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.