Analysis of false alarm for imaging space-based laser warning system

In view of the problem of false alarm in imaging space-based laser warning system, the effects of sunlight and lightning on the threaten laser detection and attack event determination are studied by analyzing and calculating the radiant energy density and space-time feature of imaging spot, respecti...

Full description

Saved in:
Bibliographic Details
Published inOptoelectronics letters Vol. 8; no. 2; pp. 105 - 108
Main Author 董红军 周中亮 黄富瑜
Format Journal Article
LanguageEnglish
Published Heidelberg Tianjin University of Technology 01.03.2012
Subjects
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
激光成像
激光探测
空基
能量密度
误报
资源调查
雷击事件
预警系统
Imaging Spot
Lightning Discharge
Illumination Laser
False Alarm
Warning System
Online AccessGet full text
ISSN1673-1905
1993-5013
DOI10.1007/s11801-012-1070-y

Cover

More Information
Summary:In view of the problem of false alarm in imaging space-based laser warning system, the effects of sunlight and lightning on the threaten laser detection and attack event determination are studied by analyzing and calculating the radiant energy density and space-time feature of imaging spot, respectively. The results show that the main false alarm resourses of space- based laser warning system are sunlight and lightning. The sunlight should exposure the detector directly in one ninth of the satfllite orbital period, and the imaging spot of sun is similar to the attack laser. The lightning imaging spot is similar to the illumination laser. About 1.4 lightning events can occur in the field of view （FOV） of the warning system per second. It could not discriminate spots of sun, lightning and threaten laser by the frame subtraction technology.
Bibliography:DONG Hong-jun , ZHOU Zhong-liang, and HUANG Fu-yu（Department of Optics and Electronic Engineering, Ordnance Engineering College, Shijiazhuang 050003, China）
12-1370/TN
In view of the problem of false alarm in imaging space-based laser warning system, the effects of sunlight and lightning on the threaten laser detection and attack event determination are studied by analyzing and calculating the radiant energy density and space-time feature of imaging spot, respectively. The results show that the main false alarm resourses of space- based laser warning system are sunlight and lightning. The sunlight should exposure the detector directly in one ninth of the satfllite orbital period, and the imaging spot of sun is similar to the attack laser. The lightning imaging spot is similar to the illumination laser. About 1.4 lightning events can occur in the field of view （FOV） of the warning system per second. It could not discriminate spots of sun, lightning and threaten laser by the frame subtraction technology.
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-012-1070-y