This article presents a 36-channel scanning light detection and ranging (LiDAR) sensor with an on-chip single-photon avalanche diode array. The sensor has an area-efficient 11-bit in situ histogramming time-to-digital converter with a 3000 ×78 μm2 per channel area based on a mixed-signal accumulator, though it is incorporated with histogramming and filtering capabilities. Furthermore, owing to its embedded interference (IF) filter, the sensor can perform reliable direct time-of-flight measurements even with IF from 32 different LiDAR sensors. The LiDAR system also has a beam scanner that comprises dual laser diodes for IF elimination and a hybrid mirror such that high-resolution images with a resolution of 2200 ×36 can be acquired with a wide field-of-view of 120° ×8°.

中文翻译：

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具有两步多事件直方图 TDC 和嵌入式干涉滤波器的直接 TOF 扫描 LiDAR 传感器


本文介绍了一种具有片上单光子雪崩二极管阵列的 36 通道扫描光探测和测距 (LiDAR) 传感器。该传感器具有面积高效的 11 位原位直方图时间数字转换器，基于混合信号累加器，每通道面积为 3000 ×78 μm2，但它还具有直方图和滤波功能。此外，由于其嵌入式干扰 (IF) 滤波器，即使使用来自 32 个不同 LiDAR 传感器的 IF，该传感器也可以执行可靠的直接飞行时间测量。 LiDAR系统还配备光束扫描仪，由用于消除中频的双激光二极管和混合反射镜组成，可在120°×8°的宽视场下获取分辨率为2200×36的高分辨率图像。