High-Ranging-Precision FMCW LiDAR With Adaptive Pre-Distortion of Current Injection to a Semiconductor Laser
High-Ranging-Precision FMCW LiDAR With Adaptive Pre-Distortion of Current Injection to a Semiconductor Laser
复制标题
具有自适应预失真电流注入半导体激光器的高精度 FMCW LiDAR
DOI：
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发表时间：
2024
影响因子：
4.7
通讯作者：
Chunfeng Ge
中科院分区：
文献类型：
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作者：
Jiewei Yang;Yun Meng;Xiaolong Hu;Tianxin Yang;Zhaoying Wang;Dongfang Jia;Chunfeng Ge
调频连续波（FMCW）激光器是FMCW激光雷达系统的关键部件。在本文中，我们发展并实作一快速线性化演算法，以自适应地预失真注入电流，我们设法将三角波调变频率的残余非线性度降低至<inline-formula><tex-math notation="LaTeX">5.4元 乘以10^{-9}$</tex-math></inline-formula>和<inline-formula><tex-math notation="LaTeX">4.1美元 分别</tex-math></inline-formula>用于下斜坡和上斜坡频率扫描。下降和上升斜坡频率扫描的相对剩余非线性分别为0.0020%和0.0017%。我们使用这种具有高线性度的FMCW激光源来实现LiDAR系统。我们展示了三维成像的深度对比度和测量的距离和速度，同时，一个移动的对象。
Frequency-modulated continuous-wave (FMCW) lasers are the key components in FMCW LiDAR systems. In this paper, we develop and implement a rapid linearization algorithm to adaptively pre-distort the injection current, we manage to reduce the residual nonlinearity of the triangular-waveform modulated frequency down to <inline-formula><tex-math notation="LaTeX">$5.4 imes 10^{-9}$</tex-math></inline-formula> and <inline-formula><tex-math notation="LaTeX">$4.1 imes 10^{-9}$</tex-math></inline-formula> for down- and up-ramp frequency sweeping, respectively. The relative residual nonlinearity for down- and up-ramp frequency sweeping are 0.0020% and 0.0017%, respectively. We use this FMCW laser source with high linearity to implement a LiDAR system. We showcase three-dimensional imaging with the depth contrast and the measurement of the distance and velocity, simultaneously, of a moving object.
影响因子：
16.6
作者：
Qian R;Zhou KC;Zhang J;Viehland C;Dhalla AH;Izatt JA
通讯作者：
Izatt JA