研究目的
Investigating the performance of a SPAD-based LiDAR sensor in high ambient light environments for automotive applications.
研究成果
The SPAD-based LiDAR sensor demonstrates reliable measurement performance in high ambient light environments by utilizing photon coincidence detection. Adjusting the coincidence parameters based on ambient light conditions allows for consistent range measurements across a wide dynamic range of target reflectance.
研究不足
The study is limited to the performance evaluation of the SPAD-based LiDAR sensor under specific ambient light conditions and target reflectance levels. Further optimization may be required for different environmental conditions.
1：Experimental Design and Method Selection:
The study involves the design and implementation of a SPAD-based LiDAR sensor in an automotive certified 0.35 μm CMOS process. The sensor uses four SPADs in each pixel to detect photon coincidences for ambient light suppression.
2：35 μm CMOS process. The sensor uses four SPADs in each pixel to detect photon coincidences for ambient light suppression.
Sample Selection and Data Sources:
2. Sample Selection and Data Sources: The sensor is tested under various ambient light conditions and target reflectance levels to evaluate its performance.
3：List of Experimental Equipment and Materials:
A LiDAR camera with the developed sensor is built for measurement and demonstration purposes.
4：Experimental Procedures and Operational Workflow:
The sensor's performance is evaluated by measuring the success probability of distance measurements under different conditions.
5：Data Analysis Methods:
The success probability is calculated from 100 single distance measurements, each using 4000 single laser pulses and time measurements.
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