Abstract To overcome the imaging speed and resolution of traditional imaging lidar, we propose a spatial and temporal multiplexing array imaging lidar technique. Based on optical orthogonal code division multiple access (OOCDMA), square laser beam with 22N-order code division multiple access coding are divided into 2N×2N, then they are projected to the targets without scanning. Finally, the backscatters are received by M detectors array and each detector can obtain 22N pixels. Thus M × 22N pixels information should be achieved at the terminal. The array imaging lidar takes advantage of spatial and temporal coding multiplexing technique which uses only M detectors to acquire M × 22N pixels. Therefore, the imaging speed and resolution for lidar could be improved ideally. It provides a novel approach for high resolution and efficiency imaging lidar system with small scale detectors array.

中文翻译：

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基于OOCDMA的时空复用阵列成像激光雷达技术

摘要 为了克服传统成像激光雷达成像速度和分辨率的问题，我们提出了一种时空复用阵列成像激光雷达技术。基于光正交码分多址（OOCDMA）技术，将22N阶码分多址编码的方形激光束分成2N×2N，无需扫描即可投射到目标上。最后，背向散射被M个探测器阵列接收，每个探测器可以获得22N个像素。因此在终端应该实现 M × 22N 像素信息。阵列成像激光雷达利用空间和时间编码复用技术，仅使用 M 个探测器来获取 M × 22N 个像素。因此，可以理想地提高激光雷达的成像速度和分辨率。