激光与光电子学进展, 2020, 57 (19): 192804, 网络出版: 2020-09-27
激光雷达系统中脉冲整形电路研究 
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An Investigation on a Pulse-Shaping Circuit in Lidar Systems
图 & 表
图 1. 探测距离与探测器接收功率的变化关系
Fig. 1. Relationship between detection distance and received power of detector
图 3. 激光测距系统示意图。(a)激光测距系统总体框图;(b)激光测距系统搭建实物图
Fig. 3. Schematic of laser ranging system. (a) Overall block diagram of laser ranging system; (b) picture of laser ranging system
图 4. 峰值检波中使用的微分电路。(a)微分电路示意图;(b)微分电路输出波形
Fig. 4. Differential circuit used in peak detection. (a) Schematic of differential circuit; (b) output waveform of differential circuit
图 7. 不同输入信号幅度下恒比定时整形方式原理图。(a)输入信号未饱和;(b)输入信号饱和
Fig. 7. Schematic of constant-ratio timing pulse shaping under different input signal amplitudes. (a) Unsaturated input signal; (b) saturated input signal
图 9. 峰值检波电路输入信号。(a)峰值检波电路回波放大后的信号;(b)经过微分电路后的信号
Fig. 9. Input signal of peak detection circuit. (a) Received and amplified signal in the peak detection circuit; (b) signal after differential circuit
图 10. 峰值检波电路输出信号。(a)峰值检波电路比较器输出PECL信号;(b)峰值检波整形模块输出的TTL信号
Fig. 10. Output signal of peak detection circuit. (a) PECL signal output by the comparator in the peak detection circuit; (b) TTL signal output by the shaping module in the peak detection circuit
表 1使用峰值检波电路时激光测距系统测试数据
Table1. Test data of laser ranging system using peak detection circuit
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表 2使用恒比定时电路时激光测距系统测试数据
Table2. Test data of laser ranging system using a constant-ratio timing circuit
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陈星驰, 于笑楠, 佟首峰, 赵佰秋. 激光雷达系统中脉冲整形电路研究[J]. 激光与光电子学进展, 2020, 57(19): 192804. Xingchi Chen, Xiaonan Yu, Shoufeng Tong, Baiqiu Zhao. An Investigation on a Pulse-Shaping Circuit in Lidar Systems[J]. Laser & Optoelectronics Progress, 2020, 57(19): 192804.
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