摘要
估算了脉冲激光在大气环境下对典型CCD探测器的有效干扰距离,为提高激光干扰系统空间布局的合理性提供依据。计算了脉冲激光在近地面传输时的远场功率密度,进行了脉冲激光损伤面阵CCD探测器的实验,得到了造成CCD探测器出现不同损伤情况所需要的近似的激光能量密度值。在此基础上,综合理论计算与实验结果得出结论:波长532 nm、单脉冲能量1 J、脉宽10 ns重复工作频率1 Hz的脉冲激光在1500 m内会严重损伤CCD探测器;在1500～2800 m内会严重干扰CCD探测器;在2800～7000 m内会使CCD探测器的成像质量下降。
Calculation was made for the pulsed laser to jam the CCD operatim.The fas-field power density was analysized to estimate the effect of the baser jamming system.Experiments were made to test the effects of pulsed laser on the CCD′s performance.The effective values of laser energy were obtained to result in various malfunction of CCD.The conclusion from theoretical analysls and practical experiments is that：a laser with 532 nm wavelength,1 J energy and 10 ns pluse width will damage the CCD in 1500 m,will jam the operation of a CCD in 1500～2800 m and will seriously lower the image qnality of a CCD in 2800～7000 m.
出处
《激光与红外》
CAS
CSCD
北大核心
2010年第7期729-735,共7页
Laser & Infrared
关键词
激光干扰
CCD
大气透过率
作用距离
laser irradiation
CCD
atmospheric transmittance
operation range
