【摘要】 提出了一种基于共振的激光脉冲飞行时间测距时刻探测技术。通过理论分析了单极性准高斯脉冲通过RLC振荡电路后成形的双极性脉冲特性,结果表明,成型后的双极性脉冲信号的过零点与输入信号的幅值无关,因而消除了信号幅度变化对定时精度的影响。介绍了脉冲激光飞行时间探测电路设计,测量了双极性脉冲波形和经过时刻甄别电路后的输出波形,其单次时间测量精度优于67 ps,能够满足高精度脉冲激光测距的要求。更多还原

【Abstract】 Timing Detection based on resonance for a pulsed time-of-flight laser range finder is presented.The bipolar pulse characteristics formed after unipolar gaussian pulse through the RLC oscillator circuit.Theory analysis shows that the bipolar pulse signal formed is irrelevant to the zero-crossing input signal amplitude,the influence of signal amplitude change on timing accuracy is therefore eliminated.Pulsed time-of-flight laser receiving channel circuit and the experiment results is expounded,and the single time measurement accuracy is less than 67ps,which meets the requirement of high precision pulsed laser range finder.更多还原