In a Frequency Modulated Continuous Wave (FMCW) radar, we need two beat frequencies in an up-chirp mode and a down-chirp mode to measure the distance and the velocity of a target. Therefore, a target …

    Technical report of IEICE. SAT 101(655), 113-118, 2002-02-15

    References (4)

  • A novel target measurement algorithm for FMCW radars  [in Japanese]

    MITSUMOTO Masashi , OKADA Takamitsu , FUJISAKA Takahiko , KOSUGE Yoshio

    In a Frequency Modulated Continuous Wave (FMCW) radar, we need two beat frequencies in an up-chirp mode and a down-chirp mode to measure the distance and the velocity of a target. Therefore, a target …

    Technical report of IEICE. SANE 101(654), 113-118, 2002-02-15

    References (4)

  • Three Dimensional Vehicle Tracking Method Using Visual Image Sensor and Two Dimensional Radar  [in Japanese]

    OKADA Takamitsu , FUJISAKA Takahiko , KOSUGE Yoshio

    In the method which measures vehicles position on the road by image sensor and two dimensional radar assuming that road face is flat, tracking accuracy deteriorates by bias errors of vehicles position …

    IEICE technical report. Image engineering 101(627), 155-160, 2002-01-23

    References (11)

  • Three Dimensional Vehicle Tracking Method Using Visual Image Sensor and Two Dimensional Radar  [in Japanese]

    OKADA Takamitsu , FUJISAKA Takahiko , KOSUGE Yoshio

    In the method which measures vehicles position on the road by image sensor and two dimensional radar assuming that road face is flat, tracking accuracy deteriorates by bias errors of vehicles position …

    電子情報通信学会技術研究報告. ITS 101(625), 155-160, 2002-01-23

    References (11)

  • Three Dimensional Vehicle Tracking Method Using Visual Image Sensor and Two Dimensional Radar  [in Japanese]

    OKADA Takamitsu , FUJISAKA Takahiko , KOSUGE Yoshio

    In the method which measures vehicles position on the road by image sensor and two dimensional radar assuming that road face is flat, tracking accuracy deteriorates by bias errors of vehicles position …

    ITE Technical Report 26.9(0), 155-160, 2002

    J-STAGE  References (11)

  • Two Dimensional Vehicle Tracking Method Using Dopplar.  [in Japanese]

    OKADA Takamitsu , FUJISAKA Takahiko , KOSUGE Yoshio

    Proceedings of the IEICE General Conference 2001年.基礎・境界, 389, 2001-03-07

  • Three Dimensional Vehicle Tracking Method Using Visual Image Sensor and Two Dimensional Radar  [in Japanese]

    OKADA Takamitsu , FUJISAKA Takahiko , KOSUGE Yoshio

    This paper presents an accurate vehicle tracking method which combines the data from image sensor and two dimensional radar.About the method which estimate two dimensional position and velocity on the …

    IEICE technical report. Antennas and propagation 100(582), 145-152, 2001-01-25

    References (13)

  • Three Dimensional Vehicle Tracking Method Using Visual Image Sensor and Two Dimensional Radar  [in Japanese]

    OKADA Takamitsu , FUJISAKA Takahiko , KOSUGE Yoshio

    電気学会研究会資料. : The Papers of Technical Meeting on Electromagnetic Theory, IEE Japan. EMT, 電磁界理論研究会 2001(1), 145-152, 2001-01-25

    References (12)

  • Three Dimensional Vehicle Tracking Method Using Visual Image Sensor and Two Dimensional Radar  [in Japanese]

    OKADA Takamitsu , FUJISAKA Takahiko , KOSUGE Yoshio

    This paper presents an accurate vehicle tracking method which combines the data from image sensor and two dimensional radar. About the method which estimete two dimensional position and velocity on th …

    Technical report of IEICE. SANE 100(584), 145-152, 2001-01-18

    References (13)

  • A novel target measurement algorithm for FMCW radars  [in Japanese]

    MITSUMOTO Masashi , OKADA Takamitsu , FUJISAKA Takahiko , KOSUGE Yoshio

    Proceedings of the Society Conference of IEICE, 183, 2001

    Cited by (2)

  • Three Dimensional Vehicle Tracking Using Image Sensor and Two Dimensional Radar.  [in Japanese]

    OKADA Takamitsu , FUJISAKA Takahiko , KOSUGE Yoshio

    Proceedings of the Society Conference of IEICE 2000年基礎・境界ソサイエティ大会講演論文集, 272, 2000-09-07

  • Bias Estimation of Two 3-Dimensional Radars Installed on the Ships.  [in Japanese]

    OKADA Takamitsu , TSUJIMICHI Shingo , KOSUGE Yoshio

    Proceedings of the IEICE General Conference 2000年.通信(1), 244, 2000-03-07

  • Steady State Errors of an α-β-γ Filter for Radar Tracking  [in Japanese]

    KOSUGE Yoshio , ITO Masayoshi , OKADA Takamitsu , MANO Seiji

    レーダによる追尾フィルタは,目標位置を観測値として,位置,速度などの目標運動諸元の真値を推定するものである.ここで,α-βフィルタは等速直線運動モデル,α-β-γフィルタは等加速度運動モデルを使用した1次元空間用の追尾フィルタである.ところで,α-β-γフィルタでは,初期値算出から十分時間が経過した場合の等速直線運動目標に対する定常誤差の分散の算出式が報告されている.しかし,α-β-γフィルタの場 …

    The Transactions of the Institute of Electronics,Information and Communication Engineers. A 00082(00012), 1767-1779, 1999-12-25

    References (13) Cited by (9)

  • 1 / 3
Page Top