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| 脉冲激光探测的最大探测距离的研究 | |
| 引用本文： | 刘恺,崔占忠. 脉冲激光探测的最大探测距离的研究[J]. 光学技术, 2011, 37(2): 143-147 |
| 作者姓名： | 刘恺 崔占忠 |
| 作者单位： | 北京理工大学,机电工程与控制国防重点实验室,北京,100081 |
| 摘 要： | 脉冲激光探测的最大探测距离与发射信号功率有关,根据系统发射端瞬时功率的形式,通过计算得出了脉冲激光平均发射功率和最大瞬时功率分别与驱动电流的脉冲上升沿时间、脉冲宽度、脉冲重复周期的关系.结合传输衰减、弱信号检测和信号预处理过程中的信号功率变化,得出了最大探测距离与激励电流波形参数、光电探测器参数、信号预处理电路噪声、信... |
| 关 键 词： | 应用光学 脉冲激光 探测距离 发射功率 |
Research on the maximum detection range in pulse laser detection |
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| LIU Kai,CUI Zhanzhong. Research on the maximum detection range in pulse laser detection[J]. Optical Technique, 2011, 37(2): 143-147 | |
| Authors: | LIU Kai CUI Zhanzhong |
| Affiliation: | (National Defense Key Laboratory of Mechatronics Engineerising and Control, Beijing Institute of Technology,Beijing 100081,China) |
| Abstract: | The maximum detection range is related to the transmitted signal in pulse laser detection.The curves of transmitted average power and maximal instantaneous power as the function of rising edge time,pulse width and pulse repetition cycle are calculated on the expression of the transmitted instantaneous power.The maximal detection range as the function of pulse current parameters,capability of the photodetector,noise in signal pretreatment circuit,impedance of signal pretreatment circuit and threshold voltage of comparator can also be calculated based on the power variations in transmitted attenuation,weak signal detection and signal pretreatment.The maximal detection range increases with the reducing duty ratio of the drive current when the transmitted average power is constant.The maximal detection range can be estimated on the transmitted signal parameters in pulse laser detection. |
| Keywords: | applied optics pulse laser detection range transmitted power |
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