| Citation: | Ruqing LIU, Yan JIANG, Chenghao JIANG, Feng LI, Jingguo ZHU. Amplifying Circuit Interface Model for LiDAR Signal Processing Systems[J]. Journal of Electronics & Information Technology, 2020, 42(7): 1636-1642. doi: 10.11999/JEIT190427
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The monolithic signal processing circuit system for Light Detection And Ranging (LiDAR) measurement has significant practical values in terms of improving LiDAR measurement accuracy and data rate, shortening measurement time, and reducing equipment size and power consumption. As the environment interface problem is less considered, the appropriate input interface model must be established to break through the technology difficulty to associate circuit system with photodetectors, die chip, package, transmission line, test board and so on in the operating frequency range. By the combination of theoretical analysis and model simulation, the real working environment of circuit systemfor LiDAR signal processing can be simulated reasonably. Furthermore, based on CMOS technology, the signal processing circuit chip is tested with different photodetector parasitic capacitances. The well agreements between simulation and the testing results validate the feasibility of the input interface model.
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