公开(公告)号：US20150212201A1

公开(公告)日：2015-07-30

申请号：US14412976

申请日：2013-07-04

Applicant: ISRAEL AEROSPACE INDUSTRIES LTD.

Inventor： Uri Karazi ,  Benjamin Levy ,  Valery Heymann

IPC: G01S7/486 ,  G01S17/66

CPC classification number: G01S7/4861 ,  F41G7/226 ,  F41G7/2293 ,  G01S3/784 ,  G01S17/66

Abstract: The presently disclosed subject matter includes a method and system for enabling detection of signal reflection from a target designated by a pulse laser spot generated by a low-power laser designator. A signal comprising true signal portions reflected from said target and noise is received and sampled and a first value or a second value is assigned to each sample. The assigned (ith) values in K pulse rate intervals are summed to obtain respective summed values. One or more candidate clusters are identified from among the summed values and a final candidate cluster is selected from among said one or more candidate clusters. The final candidate cluster is located with respective samples of an incoming pulse rate interval, thereby detecting an area within said signal which comprises the true signal portions.

Abstract translation: 目前公开的主题包括用于能够检测由由低功率激光指示器产生的脉冲激光点指定的目标的信号反射的方法和系统。 包含从所述目标和噪声反射的真实信号部分的信号被接收和采样，并且将第一值或第二值分配给每个样本。 将K个脉冲速率间隔中的分配（第i个）值相加以获得相应的相加值。 从求和值中识别一个或多个候选聚类，并从所述一个或多个候选聚类中选择最终候选聚类。 最后的候选聚类与进入的脉冲间隔的各个样本相对应，从而检测包括真实信号部分在内的所述信号内的区域。

公开(公告)号：US09869756B2

公开(公告)日：2018-01-16

申请号：US14898446

申请日：2014-06-19

Applicant: ISRAEL AEROSPACE INDUSTRIES LTD.

Inventor： Benjamin Levy ,  Valery Heymann ,  Igal Greenberg ,  Uri Karazi ,  Amnon Ychye

IPC: G01C21/02 ,  G01S7/491 ,  F41G3/14 ,  F41G7/22 ,  G01S3/784 ,  G01S7/493

CPC classification number: G01S7/4913 ,  F41G3/145 ,  F41G7/226 ,  F41G7/2293 ,  G01S3/784 ,  G01S7/493

Abstract: The presently disclosed subject matter includes a laser system and a respective method of detecting a signal reflected from a target illuminated by a modulated CW light source configured to generate a modulated laser signal at a predefined modulation frequency. A signal comprising true laser signal portions reflected from said target, and noise is received; the signal is filtered for selecting laser signal portions at a modulation frequency band; and the true signal portions in the signal are detected, if the energy at the modulation frequency band is greater than a given threshold.