公开(公告)号：US09557411B2

公开(公告)日：2017-01-31

申请号：US14941937

申请日：2015-11-16

Applicant: Airbus DS GmbH

Inventor： Filippo Ales ,  Oliver Mandel ,  Peter Gath

IPC: G01C3/08 ,  G01S11/12 ,  G01B11/02 ,  G01B9/02

CPC classification number: G01S11/12 ,  G01B9/02084 ,  G01B11/026 ,  G01B2290/10

Abstract: A signal acquisition and distance variation measurement system for laser ranging interferometers comprising a signal acquisition unit. This unit comprises a frequency detection subsystem to detect the frequency of a received laser beam measurement signal which is buried in noise, wherein the subsystem comprises an acquisition subsystem with a wavelet packet decomposition unit and a phase/frequency detector PLL; a main PLL unit being coupled to the frequency detection subsystem for receiving the detected frequency of the measurement signal for phase estimation of the measurement signal; and a phasemeter band detection subsystem for detecting whether the measurement signal frequency is higher or lower than a reference signal frequency of a reference laser beam by operating a known change to the frequency of the reference signal and measuring the consequent change in the frequency of an interference signal for having the phase of reference signal locked to the measurement signal phase.

Abstract translation: 一种用于包括信号采集单元的激光测距干涉仪的信号采集和距离变化测量系统。 该单元包括频率检测子系统，用于检测被埋在噪声中的接收的激光束测量信号的频率，其中该子系统包括具有小波包分解单元和相位/频率检测器PLL的采集子系统; 主PLL单元耦合到频率检测子系统，用于接收用于测量信号的相位估计的测量信号的检测频率; 以及用于通过对参考信号的频率进行已知改变来测量测量信号频率是高于还是低于参考激光束的参考信号频率的相位测量带检测子系统，并且测量随后的干扰频率变化 使参考信号的相位锁定到测量信号相位的信号。

公开(公告)号：US10317277B2

公开(公告)日：2019-06-11

申请号：US15485894

申请日：2017-04-12

Applicant: AIRBUS DS GMBH

Inventor： Oliver Mandel ,  Dennis Weise ,  Michael Chwalla

IPC: G01S7/481 ,  G01J1/04 ,  G01J1/42 ,  G01S17/08 ,  G01S17/74 ,  G01C3/02

Abstract: A reflective device for an optical measuring system and for arranging in a measuring object, including an optical deflection device and a retroreflector. The deflection device can deflect a light beam at the optical deflection device from an incident axis. The retroreflector can reflect the beam parallel to its incoming direction for each of various incoming directions of a light beam onto the retroreflector. The reflective device can be arranged in the measuring object such that a measuring beam of the optical measuring system, pointed at the measuring object and arriving at the optical deflection device in a first direction, is deflected by the optical deflection device onto the retroreflector in a different, second direction and, following reflection at the retroreflector, is deflected by the optical deflection device in reverse parallel to the first direction. An optical measuring system, a flying object and a flying object system are further described.

公开(公告)号：US20160139253A1

公开(公告)日：2016-05-19

申请号：US14941937

申请日：2015-11-16

Applicant: Airbus DS GmbH

Inventor： Filippo Ales ,  Oliver Mandel ,  Peter Gath

IPC: G01S11/12

CPC classification number: G01S11/12 ,  G01B9/02084 ,  G01B11/026 ,  G01B2290/10

Abstract: A signal acquisition and distance variation measurement system for laser ranging interferometers comprising a signal acquisition unit. This unit comprises a frequency detection subsystem to detect the frequency of a received laser beam measurement signal which is buried in noise, wherein the subsystem comprises an acquisition subsystem with a wavelet packet decomposition unit and a phase/frequency detector PLL; a main PLL unit being coupled to the frequency detection subsystem for receiving the detected frequency of the measurement signal for phase estimation of the measurement signal; and a phasemeter band detection subsystem for detecting whether the measurement signal frequency is higher or lower than a reference signal frequency of a reference laser beam by operating a known change to the frequency of the reference signal and measuring the consequent change in the frequency of an interference signal for having the phase of reference signal locked to the measurement signal phase.

Abstract translation: 一种用于包括信号采集单元的激光测距干涉仪的信号采集和距离变化测量系统。 该单元包括频率检测子系统，用于检测被埋在噪声中的接收的激光束测量信号的频率，其中该子系统包括具有小波包分解单元和相位/频率检测器PLL的采集子系统; 主PLL单元耦合到频率检测子系统，用于接收用于测量信号的相位估计的测量信号的检测频率; 以及用于通过对参考信号的频率进行已知改变来测量测量信号频率是高于还是低于参考激光束的参考信号频率的相位测量带检测子系统，并且测量随后的干扰频率变化 使参考信号的相位锁定到测量信号相位的信号。