CAJ | 학술논문

目的：生物气溶胶激光遥测系统按光源配置参数主要分为3类，即传统激光雷达、微脉冲激光雷达、伪随机调制激光雷达。其系统光源参数严重影响系统的危险性和探测灵敏度，需要进行优化计算。方法参考美国关于激光产品使用的安全标准，并建立对应的激光雷达的数学模型，对比3种激光雷达光源配置方式的信噪比（ SNR）和安全性，计算重复频率、脉冲能量、发散角、危险距离等因素的影响。结果计算结果表明，在保证人眼安全的前提下，使用微脉冲雷达的光源激发方式，脉冲频率设置约为55 kHz时系统探测的SNR最高。结论人眼安全是前提，对于激光遥测系统的光源激发方式影响较大，该文计算出最优的光源配置方法，阐明了较为安全的应用方式。
목적：생물기용효격광요측계통안광원배치삼수주요분위3류，즉전통격광뢰체、미맥충격광뢰체、위수궤조제격광뢰체。기계통광원삼수엄중영향계통적위험성화탐측령민도，수요진행우화계산。방법삼고미국관우격광산품사용적안전표준，병건립대응적격광뢰체적수학모형，대비3충격광뢰체광원배치방식적신조비（ SNR）화안전성，계산중복빈솔、맥충능량、발산각、위험거리등인소적영향。결과계산결과표명，재보증인안안전적전제하，사용미맥충뢰체적광원격발방식，맥충빈솔설치약위55 kHz시계통탐측적SNR최고。결론인안안전시전제，대우격광요측계통적광원격발방식영향교대，해문계산출최우적광원배치방법，천명료교위안전적응용방식。
Objective There are three categories of bioaerosol laser telemetry systems according to the light source configuration parameters:namely traditional lidar(light datection and ranging,laser radar), micro-pulse lidar and pseudo-random modulation(lidar).The system source parameters,which impact the degree of danger and detection sensitivity of the system, need to be optimized.Methods With reference to the USA laser product safety standards and by establishing the corresponding mathematical model of a lidar, the three categories of lidar source configuration were compared according to signal to noise ratio(SNR) and security before the repetition rate, pulse energy, divergence angle, distance and other dangerous impact factors were calculated.Results The results showed that to ensure eyesafety, the use of the pulse frequency should be set at 55 kHz for the highest SNR under the micro-pulse lidar excitation mode.Conclusion The eyesafety requirements impact the excitation of light source of a bioaerosol telemetry system.