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    Coherent laser radar
    1.
    发明申请
    Coherent laser radar 有权
    相干激光雷达

    公开(公告)号：US20060071846A1

    公开(公告)日：2006-04-06

    申请号：US10520128

    申请日：2003-05-30

    申请人： Yakayuki Yanagisawa ,  Syuhei Yamamoto ,  Yoshihito Hirano ,  Shumpei Kameyama ,  Toshiyuki Ando

    发明人： Yakayuki Yanagisawa ,  Syuhei Yamamoto ,  Yoshihito Hirano ,  Shumpei Kameyama ,  Toshiyuki Ando

    IPC分类号： G01S13/00

    CPC分类号： G01S7/481 ,  G01S7/48 ,  G01S7/4811 ,  G01S7/4813 ,  G01S7/4818 ,  G01S7/484 ,  G01S7/499 ,  G01S17/06 ,  G01S17/95 ,  G02F1/39 ,  Y02A90/19

    摘要： To obtain a coherent laser radar device that realizes high reliability and the high output of a transmitted light, the device includes a first optical coupler that branches a laser beam from a laser source into two lights, a local light and a transmitted light, an optical modulator that modulates the transmitted light, a space type optical amplifier that amplifies the modulated transmitted light, a transmitting/receiving optical system that applies the amplified transmitted light toward a target and receives a scattered light from the target, a transmitting/receiving light splitting device that splits the transmitted light and the received light, a second optical coupler that mixes the local light and the split received light together, a photodetector that detects heterodyne of a mixed light, a beat signal amplifier that amplifies a detected signal, a signal processing device that processes an amplified signal, and a display device that displays a processed result. The first and second optical couplers and an optical modulator are structured by polarization maintained type optical elements, and an optical path that extends from the laser source to the space type optical amplifier through the first optical coupler, an optical path that extends from the transmitting/receiving light splitting device to the photodetector through the second optical coupler, and an optical path that extends from the first optical coupler to the second optical coupler are connected by polarization maintained type single mode optical fibers.

    摘要翻译： 为了获得实现高可靠性和透射光的高输出的相干激光雷达装置，该装置包括第一光耦合器，其将来自激光源的激光束分成两个光，局部光和透射光，光学 调制透射光的调制器，放大经调制的透射光的空间型光放大器，将放大的透射光施加到目标并接收来自目标的散射光的发射/接收光学系统，发射/接收分光装置 将透射光和接收光分开的第二光耦合器，将局部光和分离的接收光混合在一起的第二光耦合器，检测混合光的外差的光电检测器，放大检测信号的拍频信号放大器，信号处理装置 处理放大信号，以及显示处理结果的显示装置。 第一和第二光耦合器和光调制器由偏振维持型光学元件构成，以及通过第一光耦合器从激光源延伸到空间型光放大器的光路，从发射/ 通过所述第二光耦合器将光分离装置接收到所述光电检测器，并且从所述第一光耦合器延伸到所述第二光耦合器的光路通过偏振维持型单模光纤连接。

    Coherent laser radar
    2.
    发明授权
    Coherent laser radar 有权
    相干激光雷达

    公开(公告)号：US07295290B2

    公开(公告)日：2007-11-13

    申请号：US10520128

    申请日：2003-05-30

    申请人： Takayuki Yanagisawa ,  Syuhei Yamamoto ,  Yoshihito Hirano ,  Shumpei Kameyama ,  Toshiyuki Ando

    发明人： Takayuki Yanagisawa ,  Syuhei Yamamoto ,  Yoshihito Hirano ,  Shumpei Kameyama ,  Toshiyuki Ando

    IPC分类号： G01C3/08

    CPC分类号： G01S7/481 ,  G01S7/48 ,  G01S7/4811 ,  G01S7/4813 ,  G01S7/4818 ,  G01S7/484 ,  G01S7/499 ,  G01S17/06 ,  G01S17/95 ,  G02F1/39 ,  Y02A90/19

    摘要： To obtain a coherent laser radar device that realizes high reliability and the high output of a transmitted light, the device includes a first optical coupler that branches a laser beam from a laser source into two lights, a local light and a transmitted light, an optical modulator that modulates the transmitted light, a space type optical amplifier that amplifies the modulated transmitted light, a transmitting/receiving optical system that applies the amplified transmitted light toward a target and receives a scattered light from the target, a transmitting/receiving light splitting device that splits the transmitted light and the received light, a second optical coupler that mixes the local light and the split received light together, a photodetector that detects heterodyne of a mixed light, a beat signal amplifier that amplifies a detected signal, a signal processing device that processes an amplified signal, and a display device that displays a processed result. The first and second optical couplers and an optical modulator are structured by polarization maintained type optical elements, and an optical path that extends from the laser source to the space type optical amplifier through the first optical coupler, an optical path that extends from the transmitting/receiving light splitting device to the photodetector through the second optical coupler, and an optical path that extends from the first optical coupler to the second optical coupler are connected by polarization maintained type single mode optical fibers.

    摘要翻译： 为了获得实现高可靠性和透射光的高输出的相干激光雷达装置，该装置包括第一光耦合器，其将来自激光源的激光束分成两个光，局部光和透射光，光学 调制透射光的调制器，放大经调制的透射光的空间型光放大器，将放大的透射光施加到目标并接收来自目标的散射光的发射/接收光学系统，发射/接收分光装置 将透射光和接收光分开的第二光耦合器，将局部光和分离的接收光混合在一起的第二光耦合器，检测混合光的外差的光电检测器，放大检测信号的拍频信号放大器，信号处理装置 处理放大信号，以及显示处理结果的显示装置。 第一和第二光耦合器和光调制器由偏振维持型光学元件构成，以及通过第一光耦合器从激光源延伸到空间型光放大器的光路，从发射/ 通过所述第二光耦合器将光分离装置接收到所述光电检测器，并且从所述第一光耦合器延伸到所述第二光耦合器的光路通过偏振维持型单模光纤连接。

    Airspeed / wind speed measurement device for aircraft, and display device for same
    3.
    发明申请
    Airspeed / wind speed measurement device for aircraft, and display device for same 失效
    飞机空速/风速测量装置及其显示装置

    公开(公告)号：US20070236367A1

    公开(公告)日：2007-10-11

    申请号：US11392515

    申请日：2006-03-30

    申请人： Naoki Matayoshi ,  Kimio Asaka ,  Yoshinori Okuno ,  Masahiro Hagio ,  Yoshihito Hirano ,  Shumpei Kameyama ,  Toshiyuki Ando ,  Hidetaka Kiyosue ,  Masashi Furuta ,  Tomoya Matsuda

    发明人： Naoki Matayoshi ,  Kimio Asaka ,  Yoshinori Okuno ,  Masahiro Hagio ,  Yoshihito Hirano ,  Shumpei Kameyama ,  Toshiyuki Ando ,  Hidetaka Kiyosue ,  Masashi Furuta ,  Tomoya Matsuda

    IPC分类号： G01C23/00

    CPC分类号： G01P13/025 ,  G01P5/26 ,  G01S17/58 ,  G01S17/95 ,  Y02A90/19

    摘要： In the measurement system for an aircraft according to the present invention, the three-axis components of the airspeed of the aircraft, the three-axis components of the wind speed currently encountered by the aircraft, and the wind speed distribution ahead of the aircraft, are measured simultaneously, by providing a Doppler anemometer which measures the airflow speeds at a plurality of points separated by a prescribed distance in the beam irradiation direction, and an inertial data measurement device which measures the movement information and positional information of the aircraft. Furthermore, in the measurement system for an aircraft according to the present invention, the measurement accuracy of the device is improved by providing means for obtaining information the movement and positional information of the aircraft during measurement, from the inertial data measurement device, and for correcting the measurement values from the Doppler anemometer by means of the information.

    摘要翻译： 在根据本发明的飞行器的测量系统中，飞行器空速的三轴分量，飞机当前遇到的风速的三轴分量以及飞机前方的风速分布， 通过提供测量在光束照射方向上分开了规定距离的多个点处的气流速度的多普勒风速计和测量飞行器的移动信息和位置信息的惯性数据测量装置同时测量。 此外，在本发明的飞机的测量系统中，通过提供用于从惯性数据测量装置获取信息，测量中的飞行器的移动和位置信息以及用于校正的装置，来提高装置的测量精度 来自多普勒风速计的测量值通过信息。

    LIDAR
    7.
    发明申请
    LIDAR 有权
    激光雷达

    公开(公告)号：US20140233013A1

    公开(公告)日：2014-08-21

    申请号：US14347938

    申请日：2012-12-07

    申请人： Takeshi Sakimura ,  Takayuki Yanagisawa ,  Shumpei Kameyama ,  Toshiyuki Ando ,  Yoshihito Hirano

    发明人： Takeshi Sakimura ,  Takayuki Yanagisawa ,  Shumpei Kameyama ,  Toshiyuki Ando ,  Yoshihito Hirano

    IPC分类号： G01S17/10

    CPC分类号： G01S17/102 ,  G01S7/4815 ,  G01S7/4818 ,  G01S7/484 ,  G01S17/107 ,  G01S17/58 ,  G01S17/95 ,  Y02A90/19

    摘要： A lidar includes CW laser light sources that oscillate CW laser light rays with wavelengths different from each other; an optical multiplexing coupler that mixes the CW laser light rays oscillated by the CW laser light sources; an optical branching coupler that splits the CW laser light passing through the mixing by the optical multiplexing coupler; a light modulator that modulates first CW laser light split by the optical branching coupler; and an optical fiber amplifier that amplifies the laser light modulated by the light modulator, in which a transmit-receive optical system irradiates a target with the laser light amplified by the optical fiber amplifier, and receives scattered light of the laser light by the target.

    摘要翻译： 激光雷达包括CW激光光源，其振荡具有彼此不同波长的CW激光光线; 光复用耦合器，其混合由CW激光光源振荡的CW激光; 光分路耦合器，其通过光复用耦合器分离通过混合的CW激光; 调制由光分路耦合器分离的第一CW激光的光调制器; 以及放大由光调制器调制的激光的光纤放大器，其中发射接收光学系统用由光纤放大器放大的激光照射目标，并且由目标接收激光的散射光。

    Laser radar apparatus
    8.
    发明授权
    Laser radar apparatus 有权
    激光雷达设备

    公开(公告)号：US07209222B2

    公开(公告)日：2007-04-24

    申请号：US10503212

    申请日：2002-12-27

    申请人： Shumpei Kameyama ,  Yoshihito Hirano ,  Kimio Asaka ,  Toshiyuki Ando ,  Atsushi Okamura ,  Toshio Wakayama ,  Hiroshi Sakamaki

    发明人： Shumpei Kameyama ,  Yoshihito Hirano ,  Kimio Asaka ,  Toshiyuki Ando ,  Atsushi Okamura ,  Toshio Wakayama ,  Hiroshi Sakamaki

    IPC分类号： G01P3/36

    CPC分类号： G01S17/58 ,  G01S7/4818 ,  G01S13/325 ,  G01S17/32

    摘要： A laser radar apparatus includes a mixer 12 for converting the frequency of an electric signal outputted from a photodetector 11 into a baseband frequency by using a modulating signal generated by an oscillator 2. The laser radar apparatus carries out a coherent integral of the electric signal whose frequency has been converted by the mixer 12, and measures the quality of scatterers which exist in the atmosphere from a result of the integral. As a result, even when the S/N ratio of the light signal received by a receiving optical unit 8 is low, the laser radar apparatus can detect the quality of the scatterers.

    摘要翻译： 激光雷达装置包括：混频器12，用于通过使用由振荡器2产生的调制信号将从光电检测器11输出的电信号的频率转换为基带频率。 激光雷达装置对混频器12进行频率转换的电信号进行相干积分，并根据积分的结果测量大气中散射体的质量。 结果，即使当由接收光学单元8接收的光信号的S / N比低时，激光雷达装置也可以检测散射体的质量。

    Laser detection and ranging apparatus
    10.
    发明申请
    Laser detection and ranging apparatus 有权
    激光检测和测距仪

    公开(公告)号：US20050162637A1

    公开(公告)日：2005-07-28

    申请号：US10510983

    申请日：2003-02-19

    申请人： Shumpei Kameyama ,  Yoshihito Hirano

    发明人： Shumpei Kameyama ,  Yoshihito Hirano

    IPC分类号： G01S17/58 ,  G01S17/95 ,  G01C3/08

    CPC分类号： G01S17/95 ,  G01S17/58 ,  G01S17/936 ,  Y02A90/19

    摘要： In a laser detecting and ranging apparatus in which a light signal is intensity-modulated with a modulating frequency consisting of a frequency in the microwave band for thereby detecting a Doppler frequency relating to the modulating frequency, high reception sensitivity is realized. The apparatus comprises a light transmitting unit for transmitting a light signal from a light source 1 as a transmitted beam L1 into the atmosphere, a light receiving means for receiving a light beam L2 from the atmosphere as a received light, an oscillator 10 for outputting a modulating signal having at least one modulating frequency as a carrier frequency, and a signal processing unit 12 for detecting properties of the atmosphere on the basis of the received light, wherein the light transmitting unit includes a light intensity modulator 2 for performing intensity modulation on the light signal from the light source 1 with the modulating signal, and wherein the signal receiving means includes an optical frequency conversion means 9 for converting the frequency of the intensity-modulated component of the received light to a base-band frequency, and an optical detection means 11 for directly detecting an output signal from the optical frequency conversion means 9 to thereby convert into an electric signal to be subsequently inputted to the signal processing unit 12.

    摘要翻译： 在激光检测和测距装置中，光信号用由微波频带中的频率组成的调制频率进行强度调制，从而检测与调制频率相关的多普勒频率，实现了高接收灵敏度。 该装置包括用于将来自作为透射光束L 1的光源1的光信号传输到大气中的光发送单元，用于接收来自大气中的光束L 2作为接收光的光接收装置，用于 输出具有至少一个调制频率作为载波频率的调制信号，以及信号处理单元12，用于根据接收到的光检测气氛的属性，其中光发射单元包括用于进行强度调制的光强度调制器2 对来自光源1的光信号具有调制信号，并且其中信号接收装置包括用于将接收光的强度调制分量的频率转换为基带频率的光频变换装置9，以及 光检测装置11，用于直接检测来自光频变换装置9的输出信号，从而转换i n到随后输入到信号处理单元12的电信号。