公开(公告)号：US06320651B1

公开(公告)日：2001-11-20

申请号：US09532422

申请日：2000-03-23

申请人： Sigmund Manhart ,  Elke Schmidt

发明人： Sigmund Manhart ,  Elke Schmidt

IPC分类号： G01P336

CPC分类号： G01P5/26 ,  G01S7/4811 ,  G01S7/499 ,  G01S17/58

摘要： A velocity such as wind velocity is measured based on a Doppler shift of a backscattered or returned laser signal. The Doppler shift of the backscattered beam is determined from a change in the polarization state or intensity shift of the received or backscattered signal after it has passed through a polarization-dispersive element (PD) and through a polarization analyzer (PA). The electrical signals (I1 and I2) generated from two partial beams provided by the polarization analyzer (PA) represent an the intensity shift. The signals are processed in a computer and the resulting information is displayed, for example.

摘要翻译： 基于反向散射或返回的激光信号的多普勒频移来测量诸如风速的速度。 后向散射光束的多普勒频移由接收或反向散射信号经过偏振分散元件（PD）和偏振分析器（PA）的偏振状态或强度偏移的变化确定。 由偏振分析器（PA）提供的两个部分光束产生的电信号（I1和I2）表示强度偏移。 信号在计算机中处理，并且显示所得到的信息。

公开(公告)号：US4825063A

公开(公告)日：1989-04-25

申请号：US165639

申请日：1988-03-08

申请人： Thorsteinn Halldorsson ,  Ernst-August Seiffarth ,  Sigmund Manhart

发明人： Thorsteinn Halldorsson ,  Ernst-August Seiffarth ,  Sigmund Manhart

IPC分类号： G01S3/78 ,  G01S3/781 ,  G01S3/784 ,  G01J1/20

CPC分类号： G01S7/4804 ,  G01S3/7803 ,  G01S3/781 ,  G01S3/784

摘要： A detector device for detecting and indicating the origin of laser radiation is disclosed. The detector has a plurality of discrete optics, with the discrete optics being arranged in azimuth planes. Each discrete optics monitors a preset solid angle with significant overlap between the angles. Each discrete optics has a first and second wave guide. The first wave guides are coupled to a first opto-electric transducer and the second wave guide is coupled to a second opto-electric transducer. The transducers are respectively coupled to a first and a second detector stage. All first wave guides leading to the first detector stage are of equal length while the second wave guides are of incrementally increasing length in the direction of increasing azimuth angle. The incrementally increasing length causes increasing travel time for light pulses over the wave guides. A transit time measuring device is coupled to the first and second detector stage and determines the beginning and end of the transit time measurement and, as a function of its, the solid angle of the incident laser radiation. Additionally, the opto-electric transducers of the first and second detector stages are coupled with a resonant circuit which acts as a filter stage. The resonant period of the resonant circuit is at least four times larger than the duration of the build-up time of the arriving laser pulse. The damped resonant circuits of the first and second detector stages are respectively coupled to passage-through-the-zero-axis detectors. The first time the incoming signal triggers one of the zero-axis detectors a starting signal is sent to the transit time measuring circuit and the next time one of the zero-axis detectors is triggered a stopping signal is sent to the measuring circuit.

摘要翻译： 公开了一种用于检测和指示激光辐射原点的检测器装置。 检测器具有多个离散光学器件，分立光学器件被布置在方位平面中。 每个离散光学器件监视预定的立体角度，角度之间具有显着的重叠。 每个离散光学器件具有第一和第二波导。 第一波导耦合到第一光电换能器，第二波导耦合到第二光电换能器。 传感器分别耦合到第一和第二检测器级。 导向第一检测器级的所有第一波导长度相等，而第二波导沿着增加的方位角的方向递增地增加长度。 逐渐增加的长度导致光脉冲在波导上的行进时间增加。 通行时间测量装置耦合到第一和第二检测器级，并确定通行时间测量的开始和结束，并且作为其函数，确定入射激光辐射的立体角。 此外，第一和第二检测器级的光电换能器与用作滤波器级的谐振电路耦合。 谐振电路的谐振周期比到达的激光脉冲的累积时间的持续时间大至少四倍。 第一和第二检测器级的阻尼谐振电路分别耦合到通过零轴检测器。 第一次输入信号触发一个零轴检测器，一个启动信号被发送到通行时间测量电路，下一次触发一个零轴检测器时，一个停止信号被发送到测量电路。

公开(公告)号：US4770526A

公开(公告)日：1988-09-13

申请号：US929623

申请日：1986-11-12

申请人： Sigmund Manhart ,  Peter Dyrna ,  Bernd Kunkel

发明人： Sigmund Manhart ,  Peter Dyrna ,  Bernd Kunkel

IPC分类号： G01S7/481 ,  G01S7/483 ,  G01S17/10 ,  G01C3/08

CPC分类号： G01S17/105 ,  G01S7/483 ,  G01S7/4818

摘要： A radar ranging system uses a laser transmitter and a single detector for producing the start and stop signals for the time interval measurement. Two reference signals are produced by passing two light portions, decoupled from the laser light to be transmitted to a target, through two different delay lines to the detector. The time difference between the first reference signal and a target signal is a measure for the range to be measured. The time difference between the two reference signals is used as a calibration measure for repeatedly calibrating the system. The true range is calculated by forming the ratio of the two time intervals.

摘要翻译： 雷达测距系统使用激光发射器和单个检测器来产生时间间隔测量的起始和停止信号。 两个参考信号通过将两个光部分通过两条不同的延迟线传递到检测器，从与要传输到目标的激光分离的两个光部分产生。 第一参考信号和目标信号之间的时间差是要测量的范围的量度。 两个参考信号之间的时差用作重复校准系统的校准量度。 通过形成两个时间间隔的比率来计算真实范围。

公开(公告)号：US4717252A

公开(公告)日：1988-01-05

申请号：US744113

申请日：1985-06-12

申请人： Thorsteinn Halldorsson ,  John Langerholc ,  Sigmund Manhart ,  Ernst-August Seiffarth

发明人： Thorsteinn Halldorsson ,  John Langerholc ,  Sigmund Manhart ,  Ernst-August Seiffarth

IPC分类号： G01S7/487 ,  G01S17/02 ,  G01S17/10 ,  G01C3/08

CPC分类号： G01S17/10 ,  G01S17/02 ,  G01S7/487 ,  G01S7/4876

摘要： A method and system is used for detecting the presence of measuring the distance to and producing an image of, objects which, while being strongly absorbing or reflecting themselves, are hid from sight in a medium which is strongly dampening due to light dispersion, such as submersed submarines. The method provides, in addition to detecting the reflection from the surface of the object, a full acquisition of the variation of the backscatter of scanning laser pulses by the medium surrounding the object, with laser pulse transmitters operating with a much larger pulse duration, being usable for this purpose.

摘要翻译： 一种方法和系统被用于检测测量与被强烈吸收或反射的对象的距离和产生图像的存在，在由于光分散而强烈衰减的介质中被隐藏， 潜水艇 该方法除了检测来自物体表面的反射之外，还通过激光脉冲发射器以更大的脉冲持续时间来操作，通过围绕物体的介质，完全获取扫描激光脉冲的反向散射的变化， 可用于此目的