公开(公告)号：US06505508B1

公开(公告)日：2003-01-14

申请号：US09831739

申请日：2001-05-14

申请人： Shumpei Kameyama ,  Yoshihito Hirano ,  Shusou Wadaka ,  Hidetoshi Tanaka ,  Wakasa Kise

发明人： Shumpei Kameyama ,  Yoshihito Hirano ,  Shusou Wadaka ,  Hidetoshi Tanaka ,  Wakasa Kise

IPC分类号： G01M900

CPC分类号： G01S13/95 ,  G01S13/953 ,  G01S15/885 ,  G01S17/95 ,  G01W2001/003 ,  Y02A90/18 ,  Y02A90/19

摘要： A turbulent layer detecting apparatus in accordance with the present invention is equipped with a transmitting section that transmits beams of electromagnetic waves, sound waves or light waves into the atmosphere, a receiving section that receives the electromagnetic waves, the sound waves, or the light waves that have been transmitted by the transmitting section and scattered by particulates or the like in the atmosphere, a wind velocity measuring section that measures a beam direction component of a wind velocity at two or more observation points on a beam from a received signal received by the receiving section, or a density measuring section that measures a density at two or more observation points on the beam, and a turbulent layer detecting section that detects the presence of a turbulent layer on the basis of the output of either the wind velocity measuring section or the density measuring section.

摘要翻译： 根据本发明的湍流层检测装置配备有将电磁波，声波或光波发射到大气中的发送部，接收电磁波，声波或光波的接收部 已经由发射部分传播并被大气中的微粒等传播的风速测量部分，用于测量来自接收到的信号的波束上的两个或更多个观察点处的风速的波束方向分量 接收部分或测量光束上两个或更多个观察点处的密度的浓度测量部分，以及湍流层检测部分，其基于风速测量部分或风速测量部分的输出来检测湍流层的存在， 密度测量部分。

公开(公告)号：US06469778B2

公开(公告)日：2002-10-22

申请号：US09758421

申请日：2001-01-12

申请人： Kimio Asaka ,  Yoshihito Hirano ,  Takayuki Yanagisawa ,  Shusou Wadaka ,  Yasuisa Ooga ,  Etsuo Sugimoto

发明人： Kimio Asaka ,  Yoshihito Hirano ,  Takayuki Yanagisawa ,  Shusou Wadaka ,  Yasuisa Ooga ,  Etsuo Sugimoto

IPC分类号： G01P336

CPC分类号： G01S7/4818 ,  G01S7/486 ,  G01S17/10

摘要： A coherent laser radar system includes a pulsed laser oscillating a pulsed laser beam which is split into two parts by an optical divider. A first part of the two is transmitted as a transmitted beam via a beam splitter. A second part is supplied to a delay line via a coupling optics and others to be delayed by a predetermined time as a local beam, and is incident onto an optical coupler. The received beam from the target is incident onto the optical coupler via a scanning optics and so on. A photodetector carries out the coherent detection of the light beam coupled by the optical coupler. A signal processor computes a target velocity and the like from a signal generated by the detection and converted into a digital signal by an A/D converter. This makes it possible to solve a problem of a conventional system in that the system configuration is complicated and expensive.

摘要翻译： 相干激光雷达系统包括脉冲激光振荡脉冲激光束，该激光束通过光学分配器分成两部分。 两者的第一部分通过分束器作为透射光束传输。 第二部分经由耦合光学器件提供给延迟线，而其它部分被延迟预定时间作为局部光束，并入射到光耦合器上。 来自目标的接收光束通过扫描光学器件等入射到光耦合器上。 光电检测器执行由光耦合器耦合的光束的相干检测。 信号处理器从由检测产生的信号中计算出目标速度等并由A / D转换器转换成数字信号。 这使得可以解决常规系统的问题，因为系统配置是复杂和昂贵的。

公开(公告)号：US06580497B1

公开(公告)日：2003-06-17

申请号：US09579462

申请日：2000-05-26

申请人： Kimio Asaka ,  Yoshihito Hirano ,  Shusou Wadaka

发明人： Kimio Asaka ,  Yoshihito Hirano ,  Shusou Wadaka

IPC分类号： G01S1710

CPC分类号： G01S17/32 ,  G01S7/481 ,  G01S7/4917 ,  G01S7/493 ,  G01S17/50 ,  G01S17/95 ,  Y02A90/19

摘要： In a coherent CW laser radar apparatus, a soft target such as rain, fog, and air turbulence can be detected by using a CW laser. The coherent CW laser radar apparatus is arbandd by comprising: as an optical component, a CW laser oscillating a laser radiation having a single wavelength; a dividing means for dividing laser radiation derived from the CW laser; an optical modulator for modulating one of the laser radiation divided by the dividing means; an optical antenna for projecting the modulated laser radiation as transmitted radiation toward a target, and also for receiving scattered radiation from the target as received radiation; combining means for combining the other of the laser radiation divided by the dividing means as local radiation with the received radiation received from the optical antenna; and a photodetector for optical-heterodyne-detecting the combined radiation. Also, this coherent CW laser radar apparatus is further arbandd by employing: as an electric component, a pseudo-random modulation signal generator for supplying a pseudo-random modulation signal to the optical modulator; a variable delay device for time-delaying a portion of the pseudo-random modulation signal generated from the pseudo-random modulation signal generator; a correlating device for multiplying the output signal of the photodetector by the pseudo-random modulation signal time-delayed by the variable delay device; and signal processing means for acquiring physical information such as a distance of the target and a velocity of the target based upon a intensity and a frequency of the output signal from the correlating device, and also the delay time set by the variable delay device. In this radar apparatus, an optical path between the optical components is constituted by an optical fiber.

摘要翻译： 在相干CW激光雷达装置中，可以通过使用CW激光器来检测诸如雨，雾和空气湍流的软目标。 相干CW激光雷达装置包括：作为光学部件，CW激光器振荡具有单个波长的激光辐射; 用于分割源自CW激光器的激光辐射的分割装置; 光调制器，用于调制由分割装置分割的激光辐射之一; 用于将经调制的激光辐射作为传输辐射朝向目标投影的光学天线，并且还用于接收来自目标的散射辐射作为接收辐射; 组合装置，用于将由分割装置分割的另一个激光辐射作为局部辐射与从光学天线接收的接收辐射组合; 以及用于光学外差检测组合辐射的光电检测器。 另外，该相干CW激光雷达装置还通过采用：作为电气部件的伪随机调制信号发生器，用于向光调制器提供伪随机调制信号; 一种可变延迟装置，用于对由伪随机调制信号发生器产生的伪随机调制信号的一部分进行时间延迟; 相关装置，用于将光电检测器的输出信号乘以由可变延迟装置延时的伪随机调制信号; 以及信号处理装置，用于基于来自相关装置的输出信号的强度和频率以及由可变延迟装置设置的延迟时间，获取诸如目标的距离和目标的速度的物理信息。 在该雷达装置中，光学部件之间的光路由光纤构成。

公开(公告)号：US06335701B1

公开(公告)日：2002-01-01

申请号：US09649842

申请日：2000-08-28

申请人： Takahiko Fujisaka ,  Kimio Asaka ,  Yoshihito Hirano ,  Shusou Wadaka

发明人： Takahiko Fujisaka ,  Kimio Asaka ,  Yoshihito Hirano ,  Shusou Wadaka

IPC分类号： G01S1353

CPC分类号： G01S7/288 ,  G01S13/532

摘要： Disclosed is a radar system capable of obviating a problem that a sufficient improvement of an S/N ratio could not be obtained in the prior art, and comprising a transmitter/receiver for detecting a phase of a receiving signal reflected from an observation target, an A/D converter for converting the receiving signal into a digital signal, a range gate for extracting the receiving signal having a time corresponding to the predetermined pulse width, a data dividing unit for dividing the receiving signals in to two groups of data, an FFT unit for fast-Fourier-transforming one group of data of the two groups of data, an FFT unit for fast-Fourier-transforming the other group of data, a complex conjugating unit for taking a complex conjugate of an output of the FFT unit, a complex multiplying unit for performing a complex multiplication for the every same Doppler frequency component with respect to an output of the former FFT unit and an output of the complex conjugating unit, and a complex adder for executing a coherent addition of a result of the complex multiplication the same number of times as the repetitions with respect to the same Doppler frequency component. The receiving signals can be coherently integrated both in the pulse and between the pulses, and the S/N ratio can be improved.

摘要翻译： 公开了一种能够消除在现有技术中无法获得S / N比的充分改善的问题的雷达系统，并且包括用于检测从观测目标反射的接收信号的相位的发射机/接收机， 用于将接收信号转换为数字信号的A / D转换器，用于提取具有与预定脉冲宽度相对应的时间的接收信号的量程门，用于将接收信号分成两组数据的数据分割单元，FFT 用于对两组数据的一组数据进行快速傅立叶变换的单元，用于对另一组数据进行快速傅立叶变换的FFT单元，用于获取FFT单元的输出的复共轭的复共轭单元， 复数乘法单元，用于相对于前一FFT单元的输出和复共轭单元的输出执行针对每个相同的多普勒频率分量的复乘法，以及复共轭 加法器，用于执行复数乘法结果的相干相加相同于相同多普勒频率分量的重复次数。 接收信号可以在脉冲和脉冲之间相干地集成，并且可以提高S / N比。

公开(公告)号：US07098433B2

公开(公告)日：2006-08-29

申请号：US10415936

申请日：2002-01-17

申请人： Jiro Suzuki ,  Toshiyuki Ando ,  Hiroshi Suzuki ,  Shusou Wadaka ,  Yoshihito Hirano ,  Izumi Mikami ,  Tadashi Matsushita

发明人： Jiro Suzuki ,  Toshiyuki Ando ,  Hiroshi Suzuki ,  Shusou Wadaka ,  Yoshihito Hirano ,  Izumi Mikami ,  Tadashi Matsushita

IPC分类号： G01J1/20

CPC分类号： G01M11/31 ,  G01M11/00 ,  G01M11/005 ,  G02B7/003 ,  G02B23/16

摘要： An optical system deviation estimating apparatus includes an erected/inverted attitude setting means 9 for changing dispositional attitude of an optical system under test, a non-interferometric type wavefront measuring means 10 for measuring wavefronts at the attitudes as set up without resorting to interference phenomenon of light, a polynomial approximation means 15 for expanding measured wavefront values determined by the non-interferometric type wavefront measuring means 10 to a polynomial, an averaging arithmetic means 11 for averaging the measured values derived from output of the non-interferometric type wavefront measuring means 10 or alternatively arithmetic values derived from output of the polynomial approximation means 15, and a polynomial specific coefficient extraction arithmetic means 16 for extracting specific coefficient values of the polynomial.

摘要翻译： 一种光学系统偏差估计装置，包括用于改变被测光学系统的姿态的竖立/反转姿态设定装置9，用于在不采取干扰现象的情况下测量姿态下的波前测量的非干涉式波前测量装置10 光，用于将由非干涉型波前测量装置10确定的测量波前值扩展为多项式的多项式近似装置15，用于对从非干涉式波前测量装置10的输出得到的测量值进行平均的平均运算装置11 或从多项式近似装置15的输出导出的算术值，以及用于提取多项式的特定系数值的多项式特定系数提取运算装置16。

公开(公告)号：US20140168634A1

公开(公告)日：2014-06-19

申请号：US14236792

申请日：2011-11-15

申请人： Shumpei Kameyama ,  Masaharu Imaki ,  Nobuki Kotake ,  Hidenobu Tsuji ,  Hideaki Ochimizu ,  Mikio Takabayashi ,  Yoshihito Hirano

发明人： Shumpei Kameyama ,  Masaharu Imaki ,  Nobuki Kotake ,  Hidenobu Tsuji ,  Hideaki Ochimizu ,  Mikio Takabayashi ,  Yoshihito Hirano

IPC分类号： G01S17/02 ,  G01B11/24 ,  G01S17/89

CPC分类号： G01S17/02 ,  B64G1/62 ,  B64G1/64 ,  B64G1/646 ,  B64G1/66 ,  B64G2001/1071 ,  G01B11/24 ,  G01S7/48 ,  G01S7/481 ,  G01S17/10 ,  G01S17/88 ,  G01S17/89 ,  G01S17/933 ,  G01S17/936

摘要： A laser radar device includes: a pulse laser that outputs transmission light to a target; an transmission optical system that makes the transmission light at a predetermined beam spread angle; a light-receiving element array that receives scattered light from the target and converts the light to an electric signal; an electric circuit array that detects a reception intensity and a reception time from the electric signal; a range/three-dimensional shape output unit that measures a range to the target or a three-dimensional shape of the target on the basis of the reception time; a determination unit that determines whether the beam spread angle is changed or not on the basis of the reception intensity and the reception time; and a control unit that changes the beam spread angle on the basis of a determination result.

摘要翻译： 激光雷达装置包括：将传输光输出到目标的脉冲激光器; 使透射光成为规定的光束扩展角的透射光学系统; 光接收元件阵列，其接收来自所述目标物的散射光并将所述光转换成电信号; 从电信号检测接收强度和接收时间的电路阵列; 范围/三维形状输出单元，其基于接收时间测量目标的范围或目标的三维形状; 确定单元，其基于接收强度和接收时间来确定波束扩展角是否改变; 以及控制单元，其基于确定结果改变光束扩展角。

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。

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。

公开(公告)号：US20050146706A1

公开(公告)日：2005-07-07

申请号：US10503212

申请日：2002-12-27

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

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

IPC分类号： G01S7/481 ,  G01S13/32 ,  G01S17/32 ,  G01S17/58 ,  G01S13/00 ,  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：混合器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。激光雷达装置执行电信号的相干积分， 频率已经由混合器12转换，并且从积分的结果测量存在于大气中的散射体的质量。 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。

公开(公告)号：US09310487B2

公开(公告)日：2016-04-12

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： G01C3/08 ,  G01S17/10 ,  G01S17/95 ,  G01S17/58 ,  G01S7/481 ,  G01S7/484

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。