激光散射告警中的被照射目标判断方法研究

Judgment of Illuminated Target in Laser Scattering Warning

对激光散射信号进行探测是一种常用的激光告警方式,但这种方式不能判断告警范围内不同的被照射目标。为了实现激光散射告警中对不同被照射目标的判断,研究了激光从各个方向对目标照射时,告警装置各个窗口的告警响应情况,分析了不同目标位置给告警结果带来的差异程度,提出通过告警装置各个窗口告警结果的告警编码和脉冲时序判断被照射目标的方法。研究结果表明,该方法可以区分相对告警装置夹角不小于72°、与告警装置均相距50 m的两个目标,在360°范围内可以对符合规定要求的5个目标实现判别。研究结果为增强散射探测型激光告警装置的告警能力、提高后续防护的针对性和效率提供了技术参考。

Detecting laser seattering signals is a commonly used laser waming method,which cannot deter-mine different illuminated targets within the waming range.In order to realize the judgment of differentilluminated targets in laser seattering,waring,the waming response of each window ofthe warming de.vice is studied when the laser irradiates the target from various directions.The degree of difference inthe warning results caused by different target positions is analyzed,A method for judging the illuminatedtargets is proposed by using the alarm encoding and pulse timing of the warning results in each windowof the waming,device.The research results indicate that this method can distinguish two targets with arelative angle of no less than 72°to the waming device and a distance of 50 m from the warningdevice,and can identify five targets that meet the specified requirements within 360°.The researchresults provide a technical referenee for enhaneing,the waming capability of sealtering detection laserwaming device and improving the pertinence and effcieney of subsequent protection.