公开(公告)号：US11796655B2

公开(公告)日：2023-10-24

申请号：US16769447

申请日：2018-11-13

Applicant: JAPAN AEROSPACE EXPLORATION AGENCY

Inventor： Hamaki Inokuchi

IPC: G01S7/497 ,  G01S17/50 ,  G01S17/95 ,  G01S13/95 ,  G01S15/88

CPC classification number: G01S7/497 ,  G01S17/50 ,  G01S17/95 ,  G01S13/953 ,  G01S15/885

Abstract: [Object] To appropriately evaluate reliability of a reception signal.
[Solving Means] A signal processing unit 20 includes a first integration unit 21, a Doppler detection unit 22, and a comparator circuit 28 as a reliability index calculation unit. The first integration unit 21 intermittently integrates a pulse train corresponding to a reception signal by using two systems and obtains two pieces of integrated data. The Doppler detection unit 22 divides each of the two pieces of integrated data into a plurality of range bins in time series, obtains a relationship between a frequency and intensity in each range bin for each of the two pieces of integrated data, and detects a Doppler shift amount from the relationship. The comparator circuit 28 calculates a reliability index of the reception signal by comparing the Doppler shift amounts (wind velocity values) of the two pieces of integrated data.

公开(公告)号：US11827337B2

公开(公告)日：2023-11-28

申请号：US17043427

申请日：2019-03-29

Applicant: JAPAN AEROSPACE EXPLORATION AGENCY

Inventor： Hamaki Inokuchi

IPC: B64C13/16 ,  G05D1/10 ,  B64C9/00 ,  B64D45/00 ,  G01P5/26

CPC classification number: B64C13/16 ,  B64C9/00 ,  B64D45/00 ,  G01P5/26 ,  G05D1/106

Abstract: [Object] To provide a technique for reducing the fluctuation of an airplane when an airplane enters turbulence without using prior information of two-dimensional or more airflow vectors.
[Solving Means] A system includes: a measurement unit 10 that emits electromagnetic waves toward a planned flight direction of the airplane, receives scattered waves of the emitted electromagnetic waves in atmosphere, and measures a remote wind speed in a radiation axis direction of the emitted electromagnetic waves based on a Doppler shift amount of a frequency between the emitted electromagnetic waves and the scattered electromagnetic waves; a spoiler 221 that controls a lift of the airplane; and a control calculation unit 30 that calculates an angle of attack with less lift inclination and calculates an angle of the spoiler 221 that controls the lift so that the lift does not change when it is determined that the airplane will receive a gust, based on a measurement result of the measurement unit 10.

公开(公告)号：US09019481B2

公开(公告)日：2015-04-28

申请号：US13644573

申请日：2012-10-04

Applicant: Japan Aerospace Exploration Agency

Inventor： Takashi Asahara ,  Hamaki Inokuchi

IPC: G01P3/36 ,  G01S17/95 ,  G01S17/58 ,  G01S7/487

CPC classification number: G01S17/95 ,  G01S7/4876 ,  G01S17/58 ,  Y02A90/19

Abstract: An object of the present invention is to provide an optical remote airflow measurement apparatus with which even colored noise corresponding to an external environment of the apparatus can be reduced, thereby reducing measurement reliability deterioration and enabling long-distance measurement in a wide flying speed range. A colored noise reduction method according to the present invention includes: considering a signal strength of scattered light to be substantially non-existent in a remotest region and beyond; calculating a noise distribution by performing processing to average the signal strength in respective Doppler frequency components divided at intervals of a certain frequency in the remotest measurement region and beyond, and performing subtraction processing in each of the Doppler frequency components on all signal strength distributions of the measurement region, which are obtained by dividing the noise distribution at intervals of a certain distance.

Abstract translation: 本发明的目的是提供一种光学远程气流测量装置，可以减少与设备的外部环境相对应的彩色噪声，从而降低测量可靠性劣化，并能够在宽飞行速度范围内实现长距离测量。 根据本发明的彩色降噪方法包括：考虑到在最远的区域以外基本不存在散射光的信号强度; 通过对最远的测量区域以外的特定频率的间隔分割的各个多普勒频率成分的信号强度进行平均化处理来计算噪声分布，对所述多普勒频率成分的各信号强度分布进行减法处理 测量区域，其通过以一定距离的间隔分割噪声分布而获得。

公开(公告)号：US08956022B2

公开(公告)日：2015-02-17

申请号：US13633417

申请日：2012-10-02

Applicant: Japan Aerospace Exploration Agency

Inventor： Hamaki Inokuchi

IPC: B64D47/00 ,  B64D47/02 ,  G01S17/93 ,  G01S7/497

CPC classification number: B64D47/02 ,  G01S7/4972 ,  G01S17/933

Abstract: A laser light reflection device for an aircraft-installed laser apparatus with which, when a function check is performed on the aircraft-installed laser apparatus by emitting laser light from a parked aircraft to a body exterior, the emitted laser light can be reflected in a desired direction safely and efficiently. A reflection mirror is capable of autorotation about at least an in-plane horizontal axis thereof, and a support ring is attached to the reflection mirror to be capable of rotating about an in-plane vertical axis and the in-plane horizontal axis of the reflection mirror. A laser pointer unit formed by inserting a laser pointer into a sleeve pipe is attached to the support ring so as to be oriented toward an in-plane of the reflection mirror. A guide scope is attached to the support ring such that an optical axis thereof matches an optical axis of the laser pointer unit.

Abstract translation: 一种用于飞行器安装的激光装置的激光反射装置，当通过从停放的飞行器发射激光到身体外部对飞行器安装的激光装置进行功能检查时，发射的激光可以被反射在 期望方向安全有效。 反射镜能够围绕其至少一个平面内的水平轴自转，并且支撑环附接到反射镜以能够围绕平面内垂直轴线旋转并且反射的平面内水平轴线 镜子。 通过将激光指示器插入到套筒管中而形成的激光指示器单元被安装到支撑环上以朝向反射镜的平面内。 引导范围附接到支撑环，使得其光轴与激光指示器单元的光轴匹配。

公开(公告)号：US20130100688A1

公开(公告)日：2013-04-25

申请号：US13633417

申请日：2012-10-02

Applicant: JAPAN AEROSPACE EXPLORATION AGENCY

Inventor： Hamaki Inokuchi

IPC: B64D47/02

CPC classification number: B64D47/02 ,  G01S7/4972 ,  G01S17/933

Abstract: A laser light reflection device for an aircraft-installed laser apparatus with which, when a function check is performed on the aircraft-installed laser apparatus by emitting laser light from a parked aircraft to a body exterior, the emitted laser light can be reflected in a desired direction safely and efficiently. A reflection mirror is capable of autorotation about at least an in-plane horizontal axis thereof, and a support ring is attached to the reflection mirror to be capable of rotating about an in-plane vertical axis and the in-plane horizontal axis of the reflection mirror. A laser pointer unit formed by inserting a laser pointer into a sleeve pipe is attached to the support ring so as to be oriented toward an in-plane of the reflection mirror. A guide scope is attached to the support ring such that an optical axis thereof matches an optical axis of the laser pointer unit.

Abstract translation: 一种用于飞行器安装的激光装置的激光反射装置，当通过从停放的飞行器发射激光到身体外部对飞行器安装的激光装置进行功能检查时，发射的激光可以被反射在 期望方向安全有效。 反射镜能够围绕其至少一个平面内的水平轴自转，并且支撑环附接到反射镜以能够围绕平面内垂直轴线旋转并且反射的平面内水平轴线 镜子。 通过将激光指示器插入到套筒管中而形成的激光指示器单元被安装到支撑环上以朝向反射镜的平面内。 引导范围附接到支撑环，使得其光轴与激光指示器单元的光轴匹配。

公开(公告)号：US20130088705A1

公开(公告)日：2013-04-11

申请号：US13644573

申请日：2012-10-04

Applicant: JAPAN AEROSPACE EXPLORATION AGENCY

Inventor： Takashi Asahara ,  Hamaki Inokuchi

IPC: G01P3/36

CPC classification number: G01S17/95 ,  G01S7/4876 ,  G01S17/58 ,  Y02A90/19

Abstract: A colored noise reduction method for an optical remote airflow measurement apparatus, which emits laser light into the atmosphere as a transmission signal and measures a wind speed of an airflow in a remote region on the basis of a Doppler shift amount of a frequency between the transmission signal and a reception signal, includes: considering a signal strength of scattered light to be substantially non-existent in a remotest region and beyond; calculating a noise distribution by performing processing to average the signal strength in respective Doppler frequency components divided at intervals of a certain frequency in the remotest measurement region and beyond, and performing subtraction processing in each of the Doppler frequency components on all signal strength distributions of the measurement region, which are obtained by dividing the noise distribution at intervals of a certain distance.

Abstract translation: 一种用于光学远程气流测量装置的彩色降噪方法，其将激光发射到大气中作为传输信号，并且基于传输之间的频率的多普勒频移量来测量远程区域中的气流的风速 信号和接收信号，包括：考虑到在最远的区域以内基本上不存在散射光的信号强度; 通过对最远的测量区域以外的特定频率的间隔分割的各个多普勒频率成分的信号强度进行平均化处理来计算噪声分布，对所述多普勒频率成分的各信号强度分布进行减法处理 测量区域，其通过以一定距离的间隔分割噪声分布而获得。